This page may be helpful :)
http://www.r-project.org/doc/bib/R-books.html
Modern Applied Statistics with S is quite broad and very good.
On Nov 28, 2007 4:38 PM, Max <[EMAIL PROTECTED]> wrote:
> Hi everyone!
>
> I've recently begun to learn R for my job as the IT department suffers
> from lack
Hi everyone!
I've recently begun to learn R for my job as the IT department suffers
from lack of funding for new software. I was talking to the guy in
charge of Requisitions and have found out the budget for books is in
great shape.
So, I'm curious what books people know of that have R example
Dear Pedro,
you might be interested in the demo "StationaryRegressorDistr" of
package "distr".
library(distr)
demo("StationaryRegressorDistr")
hth,
Matthias
[EMAIL PROTECTED] wrote:
> Thanks Prof. Ripley.
>
> My apologies for not including the code.
>
> Below I illustrate my point using the G
Felipe Carrillo yahoo.com> writes:
> Hi:I recently started using the melt function and
> found that it is very useful and powerful,however I
> can't seem to find the way to change the default
> column header "value" to my custom column name.
melted data are data frames. You can names[..]<-"myva
Hello all!
I have recently started using the LOCFIT package, together with Clive
Loader's book. I need to implement some method for automatic (plug-in)
bandwidth selection in a multivariate kernel regression. From the book, and
the LOCFIT documentation, it is not clear whether this is possible.
hi!
i've tried to run this code in R using the VGAM package. I know it's not a
good fit. But i encountered a problem in calling the estimated parameter
values using fit$estimate. But the codes worked if i put the estimated values
just like in this case:
y.l <- dgpd(x, scale=0.979421685 ,
See if the examples in
demo(Ryacas)
are what you want (after installing and loading the package). See:
http://ryacas.googlecode.com
On Nov 28, 2007 10:06 PM, <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I want to ask a question about expression for object.
> In the example parts, I saw
> trig.exp <-
hi all!
Thank you for replying on my message. I will try all your suggestions.
Thank you again!
Filame
filame uyaco <[EMAIL PROTECTED]> wrote:
hi!
i send again my question because there was a problem earlier that
someone did not see my attached file. If you really can't download it,
The trackObjs package will do this, at the level of objects in an environment.
E.g., from the docs:
> library(trackObjs)
> track.start("tmp1")
> x <- 123 # Not yet tracked
> track(x) # Variable 'x' is now tracked
> track(y <- matrix(1:6, ncol=2)) # 'y' is as
Allen,
what is the separator then? Can you give us a minimal example of a
file? Otherwise we can't really help you much I'm afraid.
If you want spaces to count as NA, then you want to set na.strings="
" probably, but read.table by default uses spaces to separate
columns, so you will want to
On Wed, 28-Nov-2007 at 06:46PM -0500, affy snp wrote:
|> Hi list,
|> Is there a way to read in a txt file with some blanks? The ideal way could
|> be to replace blanks with NAs.
If the fields are delimited by tabs, the blanks will automatically
become NAs if you use read.table but without any mor
Dear Dallazuanna:
Thanks for your reply. It really has solved my problems.
However, I have another question. How can I do, if I need to calculate such
equation in all sub-dataframe? I try to use "A.split[]" to catch all
sub-dataframe, but it seems can not catch the columns of all sub-dataf
We provide arima.sim() to simulate from stationary ARIMA processes, and I
had guessed you were trying to use that.
But what your code did was to simulate a non-stationary Gaussian AR(1),
fit a marginal distribution to it as if it were iid (it is neither 'i')
and then simulate iid samples from t
Hi Jim,
Thanks a lot! I would like the blanks to be read as NAs.
I tried
cgh<-read.table(file="WM115A.txt",header = TRUE,fill = TRUE,na.strings =
"NA")
but the blanks were just filled by their flanking columns.
Best,
Allen
On Nov 28, 2007 7:42 PM, jim holtman <[EMAIL PROTECTED]> wrote:
The question is what do the 'blanks' mean? I assume that they are
separating the variables since that is the default for read.table.
So what is the difference between:
1) "1 2" one blank
2) "1 2" two blanks
3) "1 2" three blanks
4)
How are these different conditions supposed to be
Hi,
The function you show below performs
relatively simple S language stuff, and
looks as if it will run as is in R.
Looks like you'll need an output object
"Hill.2oQV" (I'm guessing from a function
of the same name). That Hill.2oQV() function
may need some work, but the Hill.AMSE.kopt()
funct
On Nov 28, 2007, at 5:59 PM, Yupu Liang wrote:
> Hi,
>
> I'm using boxplot in R to show box-whiskers plots for about 15
> categories of data. I'd like to display ALL of the data points--not
> just the outliers. Does anyone know if there's a parameter setting
> that will accomplish this with boxp
Hi,
I want to ask a question about expression for object.
In the example parts, I saw
trig.exp <- expression(sin(cos(x + y^2)))
D(trig.exp, c("x", "y"))
Now, I want to define a complex function in "expression", for example,
f1(x)=...
f2(y)=..
final f=f2(f1(x)+4)
may I define
hi!
i send again my question because there was a problem earlier that
someone did not see my attached file. If you really can't download it,
this is the attached file.
Please help me how to convert this S plus file to R.
Is there a quick method to do it? I don't have an S plus
installer h
Can anybody give me a neat example of interval censored data analysis codes in
R?
Given that suvreg(Surv(c(1,1,NA,3),c(2,NA,2,3),type="interval2")~1)
works why does
survreg(Surv(data[,1],data[,2],type="interval2")~1)
not work where
data is :
T.1 T.2 Status
1 0.0
If the data is fixed field, then read.fwf. Else blanks are normally
allowed delimiters. How do you want to interprete blanks? There are
number of ways, none of which you have specified.
On Nov 28, 2007 6:46 PM, affy snp <[EMAIL PROTECTED]> wrote:
> Hi list,
> Is there a way to read in a txt fil
> Dear all,
>
> How can I fit a power model in R.
>
> Thanks in advance,
>
> miltinho
>
>
>
> para armazenamento!
>
> [[alternative HTML version deleted]]
Try the approach below with the lognormal distribution for the data. The
data is real.
Rubén
y<-c(2841,1151,1579,1491,1306,2294,1781,1
Our January-February 2008 R/S+ course schedule is now available. Please
check out this link for additional information and direct enquiries to Sue
Turner [EMAIL PROTECTED] Phone: 206 686 1578
Can't see your city? Please email us!
[2]www.xlsolutions-corp.com/courselist.htm
Hi list,
Is there a way to read in a txt file with some blanks? The ideal way could
be to replace blanks with NAs.
Thanks a lot!
Allen
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listi
hi!
attached is an example of S file i got from the net. Can anyone help me how to
convert it in R? Is there a quick method on conversion? I don't have S
installer here. Thanks for the help.
Filame
-
__
R-he
Dear all,
How can I fit a power model in R.
Thanks in advance,
miltinho
para armazenamento!
[[alternative HTML version deleted]]
__
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https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting
Hi,
I'm using boxplot in R to show box-whiskers plots for about 15
categories of data. I'd like to display ALL of the data points--not
just the outliers. Does anyone know if there's a parameter setting
that will accomplish this with boxplot? Other options would be to
overlay the plotted
Dear R-helpers,
Jones & Kenward (2003)¶ discuss balanced designs with many periods
(p). It is my impression the algorithmic design packages (AlgDesign,
crossdes, conf.design) in R do not handle cases in which the number of
treatments (t) is < p. Am I mistaken?
To be concrete: I am designing
Dear All,
I think I have followed everything for building my first R package
(Downloading Rtools, necessary files in necessary locations, no space
in path and...). But when in command Prompt I write "Rcmd check
mypackage" the first few steps are "OK" but then it gives the
following error:
c
I think this does what you are asking for. It should be
relatively easy to write a method
latex.ftable()
based on this. One or two row.vars and one or two col.vars
should be straightforward (with n.rgroup and n.cgroup used
for the second row and column).
Rich
start here
df = data.frame(d
Hi list,
I used heatmap() and heatmap.2() to draw the dendrogram
and got error messages for both. They were:
heatmap(as.matrix(y3),col=rainbow(256),scale = "column");dev.off();
Error in hclustfun(distfun(x)) :
NA/NaN/Inf in foreign function call (arg 11)
Does anybody know how to correct this?
Irina, you must have them in character format. You need to convert to Date type.
mydates = as.Date(mydates, "%m/%d/%Y")
HTH.
Horace
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Irina Burmenko
Sent: Wednesday, November 28, 2007 11:44 AM
To: Horace Tso
Convert to Date and then compare;
> x <- as.Date("4/8/2006", "%m/%d/%Y")
> y <- as.Date("5/10/2007", "%m/%d/%Y")
> x>y
[1] FALSE
>
On Nov 28, 2007 2:44 PM, Irina Burmenko <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I have dates in the following format: 4/8/2006 (MM/DD/). I need to have
> R compar
I am working with a dissolved oxygen dataset. continuous readings are taken
at 15 minute intervals and we have been recording these data at 12 stations
along the savannah river for two years now. The longest set of readings
that are continuous without interuption is 53 days. I would like to look
Hi,
I have dates in the following format: 4/8/2006 (MM/DD/). I need to have R
compare date A to date B to figure out which one is more recent. Is there a
way to do that? Simply using the '>' or '<' signs doesn't seem to work. I
think in this case R treats '/' as a division sign and give
Thanks much, François. The price of Okabe et al is quite dear, so I think I'll
stick with Aurenhammer's survey,
http://doi.acm.org/10.1145/116873.116880
and Aurenhammer and Klein,
http://www.pi6.fernuni-hagen.de/publ/tr198.pdf
-Original Message-
From: Sandrine-et-Francois [mai
url:www.econ.uiuc.edu/~rogerRoger Koenker
email[EMAIL PROTECTED]Department of Economics
vox: 217-333-4558University of Illinois
fax: 217-244-6678Champaign, IL 61820
On Nov 28, 2007, at 2:45 PM, Malte Brockmann wrote:
>
>
Hi Jan,
In case you don't know it already, the reference book for Voronoi diagrams
and co. is :
Spatial Tessellations: Concepts and Applications of Voronoi Diagrams
by Okabe et al. (Ed. Wiley). It's a bit old now ... but it's 'a' good
reference.
HTH,
Best regards,
François
- Original Message
Dear R-Community,
I am currently using Tobit models (survreg in the survival package).
1a) Does R provide a straight-forward way to test distributional assumptions
for tobit models?
1b) If not: I tried to apply the Hausman-test proposed in Newey (1987), Journal
of Econometrics, on the Tobit es
Hello,
I'm using R on a 10 blade dual quad core Rocks Cluster, and trying to use Rpmi
and snow. I basically wondered if at the moment I ought to install Rmpi
against another form of mpi (not openmpi) and wondered whether anyone could
pass on any experience.
I'm mainly worried about (a) the R
>Hi there,
>
>I am looking for R-packages that can help me visualize properties on
>nucleotide sequences. I want to display sequences in the 1-100K base range
>as lines and plot features above and below those lines.
>
>Any ideas would be welcome.
>
>Thanks,
>
>Bernd
Hi Bernd,
not sure to understa
Feifei --
Ask on the Bioconductor mailing list http://bioconductor.org. Update
your Bioc packages following instructions on the 'install - how to'
page linked from the main bioconductor page -- your affy is out of
date.
Best, Martin
Feifei <[EMAIL PROTECTED]> writes:
> Hi,
>
> Can anyone help
Thanks Prof. Ripley.
My apologies for not including the code.
Below I illustrate my point using the GLD package.
Thank you very much for your time.
Kind Regards,
Pedro N. Rodriguez
# Code begins
# Simulate an ar(1) process
# x = 0.05 + 0.64*x(t-1) + e
# Create the vector x
x
Try this:
merge(df1, df2, by.y=1, by.x=1, all=T)
merge(df1, df2, by.y=1, by.x=1)
On 28/11/2007, tom soyer <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I have two sets of data that I would like to put into a data frame. But
> since they have different length, I am not sure how to do this. Here is an
> exa
tom soyer wrote:
> Hi,
>
> I have two sets of data that I would like to put into a data frame. But
> since they have different length, I am not sure how to do this. Here is an
> example of my data:
>
> data set one:
> date growth
> 1/1/2007 10
> 1/2/2007 10.2
> 1/3/2007 10.4
> 1/4/200
Merge worked! Thanks!!!
On 11/28/07, Matthew Keller <[EMAIL PROTECTED]> wrote:
>
> Tom,
>
> Check out ?merge. Does exactly what you need
>
> Matt
>
> On Nov 28, 2007 11:27 AM, tom soyer <[EMAIL PROTECTED]> wrote:
> > Hi,
> >
> > I have two sets of data that I would like to put into a data frame. B
Tom,
Check out ?merge. Does exactly what you need
Matt
On Nov 28, 2007 11:27 AM, tom soyer <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I have two sets of data that I would like to put into a data frame. But
> since they have different length, I am not sure how to do this. Here is an
> example of my dat
On 11/28/2007 12:52 PM, Mithun Jacob wrote:
> I wish to run R with Visual C++ as a front end. So I was hoping to run
> a file such as graph.r in the following manner:
>
> R --slave --save --file=graph.r
I'd set things up to save the graphics to a file, and get your C++
program to display the fi
Hi,
I have two sets of data that I would like to put into a data frame. But
since they have different length, I am not sure how to do this. Here is an
example of my data:
data set one:
date growth
1/1/2007 10
1/2/2007 10.2
1/3/2007 10.4
1/4/2007 10.6
data set two:
date g
On Wed, 28 Nov 2007, Mithun Jacob wrote:
>>> Duncan Murdoch
>
> I wish to run R with Visual C++ as a front end. So I was hoping to run
> a file such as graph.r in the following manner:
>
> R --slave --save --file=graph.r
>
> But when the plot function runs, it does not display the graph.
>
>>> Pro
Hi:I recently started using the melt function and
found that it is very useful and powerful,however I
can't seem to find the way to change the default
column header "value" to my custom column name. Does
anyone know how to go about this? any suggestions are
very appreciated. Thanks
Felipe D. Carri
>>Duncan Murdoch
I wish to run R with Visual C++ as a front end. So I was hoping to run
a file such as graph.r in the following manner:
R --slave --save --file=graph.r
But when the plot function runs, it does not display the graph.
>>Prof Brian Ripley:
So would I be correct to assume that it's
On Wed, 28 Nov 2007, Mithun Jacob wrote:
> I've tried running graphics commands like plot by invoking R at the
> command line but the graphics window does not appear. I'm using
> R-2.6.0 on Windows XP and am using the cmd shell. Here's a sample
> session:
>
> R --slave --save --file=-
> x<-c(1,2,3
Hello,
It's on bioconductor. Try changing the repository when installing packages
Best
Paul
-=-=-=-=-=-=-=-=-=-=-=-=
Paul Hewson
Lecturer in Statistics
School of Mathematics and Statistics
University of Plymouth
Drake Circus
Plymouth PL4 8AA
tel (01752) 232778 (Campus)
tel (01752) 764437 (Ta
On 11/28/2007 12:05 PM, Mithun Jacob wrote:
> I've tried running graphics commands like plot by invoking R at the
> command line but the graphics window does not appear. I'm using
> R-2.6.0 on Windows XP and am using the cmd shell. Here's a sample
> session:
>
> R --slave --save --file=-
> x<-c(1,
Thank you very much Duncan, that did the works.
Thank you also Gavin and Bernardo for your feedback.
Best regards,
Carlos
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-pr
Barry Rowlingson wrote:
> jim holtman wrote:
>
>> ?match
>>
>>
>>> X
>>>
>> [1] 2 6 1 7 4 3 5
>>
>>> Y
>>>
>> [1] 1 1 6 4 6 1 4 1 2 3 6 6 1 2 4 4 5 4 1 7 6 6 4 4 7 1 2
>>
>>> match(Y,X)
>>>
>> [1] 3 3 2 5 2 3 5 3 1 6 2 2 3 1 5 5 7 5 3 4 2 2 5 5 4 3 1
>>
>>
On 11/28/2007 12:54 PM, Dave Roberts wrote:
> Bryan,
>
> The previous responses will point you in the right direction. I
> have found, however, that it takes a while to get used to the
> requirements, and there are many possible sources of error.
This is true, and the advice below is all
Hello,
unfortunately I can not find the pcaMethods package.
Birgit
Am 26.11.2007 um 16:26 schrieb Kevin Wright:
> The pcaMethods package offers a collection of different algorithms for
> PCA, some of which (NIPALS and others) can be used on data that have
> missing values.
>
> Kevin Wright
>
>
I've tried running graphics commands like plot by invoking R at the
command line but the graphics window does not appear. I'm using
R-2.6.0 on Windows XP and am using the cmd shell. Here's a sample
session:
R --slave --save --file=-
x<-c(1,2,3,4)
plot(x,x)
This leads to nothing. I've found a way
Bryan,
The previous responses will point you in the right direction. I
have found, however, that it takes a while to get used to the
requirements, and there are many possible sources of error.
1) You have to convert the main program to a subroutine. Any arrays
declared in the main progr
You may want to check the package "sde" that can simulate from a number of
different stochastic differential equations, including the OU process.
Ravi.
---
Ravi Varadhan, Ph.D.
Assistant Professor, The Center o
You could use the weights= argument of lm or if these points represent
a different factor you could add a dummy variable which is one for those
points and 0 otherwise. Also check out quantile regression in the
quantreg package.
On Nov 28, 2007 11:14 AM, Wolfgang Raffelsberger
<[EMAIL PROTECTED]> w
Hi,
Can anyone help me of the affylmGUI package, I can't get it work and
searched for google but can't find any proper solutions.
I get the error information each time when I load my cells files, which
are shown in the following links.
-
http://clarezoe.googlepages.com/1.png
http://cl
On Wed, 28 Nov 2007, [EMAIL PROTECTED] wrote:
> Is it possible to simulate an AR(1) process via a distribution?
Any distribution *of errors*, yes. Of the process values, not in general.
> I have simulated an AR(1) process the usual way (that is, using a model
> specification and using the rando
Eleni,
The method= argument is in reference to how clusters are
constructed, not how the dissimilarity or distance is calculated. If
you pass agnes diss=TRUE then it will use the distances you have
calculated by whatever means. method="complete" means that clusters are
evaluated by the
"Edna Bell" <[EMAIL PROTECTED]> wrote:
> Hi R Gurus!
>
> This is definitely off topic, but I thought I'd try: what is the way
> to put in url's into a Latex file, please?
In future, you might want to post such questions in group
comp.text.tex
Mike
--
Mike Prager, NOAA, Beaufort, NC
* Opinion
jim holtman wrote:
> ?match
>
>> X
> [1] 2 6 1 7 4 3 5
>> Y
> [1] 1 1 6 4 6 1 4 1 2 3 6 6 1 2 4 4 5 4 1 7 6 6 4 4 7 1 2
>> match(Y,X)
> [1] 3 3 2 5 2 3 5 3 1 6 2 2 3 1 5 5 7 5 3 4 2 2 5 5 4 3 1
>
I quite like this solution:
> X[X[X[X[X[X[X[X[X[X[X]][Y]
[1] 3 3 2 5 2 3 5 3 1 6
Hello Eleni,
as far as I understood and used agnes() the method argument
determines only the clustering method.
If you use diss=TRUE the distances should be taken from the distance
matrix.
Birgit
Am 28.11.2007 um 12:18 schrieb Eleni Christodoulou:
> Hello all!
>
> I am performingsome cluste
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
> Of Tine
> Sent: Wednesday, November 28, 2007 12:57 AM
> To: r-help@r-project.org
> Subject: [R] Different value between R variance and definition of variance
>
> Hi!
>
> Let us define random variable:
>
vito muggeo wrote:
> Dear all,
> I have the following (rather) strange problem..
> For some reasons, I finally work with a variable whose name includes an
> R function, "a.log(z)", say. And that is a problem when I call it in a
> formula, for instance:
>
> > myname<-"a.log(z)"
> > dd<-data.fram
Dear list,
I have encountered a special case for searching a linear regression
where I'm not satisfied with the results obtained using the traditional
least squares method (sometimes called OLS) for estimating/optimizing
the residues to the regression line (see code below). Basically, a
group
Ingmar Visser wrote:
> does this do what you want?
>
> sapply(y,function(y){which(y==x)})
>
Maybe, but match(Y,X) would be more to the point.
> hth, Ingmar
>
> On 28 Nov 2007, at 15:53, Serguei Kaniovski wrote:
>
>
>> Hallo,
>>
>> I have two vectors of different lengths which contain the sam
On 11/28/2007 9:52 AM, vito muggeo wrote:
> Dear all,
> I have the following (rather) strange problem..
> For some reasons, I finally work with a variable whose name includes an
> R function, "a.log(z)", say. And that is a problem when I call it in a
> formula, for instance:
>
> > myname<-"a.lo
>From: Serguei Kaniovski <[EMAIL PROTECTED]>
>Date: 2007/11/28 Wed AM 08:53:34 CST
>To: [EMAIL PROTECTED]
>Subject: [R] Replacing values job
newY<-sapply(1:length(Y), function(.element)
match(Y[.element],X))
i hope it helps you.
>
>Hallo,
>
>I have two vectors of different lengths which conta
Dear All,
Is it possible to simulate an AR(1) process via a distribution?
I have simulated an AR(1) process the usual way (that is, using a model
specification and using the random deviates in the error), and used the
generated time series to estimate 3- and 4-parameter distributions (for
does this do what you want?
sapply(y,function(y){which(y==x)})
hth, Ingmar
On 28 Nov 2007, at 15:53, Serguei Kaniovski wrote:
>
> Hallo,
>
> I have two vectors of different lengths which contain the same set of
> values:
>
> X < -c(2,6,1,7,4,3,5)
> Y <- c(1,1,6,4,6,1,4,1,2,3,6,6,1,2,4,4,5,4,1,7
Li Li gmail.com> writes:
>
> Hi,
>
> I am using some classifiers in RWeka packages and met a couple problems.
>
> (1) J48 implements C45 classifier, the C45 should be able to handle missing
> values in both training set and test set. But I found the J48
> classifier can
> not be eval
hello everyone,
i'm trying to simulate a 2-parameter integrated ornstein-uhlenbeck (IOU)
process, but i'm not sure exactly where to start (which package, which
function). the motivation is the paper by taylor et. al. (JASA 1994) "a
stochastic model for the analysis of longitudinal aids data." t
Hello all!
I am performingsome clustering analysis on microarray data using
agnes{cluster} and I have created my own dissimilarity matrix according to a
distance measure different from "euclidean" or "manhattan" etc. My question
is, if I choose for example method="complete", how are the distances
Names not conforming to the usual R syntax can be placed
in backquotes:
> `log(x)` <- 1:10
> lm(`log(x)` ~ 1)
Call:
lm(formula = `log(x)` ~ 1)
Coefficients:
(Intercept)
5.5
On Nov 28, 2007 9:52 AM, vito muggeo <[EMAIL PROTECTED]> wrote:
> Dear all,
> I have the following (rather) stran
On 11/28/2007 9:41 AM, Luis Ridao Cruz wrote:
> This is additional information to my previous email (pasted below)
>
>
> ## I opened an R session ( R 2.6.0 on Windows) and got the following
> pop-up window:
>
> ## "This application has failed to start because tk84.dll was not
> found. Re-install
?match
> X
[1] 2 6 1 7 4 3 5
> Y
[1] 1 1 6 4 6 1 4 1 2 3 6 6 1 2 4 4 5 4 1 7 6 6 4 4 7 1 2
> match(Y,X)
[1] 3 3 2 5 2 3 5 3 1 6 2 2 3 1 5 5 7 5 3 4 2 2 5 5 4 3 1
>
On Nov 28, 2007 9:53 AM, Serguei Kaniovski <[EMAIL PROTECTED]> wrote:
>
> Hallo,
>
> I have two vectors of different lengths which
> I have two vectors of different lengths which contain the same set of
> values:
>
> X < -c(2,6,1,7,4,3,5)
> Y <- c(1,1,6,4,6,1,4,1,2,3,6,6,1,2,4,4,5,4,1,7,6,6,4,4,7,1,2)
>
> How can I replace the values in Y with the index (!) of the
corresponding
> values in X. So 2 appears in X in the first
Dear Suzuky,
basically you can run R on Vista like you can on Windows XP.
However, there is one issue about installing additional packages :
When launching R under Vista, by default you won't launch as
administrator, and in consequence you can't install additional packages
(i.e. installing conv
Dear all,
I have the following (rather) strange problem..
For some reasons, I finally work with a variable whose name includes an
R function, "a.log(z)", say. And that is a problem when I call it in a
formula, for instance:
> myname<-"a.log(z)"
> dd<-data.frame("a.log(z)"=1:10,y=rnorm(10))
>
R works on Vista provided you have learned enough about Vista to get around
the enhanced security model.
Microsoft One Care software and the overall better security of Vista
is, in my opinion,
much superior to Norton/Symantec/XP.
Many people use Skype these days and Skype is not officially suppor
Hallo,
I have two vectors of different lengths which contain the same set of
values:
X < -c(2,6,1,7,4,3,5)
Y <- c(1,1,6,4,6,1,4,1,2,3,6,6,1,2,4,4,5,4,1,7,6,6,4,4,7,1,2)
How can I replace the values in Y with the index (!) of the corresponding
values in X. So 2 appears in X in the first coordina
This is additional information to my previous email (pasted below)
## I opened an R session ( R 2.6.0 on Windows) and got the following
pop-up window:
## "This application has failed to start because tk84.dll was not
found. Re-installing the application may fix the problem"
## I have now upgr
R-help,
I opened an R session ( R 2.6.0 on Windows) and got the following
pop-up window:
"This application has failed to start because tk84.dll was not found.
Re-installing the application may fix the problem"
I have now upgraded to R 2.6.1 but the same fatal error comes up.
Can someone let me
> >How
> >can
> >> I re-label the groups in the descending order of their cumulative
> >"weight",
> >foo = data.frame(country=c("bul", "cze", "grc", "hun", "prt", "rom",
> >"fra", "ita", "gbr", "aut", "bel"),
> >weight=c(10,12,12,12,12,4,29,29,29,10,12),
> >group=c(1,1,1,1,1,1,2,2,2,3,3))
> >
> >#
If the administrator account does not exist, this info provided for another
software program I use may be helpful:
"Some Windows Vista installations may have the Administrator account turned
off. If so, it is easy to turn the true Administrator account on. To do so,
open the Control Panel and ope
I am writing to inquire about a warning message that I receive when
trying to model a random slope and intercept at the second level of a
3-level model. Specifically, I am testing a 3-level model in which
time (WEEK) is nested in participants (PARTICIP) and participants are
nested in dyads (DY
On Wed, 28 Nov 2007, Lusseau, David wrote:
> Just installed R on a new machine which is on a server. I am trying to
Under Windows, I infer.
> download packages but seem to have trouble with our proxy settings. I
> have read the 2.19 section in R for Windows and tried what was suggested
> (settin
It's meaningful, but not under the name 'interaction'. The model is the
same as
y ~ x1 + x2 + I(x1*x2)
that is, 'including a product term'. However, needing product terms often
indicates a missed transformation of y (e.g. it might be better to use
log(y)).
On Wed, 28 Nov 2007, Irene Mantzou
Just installed R on a new machine which is on a server. I am trying to
download packages but seem to have trouble with our proxy settings. I
have read the 2.19 section in R for Windows and tried what was suggested
(setting http_proxy) but that did not help (still cannot connect). I
think my problem
Hi all!
this is a rather statistical question:
is it meaningful to consider an interaction effect between 2 continuous
covariates?
for example: lm(y~x1+x2+x1:x2)
Should one of continuous x1, x2 be "transformed" to a categorical variable,
i.e. be classified into groups?
Is it easier to interpre
help.start(), then "Writing R extensions".
You can link fortran subroutines to R by compiling them in a shared
library (.so or .dll depending on your system) by the command:
R CMD SHLIB file1.f file2.f -o myfortransubroutines.so
and then from R you first
dyn.load("myfortransubroutines.so")
and
Try this:
A.split[[1]]["time"]
A.split[[1]][["concentration"]]
test <- NULL
for(i in 2:4){
test[i] <- (A.split[[1]][["time"]][i] - A.split[[1]][["time"]][i-1]) *
(A.split[[1]][["concentration"]][i] - A.split[[1]][["concentration"]][i-1])
* 0.5
}
On 28/11/2007, leeznar <[EMAIL PROTECTED]>
Try this:
df$group <- factor(df$group)
levels(df$group)<- names(sort(tapply(df$weight, df$group, sum),
decreasing=T))
On 28/11/2007, Serguei Kaniovski <[EMAIL PROTECTED]> wrote:
>
>
> Dear All,
>
> Suppose I have the following dataframe:
>
> country;weight;group
> bul;10;1
> cze;12;1
> grc;12;1
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