Re: [R] Function modification: how to calculate values for every combination?
outer(x,y,fun)
Lauri Nikkinen wrote:
> Hello,
>
> I have a function like this:
>
> fun <- function (x, y) {
> a <- log(10)*y
> b <- log(15)*x
> extr <- a-b
> extr
> }
>
> fun(2,3)
> [1] 1.491655
>
> x <- c(1,2,3)
> y <- c(4,5,6)
> fun(x, y)
> [1] 6.502290 6.096825 5.691360
>
> How do I have to modify my function that I can calculate results using
> every combination of x and y? I would like to produce a matrix which
> includes the calculated values in every cell and names(x) and names(y)
> as row and column headers respectively. Is the outer-function a way to
> solution?
>
> Best regards,
> Lauri
>
> __
> R-help@stat.math.ethz.ch mailing list
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
>
--
Erich Neuwirth, University of Vienna
Faculty of Computer Science
Computer Supported Didactics Working Group
Visit our SunSITE at http://sunsite.univie.ac.at
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Re: [R] by group problem
Perhaps you want this?
data <- NULL
data$state <- c(rep("Illinois", 10), rep("Wisconsin", 10))
data$county <- c("Adams", "Brown", "Bureau", "Cass", "Champaign",
"Christian", "Coles", "De Witt", "Douglas", "Edgar",
"Adams", "Ashland", "Barron", "Bayfield", "Buffalo",
"Burnett", "Chippewa", "Clark", "Columbia", "Crawford")
data$percentOld <- c(17.554849, 16.826594, 18.196593, 17.139242, 8.743823,
17.862746, 13.747967, 16.626302, 15.258940, 18.984435,
19.347022, 17.814436, 16.903067, 17.632781, 16.659305,
20.337817, 14.293354, 17.252820, 15.647179, 16.825596)
data<-data.frame(data,stringsAsFactors=FALSE)
rankWithinState<-unlist(tapply(-data$percentOld,data$state,rank))
names(rankWithinState)<-NULL
data<-data.frame(data,rankWithinState)
highCounties<-data[data$rankWithinState<=5,]
highCountiesSorted<-highCounties[order(highCounties$state,-highCounties$percentOld),]
Cory Nissen wrote:
> I am working with census data. My columns of interest are...
>
> PercentOld - the percentage of people in each county that are over 65
> County - the county in each state
> State - the state in the US
--
Erich Neuwirth, University of Vienna
Faculty of Computer Science
Computer Supported Didactics Working Group
Visit our SunSITE at http://sunsite.univie.ac.at
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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Re: [R] Excel
The quickest solution is to additionally install the package rcom from CRAN. A more detailed account can be found on our wiki at http://rcom.univie.ac.at especially on http://learnserver.csd.univie.ac.at/rcomwiki/doku.php?id=version_information_and_links Greg Snow wrote: > Erich, > > I just downloaded the latest version of the R dcom server etc from CRAN > (version 2.5, I had looked at the previous version, but wanted to try > the latest version (I will be responding to your e-mail, just wanted to > test some things rather than speak from ignorance (not that I always > take that approach))). > > When installing and further when running excel after the install I get > an error and a visual basic debugger pops up. The error window says: > "Compile error: Can't find project or library", The code window is > titled: "Rexcel.xla - MenuTools (Code)" and the line: "Function > ExcelVersionMajor() As Integer" is highlighted in yellow, a couple of > lines below that the word "Left" is highlighted/selected in the line > "ExcelVersionMajor = Cint(Left(Application.Version, pos - 1))" > > I have Excel 2000. > > > -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-39459 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Excel
There is a hack to get around the problem. It is definitely not a good solution, just a hack. Open the .csv file in a text editor and select everything. Paste it into an empty Excel sheet. Then use Data -> Text to Columns The third dialog box (at least it is the third one in Excel 2003) allows you to format each column of the data. This is the place where you can switch off the date interpretation of your ID column. AUG1838 probably is not onterpreted as date because Excel dates only start at 1/1/1900. Duncan Murdoch wrote: > On 8/28/2007 3:16 AM, J Dougherty wrote: >> On Monday 27 August 2007 22:21, David Scott wrote: >>> On Tue, 28 Aug 2007, Robert A LaBudde wrote: >>>> If you format the column as "Text", you won't have this problem. By >>>> leaving the cells as "General", you leave it up to Excel to guess at >>>> the correct interpretation. >>> Not true actually. I had converted the column to Text because I saw the >>> interpretation as a date in the .xls file. I saved the .csv file *after* >>> the column had been converted to Text. Looking at the .csv file in a text >>> editor, the entry is correct. >>> >>> I have just rechecked this. >>> >>> On reopening the .csv using Excel, the entry AUG2699 had been interpreted >>> as a date, and was showing as Aug-99. Most bizarre is that the NHI value >>> of AUG1838 has *not* been interpreted as a date. >>> -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-39459 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Stratified weighted statistics
In the help file for summarize in the examples section search for the following line # Get stratified weighted means Vikas Rawal wrote: >> Please look again at the help files for summarize and wtd.mean which >> show how to do this. -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-39459 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Excel
y easy to create a similar table just by having a quick look at the original table. Of course it is possible to design terrible spreadsheets. But it is also quite possible to write terrible R code. What makes spreadsheets very special is autorecalculation and autoupdating of charts, but also the point-and-click method of creating formulas (using relative and absolute references). And of course, knowing one tool always is dangerous, but this is also true in the case where the single known tool is R. -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-39459 -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-39459 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Excel
Excel bashing can be fun but also can be dangerous because
you are makeing your life harder than necessary.
Statisticians meanwhile know that the numerics of statistical
computation can be quite bad, therefore one should not use them.
But using our (we = Thomas Baier + Erich Neuwirth) RExcel addin either
with the R(D)COM server or with rcom (package on CRAN) allows you to use
all the nice features of Excel (yes, there are quite a few) and use R as
as the computational engine within Excel. The formula
=RApply("var",A1:A1000) in an Excel cell for example will use R to
compute the variance of the data in column A in Excel. If you change any
of the values in the range A1:A1000 will automatically recompute the
variance.
There is one feature in Excel which is extremely convenient, Pivot
tables. Anybody doing any work as statistical consultant really ought to
know about Pivot tables, and I am still surprised how many statisticians
do not know about it. Neither Gnumeric nor OpenOffice Calc offer
comparably convenient ways working with multidimensional tables.
I think the answer to the question
"Excel or R" of course is "Excel and R".
--
Erich Neuwirth, University of Vienna
Faculty of Computer Science
Computer Supported Didactics Working Group
Visit our SunSITE at http://sunsite.univie.ac.at
Phone: +43-1-4277-39464 Fax: +43-1-4277-39459
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] help and Firefox
I found a solution to my problem.
It is describe here.
http://kb.mozillazine.org/Windows_error_opening_Internet_shortcut_or_local_HTML_file_-_Firefox
Essentially, it involves switching off DDE for some file associations
in Windows Explorer.
It really is a Firefox bug.
Erich Neuwirth wrote:
> My configuration is Windows XP, R-2.5.1patched.
> My standard browser in Windows is Firefox 2.0.6,
> and I am using htmlhelp.
> I have problems with starting the browser for displaying help.
> help("lm") works as it should when Firefox is already running.
> When I do help("lm") and the browser is not yet started,
> I get
> Error in shell.exec(url) :
> 'C:\PROGRA~2\R\R-25~1.1\library\stats\html\lm.html' not found
> but nevertheless the browser starts and the html file is displayed
> some seconds later.
>
> If I try to use help from within a function and the browser is not open,
> the browser will not start and therefore help will not be displayed.
>
> Has anybody else experienced the same problem?
> Is there a solution?
>
>
--
Erich Neuwirth, University of Vienna
Faculty of Computer Science
Computer Supported Didactics Working Group
Visit our SunSITE at http://sunsite.univie.ac.at
Phone: +43-1-4277-39464 Fax: +43-1-4277-39459
__
R-help@stat.math.ethz.ch mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[R] help and Firefox
My configuration is Windows XP, R-2.5.1patched.
My standard browser in Windows is Firefox 2.0.6,
and I am using htmlhelp.
I have problems with starting the browser for displaying help.
help("lm") works as it should when Firefox is already running.
When I do help("lm") and the browser is not yet started,
I get
Error in shell.exec(url) :
'C:\PROGRA~2\R\R-25~1.1\library\stats\html\lm.html' not found
but nevertheless the browser starts and the html file is displayed
some seconds later.
If I try to use help from within a function and the browser is not open,
the browser will not start and therefore help will not be displayed.
Has anybody else experienced the same problem?
Is there a solution?
--
Erich Neuwirth, University of Vienna
Faculty of Computer Science
Computer Supported Didactics Working Group
Visit our SunSITE at http://sunsite.univie.ac.at
Phone: +43-1-4277-39464 Fax: +43-1-4277-39459
__
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] shell and shell.exec on Windows
Thanks Gabor,
system() indeed would be the answer, but it does not solve my problem
because of some inconsistencies in WindowsXP.
I will explain the story, because perhaps it can help somebody else to
avoid wasting time.
On my machine, when I doubleclick an .xlsm file, it is opened in Excel
2007. .xls files are opened in Excel 2003.
shell.exec("file.xls") and shell.exec("file.xlsm")
also open the files in Excel 2003 and Excel 2007 respectively.
system() does not invoke a shell, so I need to find the application
associated with Excel to create a string with the name
of the application and the name of the file to open.
Then, something like
system("\"c:\\mypath\\CorrectVersionOfExcel.exe\"
\"c:\\mydir\\myexcelfile.xlsm\"")
should work (and run the program invisibly)
There are two helpful shell commands in WinXP
ASSOC and FTYPE
ASSOC .xls
.xls=Excel.Sheet.8
ASSOC .xlsm
.xlsm=Excel.SheetMacroEnabled.12
ftype Excel.Sheet.8
Excel.Sheet.8="C:\Program Files\Microsoft Office\OFFICE11\EXCEL.EXE" /e
ftype Excel.SheetMacroEnabled.12
Excel.SheetMacroEnabled.12="C:\PROGRA~2\MICROS~2\OFFICE11\EXCEL.EXE" /e
So despite the fact that doubleclicking .xlsm files or using
"shell.exec" opens Excel 2007
the application reported by assoc and ftype for .xlsm files is Excel 2003.
Gabor Grothendieck wrote:
> The system() function has an invisible= argument. The ryacas package
> uses system() to run yacas. See the runYacas() and
> yacasInvokeString() functions in yacas.R for examples:
>http://ryacas.googlecode.com/svn/trunk/R/yacas.R
>
> On 8/11/07, Erich Neuwirth <[EMAIL PROTECTED]> wrote:
>> I have an Excel workbook "MyWorkbook.xls" containing an Auto_Open macro
>> which I want to be run from R.
>>
>> shell.exec("MyWorkbook.xls")
>> does that.
>>
>> shell("start MyWorkbook.xls")
>> also runs it.
>>
>> In both cases, the Excel window is visible on screen when Excel is started.
>> Is there a way of opening the sheet with a hidden Excel window?
>> start has some parameters (e.g. /MIN), which should allow this, but
>> shell("start /MIN MyWorkbook.xls")
>> also starts Excel visibly.
>>
>>
>>
>> --
>> Erich Neuwirth, University of Vienna
>> Faculty of Computer Science
>> Computer Supported Didactics Working Group
>> Visit our SunSITE at http://sunsite.univie.ac.at
>> Phone: +43-1-4277-39464 Fax: +43-1-4277-39459
>>
>> ______
>> R-help@stat.math.ethz.ch mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
>
--
Erich Neuwirth, University of Vienna
Faculty of Computer Science
Computer Supported Didactics Working Group
Visit our SunSITE at http://sunsite.univie.ac.at
Phone: +43-1-4277-39464 Fax: +43-1-4277-39459
__
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[R] shell and shell.exec on Windows
I have an Excel workbook "MyWorkbook.xls" containing an Auto_Open macro
which I want to be run from R.
shell.exec("MyWorkbook.xls")
does that.
shell("start MyWorkbook.xls")
also runs it.
In both cases, the Excel window is visible on screen when Excel is started.
Is there a way of opening the sheet with a hidden Excel window?
start has some parameters (e.g. /MIN), which should allow this, but
shell("start /MIN MyWorkbook.xls")
also starts Excel visibly.
--
Erich Neuwirth, University of Vienna
Faculty of Computer Science
Computer Supported Didactics Working Group
Visit our SunSITE at http://sunsite.univie.ac.at
Phone: +43-1-4277-39464 Fax: +43-1-4277-39459
__
R-help@stat.math.ethz.ch mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] R-excel
The R(D)COM server (contaiong the RExcel Excel addin) and/or the rcom package allow (among other things) to select a range in Excel and directly transfer it to R as an array or as a dataframe. It only works on Windows with Excel and R installed. More information on these packages is available at http://rcom.univie.ac.at Erika Frigo wrote: > Good morning to everybody, > I have a problem : how can I import excel files in R??? > > thank you very much > > > Dr.sa. Erika Frigo > Università degli Studi di Milano > Facoltà di Medicina Veterinaria > Dipartimento di Scienze e Tecnologie Veterinarie per la Sicurezza Alimentare > (VSA) > > Via Grasselli, 7 > 20137 Milano > Tel. 02/50318515 > Fax 02/50318501 > [[alternative HTML version deleted]] > > > > > > __ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. -- Erich Neuwirth, Didactic Center for Computer Science University of Vienna Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-9394 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] accessing unexported functions
I need to access some internal function of a package temporarily. These functions normally that are not visible outside of the package. I know the MyPackage:::myfunction mechanism, but that does not solve my problem. Instead, I need to add the "internal namespace" of the package to the search path, then I can run a few commands with these functions available, and then the internal namespace should become invisible again. Is there a code example to achieve this? -- Erich Neuwirth, Didactic Center for Computer Science University of Vienna Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-9394 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Centering a legend
Using layout I am plotting 5 boxplots on top of each other, all of them using colored boxes in different order. In a 6th box below I want to give the legend explaining the box colors, and I want this box to be centered in an otherwise empty plot. I am creating this plot by plot(0:1,0:1,type="n") Is there an easy way to find the parameters x and y for calling legend which will center the legend in this plot? -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-39459 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] importing excel-file
I am coming in late in this discussion because I am away from home and do not read my email regularly. Here are my few cents. If you are working on Windows and have Excel installed, an easy way of transferring data between R and Excel is my RExcel package which ships with Thomas Baier's R(D)COM package, and also can be used with Thomas' rcom package. rcom is available as a package from CRAN and can be installed from the package menu in RGui. R(D)COM is available from CRAN in section Other. You have to download it and run the installer program (and you need admin rights to be able to do this). If you use rcom, you should have R and Excel open simultaneously. Then, just select a range in Excel, right-click any cell in the range, and click on "Put Dataframe" in the context menu that pops up. Your data are immediately transferred to R as a dataframe (you choose that name, or RExcel uses the Excel file name or the worksheet name). The main difference between the R(D)COM server and the rcom package is that with rcom RGui is visible, so you can switch between R and Excel. With R(D)COM, you have R in the background. There is a mailing list, for all rcom and R(D)COM related questions, you can subscribe by way of the rcom web server, http://rcom.univie.ac.at (the link to the mailing list is there). Schmitt, Corinna wrote: > Dear R-experts, > > It is a quite stupid question but please help me. I am very confuced. I > am able to import normal txt ant mat-files to R but unable to import > .xls-file > > I do not understand the online help. Can please anyone send me the > corresponding command lines? The .xls-file is attached. In my file we > use commas for the decimal format (example: 0,712), changes might be > needed. > > Thanks, Corinna > > > > > > __ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. -- Erich Neuwirth, Didactic Center for Computer Science University of Vienna Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-9394 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Integration + Normal Distribution + Directory Browsing Processing Questions
Nils Hoeller wrote: > > for example. > > BUT what can I do for dynamic m and sd? > I want something like integrate(dnorm(,0.6,0.15),0,1), with the first > dnorm parameter open for the > integration but fixed m and sd. integrate(function(x)dnorm(x,0.1,1.2), 0, 1) is a way of "fixing" additional parameters. -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-39459 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Calling R functions in Delphi
R(D)COM available from CRAN (section Other) gives you R as a COM server. If Delphi can act as a COM client (which I think is true), you can access R directly from within your program without the need to write files. > Anna Belova wrote: >> Hello All, >> >> We would like to call quantile() function from the R-package STATS in a >> Delphi program. If this is possible, could anyone provide us with an >> example? -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-39459 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] strange algorithm needed
1+(0:16 %% 3) is a "purely arithmetic" solution Dimitris Rizopoulos wrote: > probably you want to use the 'length' argument of rep(), e.g., > > rep(1:3, length = 17) > > > I hope it helps. > > Best, > Dimitris -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-39459 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Bitmap file size problems
I am experiencing some problems with the windows graphics device and bitmaps. (Everything is done in R 2.3.1 on Windows XP) As an example, I will use windows(3,2) plot(1:10) It is not a pretty or meaningful graph, but it demonstrates the problem. savePlot(file="test",type="bmp") creates a bitmap file of size 303x207 which is somewhat strange because it seems to use slightly different values for pixels per inch horizontally and vertically. (By the way, in my version of R 2.4.0alpha, the bitmap has size 303x206) The documentation warns that the graphics devices use pixel per inch values reported by Windows, and that might be unreliable. In my case, windows(3,2,xpinch=96) plot(1:10) savePlot(file="test",type="bmp") produces the same image (of the same size) as before, so Windows seems to report 96 for the pixels per inch value. The next result surprised me: windows(3,2,xpinch=96,ypinch=96) plot(1:10) savePlot(file="test",type="bmp") produces a square graphics window and a bitmap file of size 303x303. (In R 2.4.0 alpha the size is 303x302). In fact, when ypinch is given, height seems to be ignored and the graphics windows height:width ratio is the ypinch:xpinch ratio from the call to windows. windows(10,1,xpinch=96,ypinch=192) will produce a window which is higher than wide, which is not what I expected after reading the docs. (This also is true in R 2.4.0 alpha) The alternative solution is to use dev2bitmap. windows(3,2) plot(1:10) dev2bitmap(file="test.bmp",type="bmp256",width=3,height=2,res=100) produces a bitmap of size 300x200 which is exactly what is to be expected. In this bitmap, however, the leftmost part of the image displayed in R's graphics window is cut off. What is the best way of creating bitmaps of a given size containing the full contents of an R graphics window? -- Erich Neuwirth, Didactic Center for Computer Science University of Vienna Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-9394 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [Rcom-l] GARCH(1,1) optimization with R
This is not the right list for your question. Question on how to use R and R's libraries should be posted to R-help@stat.math.ethz.ch Patrick Zhang wrote: > Hello all, > > Trying to implement GARCH(1,1) with ASP.NET <http://asp.net/> and > VB.NET<http://vb.net/>. > It involves optimization of a three-variate function with some constraints. > Learned from Wilmott.com <http://wilmott.com/> that R might be able to > do it > but have no idea how. Could anyone help me out please. Thanks in advance. > > Additional info: > 1. Tried calling Excel Solver from within my web application - it works > fine > except that Excel.exe won't go away from task manager although the Quit() > method has been used; > 2. Also tried running (Process.Start) a separate console application that > calls Excel Solver from the code, getting error message: The application > failed to initialize properly (0xc142). > Any thought of an alternative? > > Best wishes, > Pat > > > > > ___ > Rcom-l mailing list > [EMAIL PROTECTED] > http://mailman.csd.univie.ac.at/mailman/listinfo/rcom-l > Wiki at http://rcom.csd.univie.ac.at/rcomwiki/ -- Erich Neuwirth, Didactic Center for Computer Science University of Vienna Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-9394 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Postscript fonts
Thanks,
The following piece of code demonstrates a problem I still have.
pdf(file="fonttest.pdf",fonts=c("Helvetica"))
plot(1:10,main="",xlab="")
par(family="Helvetica",font=1)
title(main="Helvetica")
par(family="Helvetica",font=2)
title(sub="Helvetica-Bold")
par(family="Helvetica",font=3)
title(xlab="Helvetica-Oblique")
dev.off()
The font= parameter seems not to be respected.
I do not get bold or italics.
What am I doing wrong or not understand here?
My original problem was that I had not understood that the
fonts parameter is absolutely necessary when opening the device
when one wants to use par(family= ).
BTW, this is R 2.3.1 on Windows XP.
Prof Brian Ripley wrote:
> > On Sat, 5 Aug 2006, Erich Neuwirth wrote:
> >
>> >> How can I find out what fonts are available for
>> >> par(family=
>> >> for the postscript device?
> >
> > This is dynamic: for the current value
> >
>> >> names(postscriptFonts())
> > [1] "serif""sans" "mono"
> > [4] "symbol" "AvantGarde" "Bookman"
> > [7] "Courier" "Helvetica""Helvetica-Narrow"
> > [10] "NewCenturySchoolbook" "Palatino" "Times"
> > [13] "URWGothic""URWBookman" "NimbusMon"
> > [16] "NimbusSan""URWHelvetica" "NimbusSanCond"
> > [19] "CenturySch" "URWPalladio" "NimbusRom"
> > [22] "URWTimes" "ComputerModern"
"ComputerModernItalic"
> > [25] "Japan1" "Japan1HeiMin" "Japan1GothicBBB"
> > [28] "Japan1Ryumin" "Korea1" "Korea1deb"
> > [31] "CNS1" "GB1"
> >
> > and for more details see the current R-News (6/2).
--
Erich Neuwirth, University of Vienna
Faculty of Computer Science
Computer Supported Didactics Working Group
Visit our SunSITE at http://sunsite.univie.ac.at
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[R] Postscript fonts
How can I find out what fonts are available for par(family= for the postscript device? -- Erich Neuwirth, Didactic Center for Computer Science University of Vienna Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-9394 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Monospaced fonts in legends
Is there a way of using monospaced fonts in legends in a plot, but still using standard proportionally spaced fonts for all the titles? -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-39459 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Standard Deviation Distribution
[EMAIL PROTECTED] wrote:
> > sddist
>>> > >>
> > function(s,n) {
> > sig2 <- n*s*s/(n-1)
> > 2*(n/(2*sig2))^((n-1)/2) / gamma((n-1)/2) * exp(-n*s*s/(2*sig2)) *
s^(n-2)
> > }
There is another way using more statistical knowledge:
Building on functions already available in R
one may note that the easiest way of defining
sddist is
sddist<-function(s,n) dchisq(n*s^2,n-1)*2*n*s
Plotting this function for n in seq(2,12,2)
reproduces the graph in Mathworld.
The idea is the following:
given a random variable x with a chisquare distribution with
df n-1, s can be defined by s=sqrt(x/n) and therefore
x=n*s^2
If F and G are the cumulative distribution functions of x and s
and f and g are the density functions of x and s, then we have
G(s)=F(n*s^2) and therefore
g(s)=f(n*s^2)*2*n*s
--
Erich Neuwirth, University of Vienna
Faculty of Computer Science
Computer Supported Didactics Working Group
Visit our SunSITE at http://sunsite.univie.ac.at
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[R] namespace question
I need to modify the function "loess.smooth" from package stats to accept an additional weight parameter. I found the places where I need to change things, but there is a problem remaining (in R 2.2.1). loess.smooth contains the call fit <- simpleLoess(y, x, w, span, degree, FALSE, FALSE, normalize=FALSE, "none", "interpolate", control$cell, iterations, control$trace.hat) Since simpleLoess is not exported from stats, I need to change this to fit <- stats:::simpleLoess(y, x, w, span, degree, FALSE, FALSE, Furthermore, simpleLoess does z <- .C(R_loess_ifit, Changing this to z <- .C(stats:::R_loess_ifit, solves the problem in R 2.3.0, but not in R 2.2.1 Is there an easy solution for 2.2.1 also? -- Erich Neuwirth Institute for Scientific Computing and Didactic Center for Computer Science University of Vienna phone: +43-1-4277-39464 fax: +43-1-4277-39459 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] bivariate weighted kernel density estimator
Dear Roger,
thanks for the suggestion.
That is the solution, just modifying kde2d.
I did it slightly differently.
Since I have up to 20 points,
diag(Z) from your code becomes too large.
But since t(matrix(dnorm(ay),n,nx)) only needs to be
multiplied with the weights rowwise and
* applied to vectors repeats the shorter vector cyclically,
Z * t(matrix(dnorm(ay)))
does the same thing as
diag(Z) %*% t(matrix(dnorm(ay),n,nx))
and does not need too much memory.
I also have to add an excuse:
In the original posting I stated that I need WEIGHTED kernel
density estimators in the subject,
but did not mention weighted in the text.
That was imprecise and probably therefore I mislead some list
participants.
Erich
Roger Bivand wrote:
> kde2d.G is just kde2d with two changes - it takes the grid from the GRASS
> region, and it allows weights in the Z argument. Please have a look at
the
> code and see if you can't simply retro-fit it to kde2d:
>
> if (!is.null(Z)) {
> if (length(Z) != nx)
> stop("Data vectors must be the same length")
> z1 <- matrix(dnorm(ax), n, nx) %*% diag(Z) %*%
t(matrix(dnorm(ay),
> n, nx))/(nx * h[1] * h[2])
> z <- z1/z
> }
>
> This was put into the function to make a very crude kernel density
> interpolator with the grid cell values scaled in the units of the Z
> variable.
>
--
Erich Neuwirth, University of Vienna
Faculty of Computer Science
Computer Supported Didactics Working Group
Visit our SunSITE at http://sunsite.univie.ac.at
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[R] bivariate weighted kernel density estimator
Is there code for bivariate kernel density estimation? For bivariate kernels there is kde2d in MASS kde2d.g in GRASS KernSur in GenKern (list probably incomplete) but none of them seems to accept a weight parameter (like density does since R 2.2.0) -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-39459 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] rownames, colnames, and date and time
I noticed something surprising (in R 2.2.1 on WinXP)
According to the documentation, rownames and colnames are character vectors.
Assigning a vector of class POSIXct or POSIXlt as rownames or colnames
therefore is not strictly according to the rules.
In some cases, R performs a reasonable typecast, but in some other cases
where the same typecast also would be possible, it does not.
Assigning a vector of class POSIXct to the rownames or names of a
dataframe creates a reasonable string representation of the dates (and
possibly times).
Assigning such a vector to the rownames or colnames of a matrix produces
rownames or colnames consisting of the integer representation of the
date-time value.
Trying to assign a vector of class POSIXlt in all cases
(dataframes and matrices, rownames, colnames, names)
produces an error.
Demonstration code is given below.
This is somewhat inconsistent.
Perhaps a reasonable solution could be that the typecast
used for POSIXct and dataframes is used in all the other cases also.
Code:
mymat<-matrix(1:4,nrow=2,ncol=2)
mydf<-data.frame(mymat)
mydates<-as.POSIXct(c("2001-1-24","2005-12-25"))
rownames(mydf)<-mydates
names(mydf)<-mydates
rownames(mymat)<-mydates
colnames(mymat)<-mydates
print(deparse(mydates))
print(deparse(rownames(mydf)))
print(deparse(names(mydf)))
print(deparse(rownames(mymat)))
print(deparse(colnames(mymat)))
mydates1<-as.POSIXlt(mydates)
# the following lines will not work and
# produce errors
rownames(mydf)<-mydates1
names(mydf)<-mydates1
rownames(mymat)<-mydates1
colnames(mymat)<-mydates1
--
Erich Neuwirth
Institute for Scientific Computing and
Didactic Center for Computer Science
University of Vienna
phone: +43-1-4277-39464 fax: +43-1-4277-39459
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[R] functional programming question
Many functional programming languages have a metafunction which does the following: it has two arguments, a function and a list of objects, all of the same type. The argument function itself has two arguments of the same type as all the list objects, and the result of this function also is of the same type. then metafunction(f,list(x1,x2,xn)) produces f(x1,f(x2,f(x3,,f(xn-1,xn)))..) Does R have such a function, or do I need to code it myself? In Scheme (Mathematica), this metafunction is called fold (Fold). -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-39459 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] html excel file
On Do, 19.01.2006, 10:38, Stefan Semmeling wrote: > hallo, > > i have a problem reading in the above mentioned kind of a file. One way of transferring data between R and Excel is using the RExcel package contained in R(D)COM server available from CRAN in category Other. The package rcom (available from CRAN) can turn R into a COM server for Excel and with a little bit of VBA programming it is possible to transfer data both ways also. __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] dataframes with only one variable
Subsetting from a dataframe with only one variable returns a vector, not a dataframe. This seems somewhat inconsistent. Wouldn't it be better if subsetting would respect the structure completely? v1<-1:4 v2<-4:1 df1<-data.frame(v1) df2<-data.frame(v1,v2) sel1<-c(TRUE,TRUE,TRUE,TRUE) > df1[sel1,] [1] 1 2 3 4 > df2[sel1,] v1 v2 1 1 4 2 2 3 3 3 2 4 4 1 -- Erich Neuwirth Institute for Scientific Computing and Didactic Center for Computer Science University of Vienna phone: +43-1-4277-39464 fax: +43-1-4277-39459 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] convolution of the double exponential distribution
Mathematica says
Assuming[q ∈ Reals && q > 0, Integrate[(q + x)^n*Exp[-2*x], {x, 0,
Infinity}]]
2^(-1 - n)*Exp[2*q]*Gamma[1 + n, 2*q]
and 2-argument Gamma is the incomplete Gamma function
(integration starting at 2*q)
Duncan Murdoch wrote:
> On 12/22/2005 7:56 PM, Bickel, David wrote:
>
>>Is there any R function that computes the convolution of the double
>>exponential distribution?
>>
>>If not, is there a good way to integrate ((q+x)^n)*exp(-2x) over x from
>>0 to Inf for any value of q and for any positive integer n? I need to
>>perform the integration within a function with q and n as arguments. The
>>function integrate() is giving me this message:
>>
>>"evaluation of function gave a result of wrong length"
>
>
> Under the substitution of y = q+x, that looks like a gamma integral.
> The x = 0 to Inf range translates into y = q to Inf, so you'll need an
> incomplete gamma function, such as pgamma. Be careful to get the
> constant multiplier right.
>
> Duncan Murdoch
>
> __
> R-help@stat.math.ethz.ch mailing list
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> PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
>
>
--
Erich Neuwirth, University of Vienna
Faculty of Computer Science
Computer Supported Didactics Working Group
Visit our SunSITE at http://sunsite.univie.ac.at
Phone: +43-1-4277-38624 Fax: +43-1-4277-9386
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[R] Hiding a function from ls()
I need to define a small helper function which should not be listed by ls(). What is the best and cleanest way of achieving this? -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] array indices in synced vectors
Let us start with the following definitions xxx<-rep(c(1,2),times=5) yyy<-rep(c(1,2),each=5) a<-c(11,12) b<-matrix(1:4,2,2) a[xxx] produces [1] 11 12 11 12 11 12 11 12 11 12 b[xxx,yyy] produces [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] [1,]111113333 3 [2,]222224444 4 [3,]111113333 3 [4,]222224444 4 [5,]111113333 3 [6,]222224444 4 [7,]111113333 3 [8,]222224444 4 [9,]111113333 3 [10,]222224444 4 so it does an implicit "outer" for the indices in xxx and yyy. sapply(1:length(xxx),function(x)b[xxx[x],yyy[x]]) does what I need and produces [1] 1 2 1 2 1 4 3 4 3 4 Is there a function taking xxx,yyy, and b as arguments producing the same result? Essentially, I am asking for a version of lapply and/or sapply which works with functions of more than one argument and takes the iteration arguments as vectors or lists of equal length. -- Erich Neuwirth, Didactic Center for Computer Science University of Vienna Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39902 Fax: +43-1-4277-9399 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] ScieViews installer
Thank you for your help.
The library directory contained some very strangely named
subdirectories, file3132 and similarly.
After removing these and vereything related to SciViews
I was able to install SciViews.
Looking back I seem to remember that form time to time
these strange directories appear and I do not understand
where they come from.
Could it be a timing issue, i.e. Windows trying to remove
a directory too early? I remember similar problems with
temporary files not being deletable by Excel.
Prof Brian Ripley wrote:
> On Sat, 7 May 2005, Erich Neuwirth wrote:
>> bundle 'SciViews' successfully unpacked and MD5 sums checked
>> Error in sprintf(gettext("unable to move temp installation '%d' to
>> '%s'"), :
>>use format %s for character objects
>>
>> how can I solve this problem?
>
>
> Well, use R-patched where that exact problem goes away, but that is not
> the problem that needs solving.
>
> The underlying cause is a problem on your Windows file system. Do you
> have a version of SciViews left over that Windows cannot remove?
>
> I've just tested this, and it works for me even in 2.1.0.
>
--
Erich Neuwirth, University of Vienna
Faculty of Computer Science
Didactic Center for Computer Science
Visit our SunSITE at http://sunsite.univie.ac.at
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[R] ScieViews installer
I tried to install SciViews in R 2.1.0 (on Windows)
and on all machines I get:
bundle 'SciViews' successfully unpacked and MD5 sums checked
Error in sprintf(gettext("unable to move temp installation '%d' to
'%s'"), :
use format %s for character objects
how can I solve this problem?
--
Erich Neuwirth, University of Vienna
Faculty of Computer Science
Didactic Center for Computer Science
Visit our SunSITE at http://sunsite.univie.ac.at
Phone: +43-1-4277-39464 Fax: +43-1-4277-39459
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[R] boxplot in extreme cases
I noticed the following: the 2 datasets rep(c(0,1,2),c(10,20,40)) and rep(c(0,1,2),c(10,40,20)) produce identical boxplots despite the fact that the medians are different. The reason is that the median in one case coincides with the first quartile, and in the second case with the third quartile. Is there a recommended way of displaying the median visibly in these cases? Setting notch=TRUE displays the median, but does look strange. __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] one more Rcmdr problem
I did experience the same problem. After installing R 2.0.0 patched and downloading the source for Rcmdr_0.99-12 from John Fox's Web page http://socserv.socsci.mcmaster.ca/jfox/Misc/Rcmdr/ and recompiling the package it now works. Ctrl-C, Ctrl-X, and Ctrl-V, in the text boxes of Rcmdr now work. Adrian Dusa wrote: Hello, I'm using R 2.0.0 with the latest Rcmdr package installed from CRAN, on Windows XP Professional. When trying to copy some commands or results, either from the upper or lower text window, this causes Rcmdr to crash: "R for Windows GUI front-end has encountered a problem and needs to close" Did anyone have the same problem? I don't think it's my system, as it happened to reinstall my Windows just a few days ago, and the same problem occurred in the former one. Regards, Adrian Adrian Dusa Romanian Social Data Archive 1 Schitu Magureanu Bd. 050025 Bucharest sector 5 Tel. +40 21 3126618\ +40 21 3153122/ int.101 -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386 __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] as.complex
as.complex("2+1i") -> 2+1i
as.complex("2+i") -> NA
Does somebody have a modified version of as.complex
which does the coercion in a less strict manner and
produces a complex number also for strings like the
second example?
Perhaps it would even make sense to change the behavior
of as.complex to handle the second case.
After all, this is an established way of writing
complex numbers in some programming tools
able to deal with complex numbers.
--
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Re: [R] How to do this "combination" ?
combinat<-function(els,len){
if (len==1) (return(as.character(els)))
else return(as.vector(t(outer(combinat(els,len-1),as.character(els),
function(x,y)paste(x,y,sep="")
}
combinat(1:2,3)
does what you want
[EMAIL PROTECTED] wrote:
Thanks David first.
Probably, David misunderstood my points.
source vector = (1,2)
the length of the target vector = 3
My expected "complete" outputs should be:
111, 112, 121, 122, 211, 212, 221, 222.
sample(c(1,2),3,replace=TRUE) just gives me one "randomly sampled"
combination at a time. However, I need the whole list displayed above at a
time.
Rui
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Re: [R] factor always have type integer
The simple answer to my problem (are the values of a vector numeric or not) is is.numeric, and that is enough for what I need right now. But this way I do not get an answer discriminating between integers and and doubles. What is the canonical way of getting the type of the values of a vector? Is there a better way than valtype<-function(x) typeof(ifelse(is.factor(x),levels(x),x)) -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386 __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] factor always have type integer
The function I need is
valtype<-function(x)
typeof(ifelse(is.factor(x),levels(x),x))
It is easy enough to write.
Are there any other special cases where the values
and the storage mode differ?
The background for all this is that I am transferring data
from R to Excel with VBA and I have to handle numbers
and strings differently. So I need to check for the type
of values I will get returned before I do the transfer.
Therefore, I would like to know if there are other types of variables
(besides factors) which give a misunderstandable answer about the type
of their values when asked typeof.
Prof Brian Ripley wrote:
On Wed, 8 Sep 2004, Erich Neuwirth wrote:
typeof applied to a factor always seems to return "integer",
independently of the type of the levels.
typeof is telling you the internal structure. From ?factor
'factor' returns an object of class '"factor"' which has a set of
integer codes the length of 'x' with a '"levels"' attribute of
mode 'character'.
(Despite that, we don't enforce this and people have managed to create
factors with non-integer numeric codes.)
Now ?typeof says
'typeof' determines the (R internal) type or storage mode of any
object
and that is the "integer" as the codes are stored in an INTSXP.
BTW, factors were an internal type long ago, and were one of the two
unnamed types which appear in output from memory.profile().
This has a strange side effect.
It's a very well documented feature of data.frame, as others have
pointed out.
When a variable is "imported" into a data frame,
its type changes.
character variables automatically are converted
to factors when imported into data frames.
Here is an example:
> v1<-1:3
> v2<-c("a","b","c")
> df<-data.frame(v1,v2)
> typeof(v2)
[1] "character"
> typeof(df$v2)
[1] "integer"
It is somewhat surprising that
the types of v2 and df$v2 are different.
the answer is to do
levels(df$v2)[df$v2]
but that is somewhat involved.
Should the types not be identical, and typeof applied to factors
return the type of the levels?
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[R] factor always have type integer
typeof applied to a factor always seems to return "integer",
independently of the type of the levels.
This has a strange side effect.
When a variable is "imported" into a data frame,
its type changes.
character variables automatically are converted
to factors when imported into data frames.
Here is an example:
> v1<-1:3
> v2<-c("a","b","c")
> df<-data.frame(v1,v2)
> typeof(v2)
[1] "character"
> typeof(df$v2)
[1] "integer"
It is somewhat surprising that
the types of v2 and df$v2 are different.
the answer is to do
levels(df$v2)[df$v2]
but that is somewhat involved.
Should the types not be identical, and typeof applied to factors
return the type of the levels?
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Re: [R] Permutations
Perhaps what you want might better be described as ordered partitions? Is what you want the following: We study sequences of length 12 and divide them in 4 segments position 1 2 3, position 4 5 6, position 7 8 9, position 10 11 12, Find all permutation sequences of the numbers 1 to 12 with the property that all segment sequences are monotonically increasing. I think that produces what you need. Since the segments are ordered, you avoid intra-block permutations. If that is what you want, writing a recursive function should not be too hard. Jordi Altirriba Gutiérrez wrote: Dear R users, I’m a beginner user of R and I’ve a problem with permutations that I don’t know how to solve. I’ve 12 elements in blocks of 3 elements and I want only to make permutations inter-blocks (no intra-blocks) (sorry if the terminology is not accurate), something similar to: 1 2 3 | 4 5 6 | 7 8 9 | 10 11 12 --1st permutation 1 3 2 | 4 5 6 | 7 8 9 | 10 11 12 NO - - 3 2 1 | 4 5 6 | 7 8 9 | 10 11 12 NO - - - 1 2 4 | 3 5 6 | 7 8 9 | 10 11 12 YES-2nd permutation -- 4 5 6 | 1 2 3 | 7 8 9 | 10 11 12 YES-3rd permutation - - - - - - 4 5 6 | 2 1 3 | 7 8 9 | 10 11 12 NO - - Thanks for your time, Jordi Altirriba Ph D student Hospital Clinic – Barcelona - Spain MSN Motor. http://motor.msn.es/researchcentre/ __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386 __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] RGui Titlebar
In the windows version (RGui), is there a way to set the text displayed in the titlebar of the R window? When I have 2 instances of RGui running, it would be helpul if the titlebar could help to understand which is which. -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386 __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] [R-pkgs] R (D)COM server, new release
Today we uploaded a new release of the R (D)COM server for Windows to CRAN. It is release 1.35 The software is much more stable, and there are quite a few improvements. Excerpts from the NEWS file: RServerManager has been added. This provides a repository for R COM servers. See the samples and the additional documentation Partial rewrite of the code for SetSymbol() and GetSymbol(). Now arrays of VARIANTs are supported to some degree. This makes the COM server accessible to many scripting languages Sample usage for JScript, Python, and VBScript added New tools library provided for Excel to remotely access COM server without the need for local installation The software should appear on CRAN in the "Other" section within the next few days. Thomas Baier Erich Neuwirth -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386 ___ R-packages mailing list [EMAIL PROTECTED] https://www.stat.math.ethz.ch/mailman/listinfo/r-packages __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] R help in Firefox on Windows XP
Thank you Brian, Installing 0.8 first and then upgrading solved the problem. I noticed that installing 0.9 from scratch creates a registry key [HKEY_LOCAL_MACHINE\SOFTWARE\mozilla.org\Mozilla] "CurrentVersion"="1.7" Installing 0.8 creates [HKEY_LOCAL_MACHINE\SOFTWARE\mozilla.org\Mozilla] "CurrentVersion"="1.6" and upgrading to 0.9 afterwards does not change this entry. This might be the reason. Prof Brian Ripley wrote: Works for me. Did it work with Firefox 0.8? (I upgraded from 0.8.) I would try 0.8 and then upgrade. On Thu, 17 Jun 2004, Erich Neuwirth wrote: I had to reinstall my machine, so I installed Firefox 0.9 as browser I am using WinXP and R 1.9.1 beta. Now search in R html help does not work. I checked that the Java VM is working correctlt, Sun's test site says my installation is OK. Firefoxalso tells me that Applet Searchengine loaded Applet Searchengine started it just does not find anything. Does anybody know how to solve this? Prof Brian Ripley wrote: Works for me. Did it work with Firefox 0.8? (I upgraded from 0.8.) I would try 0.8 and then upgrade. On Thu, 17 Jun 2004, Erich Neuwirth wrote: I had to reinstall my machine, so I installed Firefox 0.9 as browser I am using WinXP and R 1.9.1 beta. Now search in R html help does not work. I checked that the Java VM is working correctlt, Sun's test site says my installation is OK. Firefoxalso tells me that Applet Searchengine loaded Applet Searchengine started it just does not find anything. Does anybody know how to solve this? __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] R help in Firefox on Windows XP
I had to reinstall my machine, so I installed Firefox 0.9 as browser I am using WinXP and R 1.9.1 beta. Now search in R html help does not work. I checked that the Java VM is working correctlt, Sun's test site says my installation is OK. Firefoxalso tells me that Applet Searchengine loaded Applet Searchengine started it just does not find anything. Does anybody know how to solve this? Erich __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Hankel Matrix
hankel<-function(seq){
outer(1:((length(seq)+1)/2),1:((length(seq)+1)/2),
function(x,y) seq[x+y-1])
}
will take a sequence of odd length and ouput the corresponding
square Hankel matrix.
Fred J. wrote:
> Hello
> is there a function in R to generate Hankel Matrix?
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Re: [R] New unique name
Since I have not been precise enough, let me explain in more detail. I am executing some R code in the COM server. For making function calls with parameters existing as ranges in Excel, I need to assign values for the arguments of the function call to temporary R variables. This is the only way of transferring large matrices quickly from Excel to R. Then, I construct a string which is the function call to be executed. The string contains the names of the newly created R variables for the function arguments. This string then is sent to R and executed as a command. Therefore, I need names which do not get in conflict with anything defined at the moment, because these names have to hold my transferred matrices and should not change anything that exists at that moment. I do some funny stuff with a strange word and the date and the clock at the moment, but I would like a cleaner solution. What is an easy way of doing this? All the Linux based solutions will not work, since this for the RExcel project. Erich Neuwirth __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] New unique name
In some languages there is a function gensym() which returns a new unique name (in the current environment). This is quite helpful when one has to do temporary assignments. I could not find such a function in R. Is there one? -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386 __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Solving Matrices
On April 15th, Elizabeth wrote: (or x <- matrix(data=c(7, -5, 6, -7, 2, -3, 10, 9, -5, 4, -2, 2, 8, -9, 7, 15), nrow=4, ncol=4) qr(x)$rank gives the rank qr.R(qr(x)) gives the R part (an upper triangular matrix similar to the one produced by Gauss elimination). With the given matrix, we get rank 3, but the last row of qr.R(qr(x)) is not 0 due to rounding errors. -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386 __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] Execute function at startup
It would be convenient to have something like Rgui runfist="myfunction()" in Windows. The reason: AFAIK Rgui does not accept piped input (RGui < myfile.R does not seem to work). A solution could be to put a few fuctions in Rprofile and then give the name for one of these functions to be executed at startup as a command line parameter to Rgui. Can something like this be done? -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386 __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] Windows startup question
I would like to be able to double click on an R source file and by that start R and have the file sourced in R. I am using WinXP Pro. So I created an association for file type R and tye following Run action: "C:\Program Files\R\rw1090beta\bin\Rgui.exe" R_PROFILE=%1 I have an R file with the following lines at the beginning. library(vcd) votes<-array(0,10*7*9*2) dim(votes)<-c(10,7,9,2) Double clicking this file (in Windows Explorer) starts R and then produces the following output. Attaching package 'vcd': The following object(s) are masked from package:base : print.summary.table summary.table Error in dim(votes) <- c(10, 7, 9, 2) : cannot do complex assignments in base namespace So it seems the first 2 lines are executed, the vector votes exists, but cannot be redimensioned as an array. Can i make what I would like fully functional? -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386 __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] italian keyboard and ~ symbol
Before using the sequence
+ Num1 + Num2 + Num6 +
one has to make sure that the numeric keyboard is in NumLock mode,
not in cursor mode.
If it is in cursor mode, this trick will not work
(at least it does not on my machine)
Federico Calboli wrote:
On Tue, 2004-03-30 at 11:48, Henrik Bengtsson wrote:
+ Num1 + Num2 + Num6 + where Num1, Num2 &
Num6 are 1, 2 & 6 on the *numeric keyboard* (not the ones above the
letter keys) will produce ASCII character 126 ("~", tilde) on my WinXP
Pro in both Rterm and Rgui for R v1.8.1. Do you get anything at all?
Does it work in any other Windows applications or dialogs (you
mentioned Word)? What about + Num6 + Num5 +
(should give "A")?
Rather annoyingly it does not work.
You could also consider remapping your keyboard, i.e. for some
physical key replace a "useless/never used" character with "~"
(tilde). Some initial links can be found at
http://www.maths.lth.se/help/windows/keyboard/.
It appears it is the only option.
Regards,
Federico
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Re: [R] Build problems on Windows with fpTeX and MiKTeX
Things work again. I did a clean build for r-devel, getting a fresh source tree, and now things work again (with fpTeX). I also build abind and adapt to check if packages can be build from source on Windows. Both worked. I did these two packages because abind is an "R code only" package and adapt includes C and Fortran code. -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386 __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] Build problems on Windows with fpTeX and MiKTeX
Recently,
I upgraded MiKTeX to the latest versions, and since then there are
problems when I try to build R and/or R packages.
I tried to build R 1.9.0 beta and R 1.8.1 patched
I am running Windows XP Pro, SP 1
MikTeX version is
This is e-TeX, Version 3.141592-2.1 (MiKTeX 2.4)
(preloaded format=latex 2004.3.27)
fpTeX version is
This is e-TeXk, Version 3.141592-2.1 (Web2c 7.5.2)
(format=latex 2004.3.23) 27 MAR 2004 21:58
With MiKTeX, it is not possible any more
do build documentation either for R itself or for packages,
I get the following error
! LaTeX Error: Command \middle already defined.
Or name \end... illegal, see p.192 of the manual.
See the LaTeX manual or LaTeX Companion for explanation.
Type H for immediate help.
...
l.45 \newlength{\middle}
With fpTeX, I can build R itself, but when I try to build packages,
I get
(c:/Program Files/TeXLive/texmf/tex/latex/graphics/color.sty
Package: color 1999/02/16 v1.0i Standard LaTeX Color (DPC)
(c:/Program Files/TeXLive/texmf/tex/latex/texlive/color.cfg
File: color.cfg 2001/08/31 v1.1 color configuration of teTeX/TeXLive
)
! Package color Error: No driver specified.
See the color package documentation for explanation.
Type H for immediate help.
...
l.123 }
You should make a default driver option in a file
color.cfg
eg: \ExecuteOptions{dvips}
)
Both versions of TeX are installed the standard way,
without changes (except adding a few local LaTeX style files).
Is this happening to anybody else?
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Re: [R] R: Including R plots in a Microsoft Word document
Saving as a metafile should to the trick. emf files work nicely in Word. Michael A. Miller wrote: "Frank" == Frank E Harrell <[EMAIL PROTECTED]> writes: > Also, has anyone tried creating a Word document using > OpenOffice with figures imported from R? I've tried that. It works fine with openoffice, but not with word. For example, create a postscript file with R like this: -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386 __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] ID mprxahov... thanks
Yours ID hkpw -- Thank __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Questions about Matrix
whatisit<-function(t,m,n) outer(0:t,1:m,function(x,y)(x-y)^n) > whatisit(3,2,4) [,1] [,2] [1,]1 16 [2,]01 [3,]10 [4,] 161 Yao, Minghua wrote: M <- matrix(0, t+1, m) for (i in 1:(t+1)) for(j in 1:m) M[i,j] <- (i-1-j)^n From: [EMAIL PROTECTED] on behalf of duoduo chen Sent: Mon 2/16/2004 2:41 PM To: [EMAIL PROTECTED] Subject: [R] Questions about Matrix How to Generate the Matrix (t+1)*m ? (0-1)^n (0-2)^n (0-m)^n (1-1)^n (1-2)^n (1-m)^n (2-1)^n (2-2)^n (2-m)^n .. ... ... (t-1)^n(t-2)^n (t-m)^n Appreciate your kindly help! - [[alternative HTML version deleted]] __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html [[alternative HTML version deleted]] __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386 __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] D(COM) with Excel
Hi, as the one who wrote the RExcel package let me add something to the discussion. Thomas Baier's R (D)COM package tries to use "native" Windows data types to be as fast as possible. My RExcel package has the following philosophy: Offer R functions to people who "think spreadsheet". One way of describing it is: You can have an R process living in each cell of the spreadsheet, and the output of R we want to deal with hast to be compatible with the spreadsheet structure. That is the reason for the restriction to arrays. Spreadsheets (NOT the embedded programming language) do not know about objects. Somewhat oversimplifying one might say: RExcel brings R computation to the spreadsheet, and RDCOM brings R objects to VBA. Erich Neuwirth David James wrote: Hi Joel, You may want to take a look at the RDCOM implementation at http://www.omegahat.org/RDCOMServer. We've had very good experience with it. -- David Joel Pitt wrote: Hi there, I'm currently trying to use R in an automated macro with Excel, and to this effect I've been using the D(COM) server. However I've been having alot of problems with it, because it seems to be limited to only recieving and sending arrays. I've been struggling trying to find a way to receive model summaries from R to put in Excel. I also seem to have some strange errors coming up... I've tried doing everything I want directly in R by hand, and it has been fine, but excel seems to complicate everything :( Any people have suggestions? Thanks, joel __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386 __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] fedora and yum
I just installed Fedora in VMWare. Can somebopdy tell me what lines i have to put in yum.conf so R will be automatically integrated in the package system and updated when a new release is available? -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386 __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] R video
Quicktime also can convert sequences of images into quicktime and avi movies. It accepts quite a lot of different image formats. Thomas Petzoldt wrote: David Khabie-Zeitoune schrieb: Hi Does anybody know of any R packages under Windows to produce video files from a sequence of R graphs -- e.g. in .wmv or avi format? Erich Neuwirth __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
Re: [R] R as COM client (rather than server)
It can be done.
But it is still in development and therefore not on CRAN.
There is a library rcom which does exactly what you are asking for.
http://sunsite.univie.ac.at/rcom/
always has the latest version of the R COM package,
currently including the package for R as a client also.
There is a special mailing list for questions
related to R and (D)COM
you can subscribe to it at
http://mailman.csd.univie.ac.at/mailman/listinfo/rcom-l
DED (David George Edwards) wrote:
Hello all
Can R be used as a COM client (rather than as a COM server)? The following
(Splus) code shows the sort of thing I'd like to do:
pMIM <- create.ole.object("mim31.Server")
NoOutputLines <- call.ole.method(pMIM, "SendCmdLine", "show w")
for (i in 1:NoOutputLines) show(call.ole.method(pMIM,
"GetOutputLine"))
release.ole.object(pMIM)
I've tried to look at the RDCOM documentation but could not figure out
whether this can be done.
Regards
David
David Edwards, Biostatistics,
Novo Nordisk A/S, Bagsværd, Denmark.
[EMAIL PROTECTED]
Tlf: +45 44 42 62 35. Fax: +45 44 42 14 80
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Re: [R] excel files and R
And there is Thomas Baier's and my RCOM package which would allow to run R from within Excel or exchange data between Excel and R with R as the main interface. Morrison, Gordon wrote: If you really want to run windows from R (in my experience it is much better to reside entirely within R) then I think that you need to use Duncan Temple Lang's RDCOM package ( http://www.omegahat.org/ ). It works well and robustly for connections to other packages and I have tested it for Excel. __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
Re: [R] rsync
Seth Falcon wrote: I am now downloading r-devel to compile it on windows XP. The CRAN source code page says "you will prefere to use rsync". I am googling around, and cannot find anything about rsync on windows. You can use rsync on Windows via the Cygwin toolset (see www.cygwin.com). If you do that and also want to use Brian Ripley's toolkit for compiling, you might get into trouble because of incompatible versions of cygwin1.dll I managed to get a working solution by using rsync from http://optics.ph.unimelb.edu.au/help/rsync/rsync_pc1.html and putting rsync.exe into the directory with brian's binaries (sed, grep, diff ...) this rsync vversion can work with brian's version of cygwin1.dll. __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
Re: [R]
Searching for Arithmetic shows %% as an infix operator Oezlem Gengaslan wrote: Hi, can someone tell me, if there is a function in R for the modulo operator? bye __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
Re: [R] Access to R from a remote location
instead of realvnc you might also consider eSVNC, available from http://perso.wanadoo.fr/samfd/esvnc it has one additional feature: file transfer. so if you need to transfer data to r from your local machine, it might be the better solution. Jonathan Baron wrote: On 01/09/03 13:12, Erick Edwards wrote: Currently, our organization grants some employees remote access to SAS and other software through a secure Citrix-based network server. We would like to install R on a dedicated network server and enable remote access through Citrix. Is this possible? If so, what additional software would we need? Any advice would be greatly appreciated. I don't know about Citrix, but I have had success running R with VNC (http://realvnc.com). Of course, since R is free, everyone who uses it can install it. But for occasional users, like students doing an assignment, this works well. Jon __ [EMAIL PROTECTED] mailing list http://www.stat.math.ethz.ch/mailman/listinfo/r-help
Re: [R] Access to R from a remote location - follow up
for keeping a job running when i log out on a unix system i use the gnu tool screen it has many functions, one being able to disconnect from a running (even interactive) terminal session and making the process believe that you are still connected. next time you log in, you connect to the "old" session. so it definitely would support what you want to do. Roger Peng wrote: This is possible because I've done it many times. But I think whether or not your job gets killed when you log out depends on your shell/operating system. -roger ___ UCLA Department of Statistics [EMAIL PROTECTED] http://www.stat.ucla.edu/~rpeng On Thu, 9 Jan 2003, Martin Renner wrote: Following up on Erick's post, does anybody know whether it is possible to start a lengthy batch-job in R, then log-out/break a dial-up connection (while R is still running) and later pick-up the R outfile? __ [EMAIL PROTECTED] mailing list http://www.stat.math.ethz.ch/mailman/listinfo/r-help
