Hi,
I have a question of classification on imbalanced dataset. I am
wondering if there is a package which can solve this problem via
sampling approach, like one-sided selection.
A follow-up question is, how to select those 'representative' samples
and remove noise/borderlines and redundancy in or
> Hi,
>
> I have C/C++ code from which I wish I could call R
> to
> do something useful.
By calling I mean linking with the R shared library,
instead of R BATCH.
In particular, I want to use regression functions such
as ridge and locfit.
>
> I saw a 2003 message by Thomas saying that "You ca
Hi,
I have C/C++ code from which I wish I could call R to
do something useful.
I saw a 2003 message by Thomas saying that "You can
compile R as a shared library, which allows you to
construct and evaluate R expressions from C." Any
more information would be helpful. I am looking for
some docume
On 23-Jul-05 Prof Brian Ripley wrote:
> On Sat, 23 Jul 2005, Dennis Fisher wrote:
>
>> The pdf man page contains the following text:
>>
>> pdf(file = ifelse(onefile, "Rplots.pdf", "Rplot%03d.pdf"),
>> width = 6, height = 6, onefile = TRUE, family = "Helvetica",
>> title = "R
On Sat, 23 Jul 2005, Dennis Fisher wrote:
> The pdf man page contains the following text:
>
> pdf(file = ifelse(onefile, "Rplots.pdf", "Rplot%03d.pdf"),
> width = 6, height = 6, onefile = TRUE, family = "Helvetica",
> title = "R Graphics Output", fonts = NULL, version = "1.1
Dear all,
I have uploaded to CRAN a new package: tseriesChaos.
This is an early version (0.1) with basic tools for the explorative
analysis of nonlinear time series motivated by chaos theory. Until now,
the package is largely inspired by the TISEAN project (by Rainer Hegger,
Holger Kantz and Thoma
The pdf man page contains the following text:
pdf(file = ifelse(onefile, "Rplots.pdf", "Rplot%03d.pdf"),
width = 6, height = 6, onefile = TRUE, family = "Helvetica",
title = "R Graphics Output", fonts = NULL, version = "1.1",
paper, encoding, bg, fg, pointsize)
Here are a few tweaks. We form a matrix and use round
and format to automatically get the right number of
decimals and widths right. We have added extra digits
to show that they do not affect the result. Also the paste in the
R^2 line was eliminated.
nn <- matrix(c(-10.661, 1.961,
On Fri, 22 Jul 2005, Denis Chabot wrote:
> Hi,
>
> I got no reply to this:
> Le 16-Jul-05 à 2:42 PM, Denis Chabot a écrit :
>
> > Hi,
> >
> > Is there a way, preferably with R, to read shapefiles and transform
> > them in a format that I could then use with package PBSmapping?
> >
> > I have b
On Sat, 23 Jul 2005, Dan Bolser wrote:
>On Fri, 22 Jul 2005, Marc Schwartz (via MN) wrote:
>
>>Ok guys,
>>
>>So I played around with this a bit, going back to Dan's original
>>requirements and using Thomas' do.call() approach with legend(). Gabor's
>>approach using sapply() will also work here. I
On Fri, 22 Jul 2005, Marc Schwartz (via MN) wrote:
>Ok guys,
>
>So I played around with this a bit, going back to Dan's original
>requirements and using Thomas' do.call() approach with legend(). Gabor's
>approach using sapply() will also work here. I have the following:
>
># Note the leading space
"John Sorkin" <[EMAIL PROTECTED]> writes:
> I am trying to install
> R.2.1.1 under Linux FC4 using RPM. During the installation I get the
> following message:
> The following package could not be found on your system. Installation
> cannot continue until it is installed.
>
> The package in ques
I am trying to install
R.2.1.1 under Linux FC4 using RPM. During the installation I get the
following message:
The following package could not be found on your system. Installation
cannot continue until it is installed.
The package in question of libblas.so.3.
Does anyone know where I can get t
Worik Turei stanton wrote:
> Friends
>
> I am new to R (and statistics) so am struggling a bit.
>
> Briefly...
>
> I am interested in getting the P-Value from cor(X) where X is a matrix.
>
> I have found cor.test.
>
> Verbosely...
>
> I have 4 vectors and can generate the corellation matrix..
Nick Drew wrote:
> Agreed, It takes a lot of work for one to create
> his/her first package. And
> there are many opportunities to get it wrong.
>
> I just created my first package, with thanks to Gabor,
> Peter Rossi (and his
> excellent document at
> http://gsbwww.uchicago.edu/fac/peter.rossi/re
These functions are based on posts to either R-Help or S-News by
Gabor Grothendieck and Bill Venables.
# pairwise sample size
# Gabor G - 11/23/2004 R-help List
pn <- function(X){crossprod(!is.na(X))}
cor.prob <- function(X){
# Correlations Below Main Diagonal
# Significance Tests with Pairwi
Friends
I am new to R (and statistics) so am struggling a bit.
Briefly...
I am interested in getting the P-Value from cor(X) where X is a matrix.
I have found cor.test.
Verbosely...
I have 4 vectors and can generate the corellation matrix...
> cor(cbind(X1, X2, X3, X4))
X1
Wensui Liu wrote:
> you might need quit("yes") when you exit R.
I think nobody want to save the whole workspace if just one object is of
interest, hence you save(), as already mentioned in a former post.
Uwe Ligges
> On 7/22/05, Baoqiang Cao <[EMAIL PROTECTED]> wrote:
>
>>Hello Uwe Ligges,
>>
>From what I understand, you want to set up a factor with the levels
reversed. It is not that `5 is larger than 1', but that you created a
factor with the levels in alphabetic order. Lattice plots in the order of
the levels.
Something like f <- factor(f, levels=rev(levels(f))) will do this.
What does fit.dist do that fitdistr (MASS) does not in this context? (It
plots, but that is very easy to do in base R. However, to see if a
Poisson fits you need a test of goodness-of-fit.)
BTW, `decompress and store the files in your "library" folder' is on no OS
(you did not mention one but
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