Hi,
I am trying to refine models of a continuous response variable and a
number of categorical predictor variables. I know of some model
refinement tools available in R that help in the selection of model
terms like dropterm and addterm from MASS etc. However, I would also
like to try to refine
Tony == Tony Plate [EMAIL PROTECTED]
on Tue, 21 Oct 2003 10:17:05 -0600 writes:
Tony I've also been thinking about how to specify that 'along' should be
Tony length(dim)+1. At the moment one can specify any number from 0 up to
Tony length(dim)+1, but as you point out you have
Is it possible to create a database in MySQL via RMySQL?
Also, is the format for the authorization field
'userName/[EMAIL PROTECTED]'? I saw an example like this somewhere
in the documenation, but I haven't found the actual specification.
Thanks,
Barnet Wagman
Héctor == Héctor Villafuerte D [EMAIL PROTECTED]
on Tue, 21 Oct 2003 17:29:27 -0800 writes:
Héctor Hi all,
Héctor I'm trying to access my account at
Héctor https://www.stat.math.ethz.ch/mailman/options/r-help
Héctor but the following appears:
Héctor *Error:
Hi,
I try to make a multivariate ARMA analysis.
Function arima (from ts packages only accept univariate argument.
Does an R function exist for multivariate analysis ?
Thanks
Vincent Spiesser
__
[EMAIL PROTECTED] mailing list
Look in package bundle DSE for multiple ARMA processes.
(I would say multivariate and multiple time series are different things,
but guess multiple is what you want.)
On Thu, 23 Oct 2003, Vincent Spiesser wrote:
Hi,
I try to make a multivariate ARMA analysis.
Function arima (from ts
library(DBI)
library(RMySQL)
drv - dbDriver(MySQL)
con - dbConnect(drv,test,root,)
dbListTables(con)
[1] dmjanuar dmjulidmmai model0ndata newtable
[7] uebergang weka
mysqlQuickSQL(con, Create table newTable( attr1 int, attr2 int))
dbListTables(con)
[1] dmjanuar dmjulidmmai
Hi,
I don't know much about non-linear models, but there is another possibility to
fit these models:
1) get some starting values for the parameters
2) take the derivatives of the model with respect to the parameters at the
point of the starting values of the parameters
3) perform a linear
In Germany the Unemployment Agency uses a sectioning of the german map that
is different from the usual Administrative Boundaries.
Some demographic data are available in Administrative Boundaries only, some
in Unemployment Boundaries only.
I would like to generate estimates in one boundary
Hello,
I am writing a package with a collection of several models. In order to
allow users to play interactively with the models (in contrast to
hacking lengthy scripts), I want to put all what is needed to run a
particular model into a single list object for each model.
Then there will be a
On Thursday 23 October 2003 13:36, Jens Oehlschlägel wrote:
In Germany the Unemployment Agency uses a sectioning of the german map that
is different from the usual Administrative Boundaries.
Some demographic data are available in Administrative Boundaries only, some
in Unemployment Boundaries
Hello, my question is,Exist a command for to make input from parallel port
, i have a sensor connected to parallel port, and i need have the data in
real time,i need obtain the data and put in .txt file. Thank Ruben
__
[EMAIL PROTECTED] mailing list
I think what you want to write is:
setParms(lvmodel) - list(k1=0.5)
which means that you need to define an assignment function.
If you are using S3 style OOP (which you appear to be), then
do something along the lines of:
'setParms-' - function(x, value) UseMethod('setParms-')
Is there a way I can combine multiple lines of R commands (see below) into
a little code snippet or a program in a text file, and run it in R to do my
analysis?
sink(mysink.txt)
for (..) {
code for creating a dataframe from supplied data
code for doing anova from selected data
}
Thanks very
I have a plot with 13 lines and R repeats colors. Is there any way to make R
not repeat colors, or is this just a fundamental limitation on R's part to
say have only 8 colors that it can use?
Anna
__
[EMAIL PROTECTED] mailing list
source(mycode.R)
On Thursday 23 October 2003 15:29, Subramanian Karthikeyan wrote:
Is there a way I can combine multiple lines of R commands (see below) into
a little code snippet or a program in a text file, and run it in R to do my
analysis?
sink(mysink.txt)
for (..) {
code for
Anna Pryor wrote:
I have a plot with 13 lines and R repeats colors. Is there any way to make R
not repeat colors, or is this just a fundamental limitation on R's part to
say have only 8 colors that it can use?
See ?colors and the other help topics linked in its See Also Section.
Uwe Ligges
Subramanian Karthikeyan wrote:
Is there a way I can combine multiple lines of R commands (see below) into
a little code snippet or a program in a text file, and run it in R to do my
analysis?
sink(mysink.txt)
for (..) {
code for creating a dataframe from supplied data
code for doing anova
Hello all,
Does anyone know of any already written functions for carrying out
stochastic dynamic programming in R?
Thanks!
Martin
--
Martin Biuw
Sea Mammal Research Unit
Gatty Marine Laboratory, University of St Andrews
St Andrews, Fife KY16 8PA
Scotland
Ph: +44-(0)1334-462637
Fax:
I've just installed R 1.0.8 (for Windows) and I tried to install the package Quantreg
directly from Cran but it's not in the list of downlodable packages.
I tried also downloading the zip file and then install it but there is an error.
How can I do it?
Thank you
[[alternative HTML version
On Thu, Oct 23, 2003 at 09:29:46AM -0400, Subramanian Karthikeyan wrote:
Is there a way I can combine multiple lines of R commands (see below) into
a little code snippet or a program in a text file, and run it in R to do my
analysis?
It's quite easy: Write your R code with your favorite text
I'm not sure why quantreg isn't in the windows binaries on CRAN,
perhaps Uwe can explain this...if there is a problem I'd be happy
to try to help, but I don't have access to a windows machine myself.
url:www.econ.uiuc.edu/~roger/my.htmlRoger Koenker
email [EMAIL PROTECTED]
Radaelli Paolo - Dottorati di Ricerca wrote:
I've just installed R 1.0.8 (for Windows) and I tried to install the package Quantreg
directly from Cran but it's not in the list of downlodable packages.
I tried also downloading the zip file and then install it but there is an error.
How can I do
Dear all,
I am looking for a convenient way to model a binary choice variable in R.
Would you suggest glm() with family=binomial(link=probit))? Is there something more
focused on that kind of analysis? Or am I plainly wrong?
Cheers and thanx for your answers
Giovanni
Giovanni Millo
RD Dept.
Arne Henningsen wrote:
Hi,
I don't know much about non-linear models, but there is another possibility to
fit these models:
1) get some starting values for the parameters
2) take the derivatives of the model with respect to the parameters at the
point of the starting values of the parameters
Sorry, it is my bad.
I mean genetic algorithm. It seems genoud {rgenoud} is the one I am
looking for.
On Thu, 2003-10-23 at 09:51, zhu wang wrote:
Dear all,
Is there any generic algorithm code for optimization implemented in R? I
searched without success.
Thanks,
--
Zhu Wang
Are you sure?
look at nlm on base pkg and at pkgs nls nlme ...
all pkgs to minimize something optimize
or better, what signify optimize for you?
Best
A.S.
Alessandro Semeria
Models and Simulations Laboratory
Montecatini Environmental Research Center (Edison Group),
Radaelli Paolo - Dottorati di Ricerca wrote:
I saw the read-me but I didn't undersstand wich is the problem. I only know
that in a previous version of R I installed on my pc it was all ok.
Yes, but on the recent version it is *not* OK.
Thomas Petzoldt wrote:
Hello,
I am writing a package with a collection of several models. In order to
allow users to play interactively with the models (in contrast to
hacking lengthy scripts), I want to put all what is needed to run a
particular model into a single list object for each model.
Look at pkg gafit
Bye
A.S.
Alessandro Semeria
Models and Simulations Laboratory
Montecatini Environmental Research Center (Edison Group),
Via Ciro Menotti 48,
48023 Marina di Ravenna (RA), Italy
Tel. +39 544 536811
Fax. +39 544 538663
E-mail: [EMAIL PROTECTED]
Hi,
I have read some of the papers on weighted clustering but those weigths
are with respect to variables (say we are clustering height measured in
cms and weights in tons etc) rather than each point itself and hence they
just multiply the distances with the weights. In my case, it is something
Hi,
sorry, I do not have any references, it was only an intuitive idea (but
there might be references somewhere out in space).
The idea is that you can indeed weight the points. For this you have to
multiply the contribution of each point to the target function by the
weight, and you have to
Dear all,
Given a LME model (following the notation of Pinheiro and Bates 2000) y_i
= X_i*beta + Z_i*b_i + e_i, is it possible to extract the
variance-covariance matrix for the estimated beta_i hat and b_i hat from the
lme fitted object?
The reason for needing this is because I want to have
Dear R people:
I've written a rather extensive simulation in R, much of which I've
ported to C. I did all of this in Linux, where it works great. On a
Windows machine, it compiles without errors or warnings, but when it
runs, it segfaults.
Here are the exact lines:
void init(SEXP rho){
Thomas Lumley wrote:
See the help pages for color() and palette(), and perhaps the RColorBrewer
package.
Splus lets you define colour palettes in its Gui, using a nice little
notation where you specify something like black 8 white 6 red to get a
17-colour palette with 8 colours between balck
On Thu, 23 Oct 2003, Barry Rowlingson wrote:
Thomas Lumley wrote:
See the help pages for color() and palette(), and perhaps the RColorBrewer
package.
Splus lets you define colour palettes in its Gui, using a nice little
notation where you specify something like black 8 white 6 red to get
Hi.
(B
(B Here is GA. I've never used this.
(B
(B http://www.dst.unive.it/~claudio/R/index.html#ga
(B
(B But this can deal with GP(genetic programming)?
(B
(B Cheers.
(B
(B__
(B[EMAIL PROTECTED] mailing list
Thomas Lumley wrote:
It isn't, but it works fairly well with well chosen colors (for example,
linearly interpolating the RColorBrewer sequential or diverging schemes
gives quite nice color ramps). It's unlikely to work for producing
palettes for 13 different lines.
Indeedy. Perhaps the original
Haifeng \(Kevin\) Xie [EMAIL PROTECTED] writes:
Given a LME model (following the notation of Pinheiro and Bates 2000) y_i
= X_i*beta + Z_i*b_i + e_i, is it possible to extract the
variance-covariance matrix for the estimated beta_i hat and b_i hat from the
lme fitted object?
Not easily.
i having issues installing Rgraphviz. i installed the prereqs
from the att bell labs. the latest. i'm using R 1.8. below are
my error messages. any help will be appreciated.
thanks,
--
Yectli
* Installing *source* package 'Rgraphviz' ...
** libs
`Rgraphviz.so' is up to date.
** R
** inst
**
Could it be that you meant genetic (rather than generic) algorithm? If
so, from the package descriptions, the gafit and seao packages on CRAN
might be relevant.
HTH,
Andy
-Original Message-
From: zhu wang [mailto:[EMAIL PROTECTED]
Sent: Thursday, October 23, 2003 10:51 AM
To:
Hello,
Seems like it is almost working properly. I was able to run examples calling
R from Java successfully for the java code below. However, some commands,
such as objects when not commented out, give me the following error? If
you could point me to the correct place to find a solution, I would
I was trying to create a function with a value computed at creation time,
using substitute(), but I got results I don't understand:
this.is.R
Error: Object this.is.R not found
substitute(this.is.R - function() X,
list(X=!is.null(options(CRAN)[[1]])))
this.is.R - function() TRUE
# the above
Vincent Spiesser wrote:
Hi,
I try to make a multivariate ARMA analysis.
Function arima (from ts packages only accept univariate argument.
Does an R function exist for multivariate analysis ?
Thanks
Vincent Spiesser
The dse bundle on CRAN has functions for VARX multivariate time series
models.
Hi-
As far as I know, some of the error messages results from the fact that you
either did not install the package or did not load the package.
If you did not install the package, you can install from R's GUI (my
experiences are based on the Windows Version), and load them by type
- Original Message -
From: Orlando Zacarias [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Sent: Thursday, October 23, 2003 6:56 PM
Subject: RE: [R] adjacency matrix
Hi once again,
Now i have been trying to run the R changed example from
Dear R-listers,
I am now using principal curves for data analysis.
The definition of it required the accurate concept
of curve continuity (C0, C1, ..., CK) and curve
smoothness.
So if anyone can introduce the exact definition
of continuous for curves and what is the most
popular textbooks for
On Thu, 23 Oct 2003, Anna Pryor wrote:
I've tried looking at ?colors and ?palette and if I'm understanding it
correctly, I'm supposed to type in (for example) palette(rainbow(13)) before
I type in my plot (of 13 lines) if I want 13 different colors. But this does
not work. Other things that
I believe you want plot(blah blah, col=palette(rainbow(13)))
HTH,
Jim
James W. MacDonald
Affymetrix and cDNA Microarray Core
University of Michigan Cancer Center
1500 E. Medical Center Drive
7410 CCGC
Ann Arbor MI 48109
734-647-5623
Anna Pryor [EMAIL PROTECTED] 10/23/03 02:19PM
I've tried
Tony Plate [EMAIL PROTECTED] writes:
Why is the body of the function X when I substituted a different
expression for X? Also, given that the body of the function is X, how
does the function evaluate to TRUE since X is not defined anywhere
(except in a list that should have been discarded.)
It happened for the second time in a week that a Windows binary for a
CRAN package was not availabe (Hmisc and quantreg) although the
package maintainer would have been willing to try to fix the problems
that prevented automatic pre-compilation if he would have realized
that there is a problem
You are right, of course, it would be nice to have notification,
but I'm also sympathetic to Uwe's situation, and not everything
that could be automated, could be _easily_ automated within the
constraints imposed by the rest of world. The lesson I've drawn
from this is that complaints will
Hi R-Helpers:
Im trying to fit the same linear model to a bunch of variables in a data
frame, so I was trying to adapt the codes John Fox, Spencer Graves and Peter
Dalgaard proposed and discused yesterday on this e-mail list:
for (y in df[, 3:5]) {
mod = lm(y ~ Trt*Dose, data = x, contrasts =
On Thu, 23 Oct 2003, James MacDonald wrote:
I believe you want plot(blah blah, col=palette(rainbow(13)))
No. palette() sets the default palette, so
eg
palette(rainbow(13))
plot(1:13,col=1:13)
will plot in the new palette.
-thomas
__
How about the following:
AList - vector(mode=list, length=3)
for(i in 1:3){
y - df[,i])
mod - lm(y~Tr*Dose, data=x, contrasts=list(Tr=contr.sum, Dose=contr.sum))
AList[[i]] - Anova(mod, type=III)
}
hope this helps. spencer graves
CENDOYA, Gabriela wrote:
Hi R-Helpers:
Im trying to fit the same
Jens Oehlschlägel wrote:
AND
- is there a general function in R available to map demographic data
between two boundary systems
OR
- is there an efficient R function that can determine the amount of area
overlap between two general polygons (beyond gpclib)
I am willing to share
Peter Dalgaard [EMAIL PROTECTED] writes:
CENDOYA, Gabriela [EMAIL PROTECTED] writes:
for (myname in names(myframe)){
mycall - substitute(lm(myvar~etc.etc.),list(myvar=as.name(myname)))
myfit - eval(mycall)
print(summary(myfit))
} ## by Peter Dalgaard
But instead of
Hi.
How about GEOS available at.
http://geos.refractions.net/
GEOS supports hole for clipping.
I could build it in MiGW.
However I've only executed demo codes.
- Original Message -
From: Ross Ihaka [EMAIL PROTECTED]
To: Jens Oehlschlägel [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Hello all.
I was wondering if anyone had insight into how I might generate a large
number of data sets/vectors, where each of the data sets/vectors have a
different name?
For example, suppose I wanted to generate N data sets/vectors, each with a
different name such as:
Random.Data.1 -
Have you considered using paste(..., sep=) to generate either
the object names or file names you want?
If you want objects in R, have you considered assign? If you
want files, then have you considered write?
hope this helps.
spencer graves
Ken Kelley wrote:
Hello all.
You need paste and assign functions. Paste will create a sequence of names
and assign will give values to the variables with these names.
This modification of your loop should work
for(i in 1:N)
{
assign(paste(Random.Data., i, sep=''), rnorm(10, 0, 1))
}
Cheers,
Andy
Hisaji Ono wrote:
Hi.
How about GEOS available at.
http://geos.refractions.net/
GEOS supports hole for clipping.
I could build it in MiGW.
However I've only executed demo codes.
Very nice reference. I will be taking a close look through it.
The Greiner-Hormann algorithm is still pretty
Hi all,
When I use lda for discriminant analysis, should I
normalized my data (variables) to mean 0, variance 1
before running lda if my variables might not be
exactly on the same scale? I have this question
because in principle component analysis, this is
indeed an issue where we can choose
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Integrated Performance
I am just beginning to use R 1.7.1 on Windows XP and can not do a simple scan of a
.txt file with integer data separated by tabs.
First I figured out that I need to open a connection to the file (which isn't
mentioned in scan()).
But now when I scan, I get Read 0 items. What can I do?
Is there any way to search a column of a table?
I read in a table and I want to create a subset based on the criteria that a
certain column (filled with words) has a word which starts with a certain
letter. The only method I have seen that searches this way is apropos(), but
that doesn't seem
hi, guys:
I have a question on how to read data from file in which the length of each
line is unfixed.
For instance, the data in sample.dat are:
1 2 3 4
5 6 7
8
I want to read this kind of data into a matrix as:
1 2 3 4
5 6 7 0
8 0 0 0
Thank you
Jianbing Wu
Nicole Baggette wrote:
Is there any way to search a column of a table?
I read in a table and I want to create a subset based on the criteria that a
certain column (filled with words) has a word which starts with a certain
letter. The only method I have seen that searches this way is
Janice Warner wrote:
I am just beginning to use R 1.7.1 on Windows XP and can not do a simple
scan of a .txt file with integer data separated by tabs.
First I figured out that I need to open a connection to the file
(which isn't mentioned in scan()).
It isn't mentioned because it isn't
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