i study the code of function ave,but i can understand one line of the syntax.
> ave
function (x, ..., FUN = mean)
{
n <- length(list(...))
if (n) {
g <- interaction(...)
split(x, g) <- lapply(split(x, g), FUN)
}
else x[] <- FUN(x)
x
}
my question is : what does
On 19/06/2005, at 11:31 AM, Duncan Murdoch wrote:
>> PS The immediate cause of the header file problems was src/
>> gnuwin32/ fixed/h/config.h. This needs to be regenerated for
>> every build configuration. This is not documented except
>> obliquely in src/ gnuwin32/Maintainer.notes
>>
>>
Bill Northcott wrote:
> On 18/06/2005, at 10:34 PM, Uwe Ligges wrote:
>
>>>I am trying without success to build the R-2.1.0 sources on
>>>Windows 2003 server.
>>>I have MinGW/bin in front of cygwin/bin in the Windows path.
>
>
>>I don't think it is a good idea to leave cygwin in your path for
On 18/06/2005, at 10:34 PM, Uwe Ligges wrote:
>> I am trying without success to build the R-2.1.0 sources on
>> Windows 2003 server.
>> I have MinGW/bin in front of cygwin/bin in the Windows path.
> I don't think it is a good idea to leave cygwin in your path for
> compiling R, even using it
Hi,
A new version of "caMassClass" package was released today. The package
contain pipeline for processing and classification of protein mass spectra
data.
The main change is off-spinning from the library collection of generic
functions into a new package "caTools". This package, which might be us
Version 1.1-0 of bayesm is now available on CRAN.
This version includes Bayesian inference for the NBD(Poisson) regression
model and a hierarchical version of the same. It also includes an additional
dataset with count data and various covariates.
Comments and suggestions for improvement are mo
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] Behalf Of Bókony Veronika
> Sent: 18 June 2005 14:00
> To: r-help@stat.math.ethz.ch
> Subject: [R] how 'stepAIC' selects?
>
>
> Dear all,
> Could anyone please tell me how 'step' or 'stepAIC' works? Does it
> sim
Bókony Veronika wrote:
> Dear all,
> Could anyone please tell me how 'step' or 'stepAIC' works? Does it
> simply select the model with the smallest AIC from all the possible
> models? Or does it perform any test eg. whether the decrease
No. It works *stepwise*, hence does not inspect all possi
Dear all,
Could anyone please tell me how 'step' or 'stepAIC' works? Does it
simply select the model with the smallest AIC from all the possible
models? Or does it perform any test eg. whether the decrease
in "information content" between a model with a given predictor and
another without it is
Amir Safari wrote:
>
>
> Hi
> I want to get the values of a vector which I have its indices. How it is
> possible?
> For example after clustering , I can access to the indices of the first
> cluster using:
> first<- which(clusters$clustering==1)
> first give me the indices, but how can I acc
Bill Northcott wrote:
> I am trying without success to build the R-2.1.0 sources on Windows
> 2003 server.
>
> I have MinGW/bin in front of cygwin/bin in the Windows path.
>
> However, I try to build, I get failures trying to include headers
> which are not part of MinGW. I am definitely us
In follow up to Prof. Ripley's post, having participated in the
referenced r-devel thread, I would note that I have been able to build
Version 2.1.1 beta (2005-06-17) and all CRAN packages from source using
both FC4 fortran compilers.
However, I am back to using g77 based upon Prof. Ripley's
recom
Thorstensen Nicolas wrote:
> Hi !
>
> how can I do a k-fold crossvalidation with neural networks?
For "feed-forward neural networks with a single hidden layer" see
package "nnet" in bundle "VR" (already installed). For "automatical"
crossvalidation see, e.g., function errorest() in package "ip
Piccone, Jason E. wrote:
> Greetings fellow humans,
>
> I am attempting to export a text file after using the MatchIt package to
> match control with treatment subjects. I attempted to write.table and used
> the following syntax:
>
> "write.table(social,"shaka.txt",sep="
> ",quote=FALSE,row.
There has been discussion of this on R-devel in the context of the release
of 2.1.1.
FC4 contains gfortran, not g77 (unless you install everything when you
get g77 from gcc-3.2.3 in some compatibility RPM). This is not a bug: R
compiled on one OS (or even machine) is not expected to work on an
I had installed R from source on Fedora Core 3. Then I upgraded
to Fedora Core 4, but left R alone. R worked fine, until I trued
to update.packages(). Even then, many packages updated just
fine, but two of them, cluster and mgcv, failed with the
following error message (using cluster as an examp
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