page or the source is a better
way to find out about the requirements for the arguments of a function.
Duncan Murdoch
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-orange)^2/(orange^2))
}
This is still coded incorrectly. Objective functions optimize over the
first parameter only. See ?optim for the details. constrOptim is just
a wrapper for optim.
Duncan Murdoch
fit.error.grr=function(rec1,lambda1,lbar1)
{rec=rec1
lambda=lambda1
lbar=lbar1
trying to optimize
over them as well. Put them all into one vector.
The documentation for constrOptim doesn't make this as clear as it
should; I'll clarify (by copying the docs from ?optim).
Duncan Murdoch
fit.error.grr=function(rec,lambda, lbar)
{drec=sum(eval(D(apple,'rec'))*(eval
the one above.
Duncan Murdoch
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and provide commented, minimal, self-contained, reproducible code.
to save the workplace or not. Please help
me out.
In Windows you can also abort execution by hitting Esc, or the menu
entry Misc|Stop current computation.
Duncan Murdoch
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for the
passthrough). The file arg is described as a character string, not a
connection, so I wouldn't expect stdout() to work. For write.table(),
the arg is defined to be either the name of a file or an open connection.
Duncan Murdoch
Thanks,
--Gene
not sure
all devices guarantee a clean shutdown when R quits.
Duncan Murdoch
--Gene
On Fri, 7 Sep 2007, Duncan Murdoch wrote:
On 9/7/2007 12:36 PM, Gene Selkov wrote:
I have found two prior instances of this question in R-help, but I can't
find the answer, and I'm giving up on mindless
some sort
of snapshot of the state beforehand, and then you could restore it.
Duncan Murdoch
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This includes latitude and longitude. Zip codes cover a fairly large
area so this won't give very accurate information, but it's easy to get.
Duncan Murdoch
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PLEASE do read
://cran.r-project.org/doc/html/interface98-paper/paper.html
R was written in C, with the intention that it be Scheme-like.
Duncan Murdoch
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nor 2.)
Duncan Murdoch
#Second example:
x=c(1,2)
t-for(i in 1:length(x)){
if (x==1){
a=x
b=x-1}else
if (x==2){
a=x+1
b=x}
b-list(a=a,b=b)
}
Returned from R:
Warning messages:
1: the condition has
to do this, but one that works is to use
\begin{frame}[containsverbatim]
at the start of each slide. This makes some other beamer features stop
working, but I forget which.
Duncan Murdoch
Could you please see the file:
http://www.mayin.org/ajayshah/tmp/bugdemo.Rnw
Unfortunately
, but this probably works
anywhere: put keep.source=TRUE in your \SweaveOpts{} at the start of
the file.
Duncan Murdoch
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this change by manually changing Standard format to
Text *every time* I load the file. There's a help index entry date
formats;avoiding conversion to, but it offers no more help than add an
apostrophe at the beginning of the entry.
This is brain-dead behaviour.
Duncan Murdoch
JWDougherty
PS
for negative x.
Duncan Murdoch
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and provide commented, minimal, self-contained, reproducible code.
for the sample mean and have the data change in
response.
But just think how much money you could make as a consultant if you
could change the p-value from 0.08 to 0.01.
Duncan Murdoch
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^(1/3)
[1] 0.5+0.8660254i
(1/x)^(1/3)
[1] 0.5-0.8660254i
i.e. even though x and 1/x are equal, the 1/3 powers of them are not.
Duncan Murdoch
P.S. I'm tempted to say, But don't worry about it, the difference is
only imaginary, but I'll refrain.
__
R
you should
learn astrology?
I don't think astrologers have much use for data, but if some did and
wanted to hire me to analyze it, I think understanding their point of
view would help.
Duncan Murdoch
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https
figure out what's there you should have access to
it from R using getClipboardFormats and readClipboard. I think the only
lobbying that would be needed would be to reveal the format, and that
may have already been done.
Duncan Murdoch
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On 8/27/2007 8:52 AM, John Kane wrote:
--- Duncan Murdoch [EMAIL PROTECTED] wrote:
I like the first, simple suggestion best; I'll put
it into R-devel.
(With the slight change to use ul.menu instead
of just ul, because FAQ 2.7 includes a plain ul
list.)
Duncan Murdoch
Thanks Deepayan
this kind of confusion.
Duncan Murdoch
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()
update.packages(ask='graphics')
Error in .readRDS(pfile) : unknown input format
or
utils:::menuInstallPkgs()
Error in .readRDS(pfile) : unknown input format
I'd guess it's a problem with the mirror. Which one did you choose? Do
you get the same error if you choose a different one?
Duncan Murdoch
try ?Rscript within R, or Rscript --help from the command line
(assuming you have R's bin directory on your path.
Duncan Murdoch
Prof Brian Ripley a écrit :
Look into Rscript.exe (on Windows), which is a flexible way to run
scripts. Neither using a GUI nor using source() are recommended
Message
From: Duncan Murdoch [EMAIL PROTECTED]
To: Usman Shehu [EMAIL PROTECTED]
Cc: r-help@stat.math.ethz.ch
Sent: Sunday, 26 August, 2007 12:02:13 PM
Subject: Re: [R] error message!
On 26/08/2007 6:13 AM, Usman Shehu wrote:
Dear R-users,
Can some one help me out. I tried installing
Deepayan Sarkar wrote:
On 8/23/07, Duncan Murdoch [EMAIL PROTECTED] wrote:
On 8/23/2007 11:28 AM, Prof Brian Ripley wrote:
On Thu, 23 Aug 2007, John Kane wrote:
The FAQ Section 7 is a very useful place for new users
to find out any number of R idiosycracies. However
.
Duncan Murdoch
Found example R CMD build --force --binary --auto-zip %1 pkgname in
search.R-project.org . What must be done so system can find package pkgname?
Bill Morphet
ATK Launch Systems, RSRM Postfire Evaluation Eng
on the platform, but you want
to look at ?system, ?shell, and/or ?shell.exec. (These all exist in
Windows; on Unix-alikes, you probably won't have the latter two.)
Duncan Murdoch
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much time. Writing a batch file and then running
it was much faster.
Since you say batch file I assume you're on Windows. If that's the
case, then file.rename() can rename and move a file to a new directory,
as long as it's on the same drive. That should be as quick as a batch file.
Duncan
On 8/24/2007 10:33 AM, Dirk Eddelbuettel wrote:
On Fri, Aug 24, 2007 at 08:32:00AM -0400, Duncan Murdoch wrote:
On 8/24/2007 6:58 AM, Ronaldo Reis Junior wrote:
Hi,
It is possible to use a shell command inside a R script?
I'm write a R script and I like to put somes shell commands
On 8/24/2007 1:05 PM, Gabor Grothendieck wrote:
On 8/24/07, Dirk Eddelbuettel [EMAIL PROTECTED] wrote:
On Fri, Aug 24, 2007 at 10:57:46AM -0400, Duncan Murdoch wrote:
On 8/24/2007 10:33 AM, Dirk Eddelbuettel wrote:
On Fri, Aug 24, 2007 at 08:32:00AM -0400, Duncan Murdoch wrote:
On 8/24
On 8/24/2007 11:14 AM, Dirk Eddelbuettel wrote:
On Fri, Aug 24, 2007 at 10:57:46AM -0400, Duncan Murdoch wrote:
On 8/24/2007 10:33 AM, Dirk Eddelbuettel wrote:
On Fri, Aug 24, 2007 at 08:32:00AM -0400, Duncan Murdoch wrote:
On 8/24/2007 6:58 AM, Ronaldo Reis Junior wrote:
Hi
--number-sections isn't enough.
Duncan Murdoch
An R-help list reply of Read FAQ 7.10 in response to
a question about converting a factor to numeric is a
bit cryptic. The only time 7.10 appears is after the
searcher has found the entry.
It would help if you told us what you
.
As a matter of fact, one of Oleg's examples is an image filter.
Duncan Murdoch
(Of course, it can get more complicated than just inserting a single text
fragment!)
I once implemented such a feature in an image processing package, so I
know it's not hard. Before dusting off this ancient code I
On 8/22/2007 3:20 AM, Gregor Gorjanc wrote:
Arjun Ravi Narayan contact at arjunnarayan.com writes:
I am editing a document for submission to the R-news newsletter, and
in my article my Sweave code inserts a dynamically generated PDF
report that my R program generates.
Slightly off Arjuns
not hard to recognize and merge changes to the .tex file back into the
Rnw file.
Duncan Murdoch
Best,
Renaud
2007/8/22, Werner Wernersen [EMAIL PROTECTED]:
Hi,
I am very intrigued by the idea of integrating
statistical analysis directly with a paper as Sweave
does it. But as I am
-doing all the simulations in your project.
Duncan Murdoch
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and provide commented, minimal, self
)
[1] 1.022467
You can't expect integrate() to return a sensible answer if you don't
give it a function that returns consistent results.
Duncan Murdoch
my.fcn = function(mu){
+ m = 1000
+ z = 0
+ z.mse = 0
+ for(i in 1:m){
+ z[i] = rnorm(1, mu, 1)
+ z.mse = z.mse + (z[i] - mu)^2
be
confusing, so it's not a good idea.
Duncan Murdoch
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and provide commented, minimal, self-contained
(i.e., instead of a$x, it would be a$1, a$2,
a$3, and so on, for a million times).
i would greatly appreciate it if someone could help me on this issue,
Why name things? I'd use something like
for (i in 1:100) print(a[[i]])
Duncan Murdoch
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to the
maintainer of the package, in this case Diethelm Wuertz and Rmetrics
Core Team [EMAIL PROTECTED].
Duncan Murdoch
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PLEASE do read the posting guide http://www.R
for R? I understand that in omegahat.org project, people
used ANTLR for RSJava, but i am not sure if that had anything to do with an
R-parser.
I doubt it. The parser for R is written in yacc/bison, and since nobody
has pointed to one based on ANTLR, it probably doesn't exist.
Duncan Murdoch
these ranges through
transformations.
Duncan Murdoch
Any thoughts?
Pieter
--
This message was sent on behalf of [EMAIL PROTECTED] at openSubscriber.com
http://www.opensubscriber.com/messages/r-help@stat.math.ethz.ch/topic.html
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recommend?
R is great for this, but you might need to go outside for some
specialized stuff (e.g. medical imaging).
3) Any other software I need to learn that would make my work in R
more productive? (for example, a code editor).
A lot of people are happy with ESS mode in Emacs.
Duncan
don't know if any of the devices support programmatic changes from R
code, but in Windows you could do most changes by sending Windows
messages to the window or doing Windows API calls. You can get the
handle using getWindowsHandle(), and then you'll need to write C code to
do the work.
Duncan
. This says
to return the expression that was passed to the function if the label()
function returned a blank.
Duncan Murdoch
I just get vars instead of the names when no label is defined :
llabel(v1) # works
llabel(v2) # gives var instead of v2
Thanks for your help
.
An alternative to dropping Preview is to report the bug in it to Apple.
Apple has an online bug reporting web page somewhere; I haven't found
them as helpful as R-help, but your mileage may vary.
Duncan Murdoch
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, why did it bother you so much? And why do you think
it's reasonable to complain about it on R-help, but not to complain
about it to Apple, who are clearly responsible for it?
Duncan Murdoch
On Aug 13, 2007, at 9:30 AM, Duncan Murdoch wrote:
On 8/13/2007 11:07 AM, Michael Kubovy wrote
a page full of
unhandled bug reports they'll actually do something.
Duncan Murdoch
On Aug 13, 2007, at 9:56 AM, Duncan Murdoch wrote:
On 8/13/2007 11:43 AM, Michael Kubovy wrote:
But is it a bug? Can a program anti-alias text and line drawings
and not bitmaps?
... [deletions
.3dplot$points3d(x=400, y=600, z=0.19, col=blue, type=h, pch=16)
Duncan Murdoch
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and provide
? It looks like a smoothly varying field when
produced by R 2.5.1 and viewed in Acrobat Reader 6.0 on Windows.
Duncan Murdoch
require(grDevices)
imSize - 200
lambda - 10
theta - 15
sigma - 40
x - 1:imSize
x0 - x / imSize -.5
freq = imSize/lambda
xf = x0 * freq * 2 * pi
f - function(x, y
for most modelling
functions where it makes sense.
Duncan Murdoch
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented
Michael Kubovy wrote:
On Aug 12, 2007, at 6:24 AM, Duncan Murdoch wrote:
Michael Kubovy wrote:
Dear r-helpers,
In my previous message there were comments in the code that may
have made cutting and pasting awkward. Here it is w/o them.
I have two questions:
(1) The following
be visible
outside your package, but you can still use the ::: notation to get
them, e.g.
mypackage:::myfunction
gets myfunction even if it was not exported.
Duncan Murdoch
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~ predictor. So you should expect
round(ov.mag.min,2) == round(10^(log(res.600nm,
10)*slope.min+intercept.min),2)
not the other way around, and this does evaluate to two TRUE values.
Duncan Murdoch
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https
roundup().
Duncan Murdoch
In this context you cannot leave rounding until the end of course! Clearly
in
an arithmetic context, rounding should always be left to the end but I don't
think that is to avoid rounding-to-even but just to avoid unnecessary loss of
precision in the calculation. Ask
the spelling is cumulative, but the help.search() function
can find the answer with small misspellings:
help.search(commulative sum)
yields cumsum as the answer.
Duncan Murdoch
Thanks
Zahid Khan
Lecturer in Statistics
Department of Mathematics
Hazara University Mansehra
in the R-devel group.
Duncan Murdoch
Best regards
Jens Oehlschlägel
// C-code
static void rindex_finalize(SEXP extPtr){
pINT ptr = R_ExternalPtrAddr(extPtr);
if(ptr){
Free(ptr);
Rprintf(finalized\n);
}else{
Rprintf(nothing to finalize\n);
}
return
. But if it found a c() function in the
global environment, removing it from there might be sensible (maybe even
if this rename request were executed from a function, rather than at the
top level).
Duncan Murdoch
ls()
[1] a1
Justin BEM
BP 1917 Yaoundé
Tél (237) 99597295
(237
complicated, because you
want to make the assignment in the same place the function found the
original.
There are quicker ways (using mget() and apply()), but they'd really
just be doing the same as the above in a less clear way.
Duncan Murdoch
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the dividing line using
divider - which(unlist(lapply(cmds, deparse)) == divider)
and then
part_one - 1:(divider-1)
part_two - (divider+1):length(cmds)
Finally, execute as
eval(cmds[part_one])
MORE_COMMANDS
eval(cmds[part_two])
Duncan Murdoch
Andy
From: Dennis Fisher
::file.edit(commandArgs(TRUE))
You could make things more sophisticated if you don't want a blank edit
window to open in case you're not using this shortcut.
Duncan Murdoch
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if the package does have a namespace, you can mask functions from it
that you call: for example, if you had a function called zelig (perhaps
because you used fix(zelig) to make a small change to the existing one),
your line above would call yours, not the original.
Duncan Murdoch
might want type=n in the original plot3d call
if you don't want the points to interfere with the labels.
Duncan Murdoch
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PLEASE do read the posting guide http://www.R
On 19/07/2007 7:41 PM, runner wrote:
It is ok to bury a reg expression '\n' when using 'cat', but not 'paste'.
e.g.
cat ('I need to move on to a new line', '\n', 'at here') # change line!
paste ('I need to move on to a new line', '\n', 'at here') # '\n' is just a
character as it is.
Is
the name.
Duncan Murdoch
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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.
in.
If you have 3.5 million cases to read, you should specify the column
classes. I'd recommend setting nrows to a small number for a few tries
first, until you get it right.
Duncan Murdoch
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?
Even though it's not very informative, that really is the source for
that function. For instructions on how to see the more useful stuff,
see Uwe Ligges' article in the Oct 2006 R News (available at
http://cran.r-project.org/doc/Rnews/Rnews_2006-4.pdf).
Duncan Murdoch
into a subset of length 2, which generates the
warnings. You want to assign a list of length 2 as an element of minbins.
Duncan Murdoch
And it doesn't work ...
Warning messages:
1: number of items to replace is not a multiple of replacement length in:
minbins[minute] - list(data = a, variable = b)
2
and the first index (1),
Stack=c(), Indexes=c().
{
print(Indexes)
# if (sum(i)==0) break # Doesn't work...
if (sum(i)==0) return(NULL)
should work.
Duncan Murdoch
if (is.na(v[i])==FALSE is.null(unlist(v[i]))==FALSE)
{Stack=c(i,Stack); i=2*i
-function(v,i,Stack,Indexes) # input: a vector and the first
index (1), Stack=c(), Indexes=c().
{
print(Indexes)
# if (sum(i)==0) break # Doesn't work...
if (sum(i)==0) return(NULL)
should work.
Duncan Murdoch
Hmm - - - I'd like to save the Indexes-vector (in the example
c
works. It is for inorder-tree-
walk.
iotw-function(v,i,Stack,Indexes) # input: a vector and the
first
index (1), Stack=c(), Indexes=c().
{
print(Indexes)
# if (sum(i)==0) break # Doesn't work...
if (sum(i)==0) return(NULL)
should work.
Duncan Murdoch
Hmm - - - I'd like to save
) return(est1(x,y))
if (type==est2) return(est2(x,y))
because the return() causes the function to exit and return a value.
Duncan Murdoch
However, without the second 'if' condition, it works properly:
Warning message:
multi-argument returns are deprecated in: return(x, y, z)
test
$x
[1] 1
that?
This will depend on the system you're using. If the command emailit
would work from the command line on your system, then
system(emailit)
should work from within R. Writing that command is the hard part, of
course.
Duncan Murdoch
__
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explicitly manipulate the
environment of f2 (which is an ugly way), or you could store nm1 in some
place that's visible to both f1 and f2 and use - when you set it from
within f1 (another ugly way, but sometimes less ugly than my second
suggestion).
Duncan Murdoch
to make it happen, I'd
suggest working to add it to the GL2PS project
(http://www.geuz.org/gl2ps) and then it should be automatically
incorporated into the rgl package.
Duncan Murdoch
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, verticals=TRUE, xlim=c(1, max(x)),
ylim=c(1-sum(x1)/length(x), 1))
Duncan Murdoch
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide
x[1] x[2] ...
x[n] 1, define g - function(x) f(sort(x)), and the integral you want
is (1/n!) times the integral of g over the unit cube.
Duncan Murdoch
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PLEASE do
you have his S code.
Duncan Murdoch
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained
version of
the sequence.
For example, if k=5, n=4, you might draw red 2, 3 and black 1, 2, so
you'd build your sequence as
2 3
2 2 3
2 2 2 3
or you might draw red 1, 4, 5 and black 2, so you'd output
1 4 4 5
Duncan Murdoch
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with more than a few
entries is just unwieldy.
We do have a text reference to the help files in the ?tcltk topic.
Duncan Murdoch
Cheers, Mike
Mike Prager wrote:
Alberto Monteiro [EMAIL PROTECTED] wrote:
How on Earth can I know what are the arguments of any of the functions
=rdoc:tcltk:tkcommands
Thanks, Philippe. That's a useful function.
Duncan Murdoch
Best,
Philippe Grosjean
..°}))
) ) ) ) )
( ( ( ( (Prof. Philippe Grosjean
) ) ) ) )
( ( ( ( (Numerical Ecology of Aquatic Systems
, or ?setRepositories.
Duncan Murdoch
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained
you can just use the system man pages, as ?tcltk tells
you. (And by the way, tkgetOpenFile opens a reasonably nice window for
me when run on a Linux system: so this is probably a problem with your
local installation of TCL/TK.)
Duncan Murdoch
__
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. Listing a variable name on a line by
itself only causes it to be printed when you're typing at the console,
not when it's a line in a function or a line sourced from a file. You
need to call print() explicitly in those cases.
Duncan Murdoch
__
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you've given reasonable documentation on how to do that.
I wish we had a good way to refer to these files from the rest of the
help system.
Duncan Murdoch
Alberto Monteiro
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a very strange .First.lib. I think you'll have more success with
a simpler one:
.First.lib - function(libname, pkgname)
library.dynam(mypkg, package=pkgname, lib.loc=libname)
(and sss is not needed at all).
Duncan Murdoch
f - function(x,y) x+y
g -function(x,y) x-y
Thanks for any
of the table.
You should simplify your loop until it's something you can post for us
to try. Chances are you'll notice the error when you do that, but if
not, someone else will be able to tell you what's going on.
Without a reproducible example, it's more or less hopeless.
Duncan Murdoch
On 7/3/2007 10:23 AM, Ivan Baxter wrote:
Duncan Murdoch wrote:
On 7/3/2007 1:59 AM, Ivan Baxter wrote:
I am having trouble printing a table out to the GUI display when the
table is created and printed within a loop.
I get a Error: syntax error message
If I comment out the print
a difference.
Duncan Murdoch
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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.
by it.
Duncan Murdoch
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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.
.' (emphasis added)
floor(3) == 2
True
3 is not greater than 3, but it is greater than 2, so the result you
quote above is wrong. You should see
floor(3)
[1] 3
floor(3) == 2
[1] FALSE
Do you really see the result you posted?
Duncan Murdoch
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R
that it consider
mylab as package instead of its value.
One of the examples in ?library shows how to do what you want.
pkg - splines
library(pkg, character.only = TRUE)
Duncan Murdoch
Weiwei Shi, Ph.D
Research Scientist
GeneGO, Inc.
P.S. If you think this was helpful, one of the ways
when you write subsequent lines).
Duncan Murdoch
blank - data.frame(name=character(0), wife=character(0),
no.children=numeric(0))
write.csv(blank, 'file.csv')
Thank you for your help again and your time is highly appreciated!
Best Wishes
Yuchen Luo
I
On 6/23/07, Duncan Murdoch
the data frame as you calculate new
records and rewrite the whole thing, or just append them to the file
with append=TRUE and writing with col.names=FALSE.
Duncan Murdoch
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. They are much simpler, but much less
flexible.
Duncan Murdoch
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal
with
log1p(tasa)
if the authors of the Matrix package have written a method for log1p();
if not, you'll probably have to do it yourself.
Duncan Murdoch
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PLEASE do read
:
and then I'd consider temporary conversion to a matrix to speed things
up. As Knuth said, premature optimization is the root of all evil.
Duncan Murdoch
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PLEASE do read
as the slot name contained in chara really is a slot.
Duncan Murdoch
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented
On 21/06/2007 7:39 PM, Judith Flores wrote:
Hi,
I need to add exponents to a label in one of the
axes of a plot, how can I do this?
See ?plotmath. For example,
plot(1,2, xlab=expression(x^2), ylab=expression(exp(-x^2/2)))
Duncan Murdoch
- function(x, A) {
if (A) x[-1] - 0
else x[-2] - 0
x
}
then call your function by passing modifyx(x, A) instead of just x.
You don't need to put A or x in the argument list of the function, but
it probably makes sense to do so.
Duncan Murdoch
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