Hi Sir
When I close R console and save work space then the following message
appears
Error in gzfile(file, "wb") : unable to open connection
In addition: Warning message:
cannot open compressed file '.RDataTmp' in: gzfile(file, "wb")
How to deal with this?
Regards
--
AMINA SHAHZADI
Department o
Hi there,
I have a multiple for loop over a list of data frames
for ( i in 1:(N-1) ) {
for ( j in (i+1):N ) {
for ( p in 1:M ) {
v_i[p]= alist[[p]][i,"v"]
v_j[p]= alist[[p]][j,"v"]
}
rho_s = cor(v_i, v_j, method =
Hi,
I have been able to generate association rules for Market Basket Analysis
using the following codes:
***
library("arules")
rules <- read.csv("write1.csv",na.strings=c("
John Wilkinson wrote:
> Error: Invalid font type
> In addition: Warning messages:
> 1: font family not found in PostScript font database
> 2: font family not found in PostScript font database
>
>
>
Yes. Cause, workarounds, and a note that it is fixed in R-patched is here:
http://tolstoy.n
Hi Dirk,
thanks a lot for your quick replay.
Now, the installation is done !
Cheers,
Christian
Dirk Eddelbuettel wrote:
> Hi Christian,
>
> On 16 October 2007 at 15:39, Christian Kohler wrote:
> | Dear R-Users,
> |
> | I am having some trouble getting an installation of RCurl 0.8-1 to work
>
Hi, Jim.
Actually you need to have ad "data.frame" object of define X and Y variables
in it.
DATA$X must contain all data for X varibales (DATA$NIR in example)
DATA$Y response variable(s) for your X matrix data: (DATA$density in example)
For example you have X variables in matrix and one Y varia
Hi
Thanks for you reply. I wonder if you can help me further.
During my degree, I was taught that a factor should be specified as
random if it represents a sample of the total population. So in my case,
I need to test the factor genotype to see if genotypes are significantly
different from eac
Hello,
I would like to compute a weighted combination of matrices.
I have a number of matrices, arranged in a 3D-array, say:
z = array(rep(1:3,c(9,9,9)),c(3,3,3))
so that z[,,1] is my first matrix, and z[,,2] and z[,,3] the second and
third one, and a vector of coefficients:
w = rep(1/3,3)
I
hello,
I want to simulate 200 times the mean of a joint probability (y1) and 200
times the mean of another joint distribution (y2),
that is I'm expecting to get 200 means of y1 and 200 means of y2.
y1 and y2 are probabilities that I calculate from the marginal prob. (z1 and
z2 respectively) multip
Hello,
suppose one has the following values
x1 <- rnorm(10,5,1)
x2 <- rgamma(10,5,1)
y <- rnorm(10,4,1)
mydat <- data.frame(y,x1,x2)
then one can use glm like
mod <- glm(y~x1+x2, data=mydat, family=gaussian)
But how could I estimate y_hat?
Thanks alot!
Sam
--
Warnings are a good thing and can help to find errors in data.
But with newer R versions I get more and more warnings
which I would like to suppress in defined circumstances.
In the manual of as.numeric() is noticed:
as.numeric(c("-.1"," 2.7 ","B")) # (-0.1, 2.7, NA) + warning
If I know
>
> The best way to read or write Excel files is with the RExcel package. The
Well, I'd argue, that often 'the best way' is to use the xlsReadWrite
package, but I am biased...
There are some precondition:
- you have to be on windows (but my new soon-to-arrive notebook will be a
Mac, therefore..
Hi
you need the tensor library:
> library(tensor)
> z <- array(runif(27),rep(3,3))
> w <- runif(3)
> w[1]* z[,,1] + w[2]*z[,,2] + w[3]*z[,,3]
[,1] [,2] [,3]
[1,] 1.2700333 1.1920113 0.8015904
[2,] 0.5175217 0.7808569 0.6306053
[3,] 0.8386015 0.6143882 0.6382314
> tens
Hi
I create one pdf file with plots via pdf() and one text file with text
via sink() that works very nice. But I would prefer to have one pdf file
with plots and the text which I store in the te=xt file via sink(). I.e.
x.lm<-lm(...)
pdf()
plot(x.lm)
NOW THE TEXT OF summary(xlm) IN THE PDF FILE
dear list
I am student M.S. statistics in department statistics . I am working in the
function "nls" in the [R 2.3.1] with 246 data and want to fit the "exp" model
to vectors( v and u ) but I have
a problem to use it
u
5.00e-13 2.179057e+03 6.537171e+03 1.089529e+04 1.525340e+04
1.9
On Wed, 17 Oct 2007, Rainer M Krug wrote:
> Hi
>
> I create one pdf file with plots via pdf() and one text file with text
> via sink() that works very nice. But I would prefer to have one pdf file
> with plots and the text which I store in the te=xt file via sink(). I.e.
>
> x.lm<-lm(...)
> pdf()
Prof Brian Ripley wrote:
> On Wed, 17 Oct 2007, Rainer M Krug wrote:
>
>> Hi
>>
>> I create one pdf file with plots via pdf() and one text file with text
>> via sink() that works very nice. But I would prefer to have one pdf file
>> with plots and the text which I store in the te=xt file via sink(
I get the same problem with this matrix with R 2.6.0 on a 64 bit (Intel Xeon)
machine running Suse 9, but the svd is fine on a 32 bit windows machine ( R
2.6.0 again).
`badx' has another weird property (64 bit linux version)...
> x <- matrix(runif(prod(dim(badx))),nrow(badx),ncol(badx))
> syst
Thank you, Deepayan, that works perfectly!
Regards,
Sarah
Deepayan Sarkar wrote:
> On 10/16/07, Sarah Barry <[EMAIL PROTECTED]> wrote:
>
>>Hi,
>>
>>I am trying to produce a 30x30 lattice grid. The 30 variables naturally
>>fall into three groups of ten and I would like to add thicker axis lines
On Wed, 17 Oct 2007, Wolfram Fischer wrote:
> Warnings are a good thing and can help to find errors in data.
> But with newer R versions I get more and more warnings
> which I would like to suppress in defined circumstances.
This warning happened in R 1.8.1, for example: it is not new. I don't
I use Sweave for this kind of purposes.
HTH,
Thierry
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature
and Forest
Cel biometrie, methodologie en kwaliteitszorg / Section biomet
Maybe with:
> print(plot.new())
> mtext(summary(xlm))
Regards,
Olivier Delaigue
Rainer M Krug-2 wrote:
>
> Hi
>
> I create one pdf file with plots via pdf() and one text file with text
> via sink() that works very nice. But I would prefer to have one pdf file
> with plots and the text whi
ONKELINX, Thierry wrote:
> I use Sweave for this kind of purposes.
I was thinking about Sweave as well, but I don't understand how I can
use it.
Let's say I have a source file, which defines a function
DoGrowthAll <- function()
{
pdf("GrowthAll.pdf", height=11, width=8, paper="a4")
Olivier Delaigue * wrote:
> Maybe with:
>
>> print(plot.new())
>> mtext(summary(xlm))
Thanks Olivier - that sounds like an easy approach - I'll try itr out
and report back.
Rainer
>
> Regards,
>
> Olivier Delaigue
>
>
> Rainer M Krug-2 wrote:
>> Hi
>>
>> I create one pdf file with plots
Rainer M. Krug wrote:
> Olivier Delaigue * wrote:
>> Maybe with:
>>
>>> print(plot.new())
>>> mtext(summary(xlm))
>
> Thanks Olivier - that sounds like an easy approach - I'll try itr out
> and report back.
It prints the summary, but in one line which is obviously to long to fit
on one page
>
You should try with type of command:
mtext(paste("Residuals:", summary(xlm)$residuals, "Coefficients:",
summary(xlm)$coefficients, etc..., sep ="\n"))
Olivier Delaigue
Rainer M Krug-2 wrote:
>
>
> It prints the summary, but in one line which is obviously to long to fit
> on one page
>
>>>
>
John Fox, Dienstag, 16. Oktober 2007:
> Dear Ralf,
>
> Unfortunately, Anova.mlm(), and indeed Anova() more generally, won't
> handle a model with only a constant. As you point out, this isn't
> reasonable for repeated-measures ANOVA, where it should be possible to
> have only within-subjects facto
Thanks a lot - I'll try it out.
Rainer
ONKELINX, Thierry wrote:
> You create a source file ("GrowthAll.Rnw") that looks a bit like this
>
> \documentclass[11pt]{report}
> \usepackage{Sweave}
> \SweaveOpts{echo = FALSE}
> \begin{document}
>
> <>=
> x.lm <- lm()
> plot(x.lm)
> @
>
> <<>>=
> summ
Olivier Delaigue wrote:
> You should try with type of command:
>
> mtext(paste("Residuals:", summary(xlm)$residuals, "Coefficients:",
> summary(xlm)$coefficients, etc..., sep ="\n"))
I am sure this would work, but I would like to have something without to
much additional coding. Sweave seems to
You create a source file ("GrowthAll.Rnw") that looks a bit like this
\documentclass[11pt]{report}
\usepackage{Sweave}
\SweaveOpts{echo = FALSE}
\begin{document}
<>=
x.lm <- lm()
plot(x.lm)
@
<<>>=
summary(x.lm)
@
\end{document}
Then run in R:
Sweave("GrowthAll.Rnw")
system("pdflatex GrowthAl
Dear all,
I have read the on-line explanations I have found about Building R
from sources, and istalling Packages from sources...
Also, I have installed gcc4.0 and the gfrotran-4.2.1.dmg.
However, I still do not know how to use them to compile one Source
(in particular packfor_0.0-7.tar.gz)
Greetings,
I have been using lm to perform weighted linear regressions and resid to
extract the residuals. I happened upon some class notes on the internet that
described how one can specify type="pearson" in resid to extract the
weighted residuals. Where is this option documented? And if you k
Hi Sam,
I don't understand how you can estimate a separate id variance other
than the residual variance, with one observation per subject. I would
think the proper model would be
glm(y ~ 1, family='poisson)
Cheers,
Hank
On Oct 15, 2007, at 12:05 PM, Sam Field wrote:
> Group,
>
> I have count
Hello,
I have following problem.
I produce a histogram of some values and in the plot area I create 2
text boxes - one with names of statistics and one with values of these
statistics. Coded like that:
ht <-hist(x, )
...
ameant <-ameant <- paste("Ar.Mean")
...
amean <- round(mean(x), digits=
On 17/10/2007 2:23 AM, Haiyong Xu wrote:
> Hi there,
> Is there any package which can calculate the overlapping area of two
> polygons or output the coordinates of the overlapping of two polygons?
I believe gpclib can do both of those.
Duncan Murdoch
___
On 17/10/2007 6:31 AM, Sara Mouro wrote:
> Dear all,
>
>
> I have read the on-line explanations I have found about Building R
> from sources, and istalling Packages from sources...
> Also, I have installed gcc4.0 and the gfrotran-4.2.1.dmg.
>
> However, I still do not know how to use them to c
Hi there,
I've got the following problem under Windows XP, R 2.5.1:
When I'm pasting some objects:
Stadtwerksname<-"Mannheim"
Laufwerk<-"C:\\"
paste(Laufwerk,Stadtwerksname,".csv")
I get the result:
[1] "C:\\ Mannheim .csv"
The problem's are the superfluous gaps/blanks between the three parts
See the argument 'sep' in the paste function.
paste(Laufwerk,Stadtwerksname,".csv", sep="")
On 17/10/2007, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
>
> Hi there,
>
> I've got the following problem under Windows XP, R 2.5.1:
>
> When I'm pasting some objects:
>
> Stadtwerksname<-"Mannheim"
?residuals.lm
What I would do is look at the documentation for the specific
*method*. If you just look at the documentation for the generic
function, you won't find what you are looking for.
David
On 10/17/07, Tom La Bone <[EMAIL PROTECTED]> wrote:
> Greetings,
>
>
>
> I have been using lm to p
use sep="", e.g.,
paste(Laufwerk,Stadtwerksname,".csv",sep="")
On Wed, 17 Oct 2007 [EMAIL PROTECTED] wrote:
> Hi there,
>
> I've got the following problem under Windows XP, R 2.5.1:
>
> When I'm pasting some objects:
>
> Stadtwerksname<-"Mannheim"
> Laufwerk<-"C:\\"
> paste(Laufwerk,Stadtwerksn
Hi there,
Another problem for me ist to automatize the drawing of curly brackets like you
can draw with Word or PPT or other programs.
I want to draw with R 2.5.1 under Windows XP a curly bracket that begins in
point (x1,y1) and reaches (x2,y2) horizontaly.
Thx,
Thomas
___
look at the `sep' argument of ?paste(), e.g.,
Stadtwerksname <- "Mannheim"
Laufwerk <- "C:\\"
paste(Laufwerk, Stadtwerksname, ".csv", sep = "")
I hope it helps.
Best,
Dimitris
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven
Ad
Nathaniel Street wrote:
>
>
> [questions about testing significance of random effects]
>
>
Pinheiro and Bates 2000 is the standard reference for this kind of question.
The basic answer is that the Likelihood Ratio Test (implemented by anova())
is a reasonable approach (and recommended by PB
I am getting somewhere - but running system("pdflatex GrowthAll") fails,
as it does not find sweave.sty. I already linked the directory where it
can be found (/usr/lib/R/share/texmf/) into my personal texfm directory
(/texmf/tex/latex/R)\ and ran texhash (as root and as n ormal user), but
it st
If I understand your question, see the 'predict.glm' funtion.
On 17/10/2007, Samuel Okoye <[EMAIL PROTECTED]> wrote:
>
> Hello,
> suppose one has the following values
> x1 <- rnorm(10,5,1)
> x2 <- rgamma(10,5,1)
> y <- rnorm(10,4,1)
> mydat <- data.frame(y,x1,x2)
> then one can use glm like
> mod
I am relatively new to R, so this may be a much simpler question than it
seems to me. I am trying to create a function that includes two
summations, and can't figure out how. I am attaching the equation as a
pdf file. This function will then be optimized over a chosen range of
values, but right
It works fine with me (on windows). But I've copied sweave.sty into my
workdirectory. See the Sweave FAQ
(http://www.ci.tuwien.ac.at/~leisch/Sweave/FAQ.html#x1-14000A.12)
ir. Thierry Onkelinx
Instituut voor natuur- en
You can also specify the full path of the latex package, for me:
\usepackage{/usr/local/lib/R/share/texmf/Sweave}
Regards,
Romain
ONKELINX, Thierry wrote:
> It works fine with me (on windows). But I've copied sweave.sty into my
> workdirectory. See the Sweave FAQ
> (http://www.ci.tuwien.ac.at/~
Zack Darnell wrote:
> I am relatively new to R, so this may be a much simpler question than
> it seems to me. I am trying to create a function that includes two
> summations, and can't figure out how. I am attaching the equation as a
> pdf file. This function will then be optimized over a chosen
Hi All,
A few weeks ago I suggested that it would be nice to be able to submit
lines from the help files for execution. You can cut and paste them into
the console, or enter example(function) to run them all. However, I
often find myself wanting to run just a line or two, or even parts of a
line t
Dear Ralf,
Thanks for the additional suggestions -- I'll take a look at them as well.
John
John Fox, Professor
Department of Sociology
McMaster University
Hamilton, Ontario
Canada L8S 4M4
905-525-9140x23604
http://socserv.mcmaster.ca/jfox
---
Perhaps:
r <- function(n, k, theta){
return(sqrt((sum(cos(k*theta))^2 + sum(sin(k*theta))^2)/n))
}
On 17/10/2007, Zack Darnell <[EMAIL PROTECTED]> wrote:
>
> I am relatively new to R, so this may be a much simpler question than it
> seems to me. I am trying to create a function that includes
Frédéric Chiroleu wrote:
> PS : Be careful with function dudi.pca() from ade4 ; in values, "norm"
> doesn't give you what is written in the help page : "norm" returns the
> vector of standard deviations of initial variables when you choose
> "normed" PCA and the vector of standard deviations of
Latex has its own search path for packages like sweave.sty. Run the
texconfig program and look at the configuration. The TEXMF variable is
the one you're interested in. Search your system for a file called
texmf.cnf, and edit that to change the TEXMF. It sounds like the sweave
installation doe
I'm sorry, this is probably a very simple question. I am relatively
new to R and am having difficulty understanding how to use the mclust
options to change the prior probabilities for a mixture model.
I am dealing with a situation where I have 2 groups of data and it is
known that the sample
On 17 October 2007 at 10:44, Rainer M Krug wrote:
| I create one pdf file with plots via pdf() and one text file with text
| via sink() that works very nice. But I would prefer to have one pdf file
| with plots and the text which I store in the te=xt file via sink(). I.e.
|
| x.lm<-lm(...)
| pd
First thing to do is to use Rprof (?Rprof) on a subset of your data to
see where time is being spent. My guess is that most of it is in the
calls to 'cor' and if this is the case, they you have to figure out
some other algorithm.
Also if these dataframes all contain numeric information, convert t
Dear R-helpers
I would like to do a fit of the form: y = a (x+c)**b, where a, b and c
are unknown.
Does anybody know how to do it?
Thanks
Thomas
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the post
Quoting Scionforbai <[EMAIL PROTECTED]>:
> I just wonder: why should R and its community try to support such an
> awful program, with its protected formats and unmantained
> features/bugs?
> I mean, from both philosophical and technical point of view: R is free
> software and should rather try to
Dirk Eddelbuettel wrote:
> On 17 October 2007 at 10:44, Rainer M Krug wrote:
> | I create one pdf file with plots via pdf() and one text file with text
> | via sink() that works very nice. But I would prefer to have one pdf file
> | with plots and the text which I store in the te=xt file via sink
Hi!!
I am trying to generate data with specific correlation using corgen method from
the ecodist package. It does not seem to generate the data properly. I am
listing the code below. Secondly, when I put the code given below all in one
file and source it, it is unable to complete the task. But
Art Owen wrote:
> Lately I'm getting this error quite a bit:
> Error in La.svd(x, nu, nv) : error code 1 from Lapack routine 'dgesdd'
>
> I'm running R 2.5.0 on a 64 bit Intel machine running Fedora (8 I think).
> Maybe the 64 bit platform is more fragile about declaring convergence.
> I'm seeing
Up to R version 2.3.0, La.svd had an argument called "method" which allowed
one to choose between "dgesvd" and "dgesdd", but the later versions only use
"dgesdd", which is supposed to be faster for larger matrices.
I wonder if the convergence problem goes away when "dgesvd", which uses the
Lapack
Dear all,
When we perform a Wilcoxon rank sum test (on two samples with different sizes)
we get a test statistic. My question is, as the value of test statistic
increases the difference between the distributions of the two samples also
increase, right?
Thanks in advance,
João Fadista
Ravi Varadhan wrote:
> Up to R version 2.3.0, La.svd had an argument called "method" which allowed
> one to choose between "dgesvd" and "dgesdd", but the later versions only use
> "dgesdd", which is supposed to be faster for larger matrices.
>
> I wonder if the convergence problem goes away when "d
Hi,
What's "properly"? What are you trying to do - you don't
ever say.
I think you need to set population=TRUE to get the result you
appear to want (sorry, that's not entirely clear in the docs, I see).
> x <- 1:100
> y <- corgen(x=x, r=.8, epsilon=.01, population=TRUE)$y
> cor(x, y)
[
I suspect the vast majority of time is because of
growing objects.
Preallocate 'iv', 'jv', 'rho_sv' and 'rho_pv' to be their
final length and then subscript into them with their
values.
Patrick Burns
[EMAIL PROTECTED]
+44 (0)20 8525 0696
http://www.burns-stat.com
(home of S Poetry and "A Guide f
Why does R CMD INSTALL work for some packages (e.g., lme4) but not
others (e.g., nlme)?
Thanks,
Gang
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-gu
I used the wrong address. This was meant as a reply to another post.
On 10/17/07 10:55, [EMAIL PROTECTED] wrote:
> Hi Jonathan,
>
> I read your post in the R-Help. Did you get rid off the problem? I'm standing
> inf
> ront of the same problem... If you've got an answer to me to drae a curly
>
> It would be dumb to ignore the fact that Excel is a very widespread
> program, and therefore in the real world we are very likely to
> encounter data formatted by Excel.
Of course I know the widespreading of such programs. But the point is:
how can we start to change this in the real world? Peop
João Fadista wrote:
> Dear all,
>
> When we perform a Wilcoxon rank sum test (on two samples with different
> sizes) we get a test statistic. My question is, as the value of test
> statistic increases the difference between the distributions of the two
> samples also increase, right?
>
Wrong
On Wed, 17 Oct 2007, [iso-8859-1] João Fadista wrote:
> When we perform a Wilcoxon rank sum test (on two samples with different
> sizes)
> we get a test statistic. My question is, as the value of test statistic
> increases the difference between the distributions of the two samples also
> increa
I agree. Avoid the lines like:
iv = c( iv, min(i, j) )
I had code that was sped up by 70 times after fixing the size of my
output object before entering a loop.
Cheers
David
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Patrick Burns
Sent: 17 Octo
Dear R Users,
I am trying to write a wrapper around summarize and xYplot from Hmisc
and am having trouble understanding how to pass arguments from the
function I am writing to the nested functions.
There must be a way, but I have not been able to figure it out.
An example is below.
Any advi
... which is tip 2 in Section 7.7, "Tips," of V&R's S PROGRAMMING. Although
this is now somewhat dated, it is still worthwhile if you do any serious S
language programming (IMO, of course).
Bert Gunter
Genentech Nonclinical Statistics
-Original Message-
From: [EMAIL PROTECTED] [mailto:
Quoting Scionforbai <[EMAIL PROTECTED]>:
>> It would be dumb to ignore the fact that Excel is a very widespread
>> program, and therefore in the real world we are very likely to
>> encounter data formatted by Excel.
>
> Of course I know the widespreading of such programs. But the point is:
> how c
Hello useRs!
I have % cover data for different plant species in 300 plots, and I use
the ARCSINE transformation (to deal with % cover data).
When I use a GLM I do not have any problem.
But when I am trying to use a GAM model using mgcv package, to account for
non-linearity I get an âerror messa
On 10/17/07, Dirk Eddelbuettel <[EMAIL PROTECTED]> wrote:
> Hmm, I haven't had to do that in a while. What happens if you do
>
> > update.packages(method="wget")
>
> ie use an explicit setting of method?
This exact way of manually specifying the method within the command
(as opposed to set
Dear R Users,
I am trying to write a wrapper around summarize and xYplot from Hmisc
and am having trouble understanding how to pass arguments from the
function I am writing to the nested functions.
There must be a way, but I have not been able to figure it out.
An example is below.
Any advi
"Marc Schwartz" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> On Tue, 2007-10-16 at 14:38 +0100, Arnold Akem wrote:
>> Hey Seniors,
>>
>> Really new to R, please has anyone imported a dataset from MS office
>> excel 2007 into R yet? It seem to be giving me hard times which I did
On 10/17/07, Gang Chen <[EMAIL PROTECTED]> wrote:
> Why does R CMD INSTALL work for some packages (e.g., lme4) but not
> others (e.g., nlme)?
If you don't provide any code or error message, I doubt anyone on this
list will be willing to be of help.
Regards,
Liviu
On Wed, 2007-10-17 at 11:53 -0500, Earl F. Glynn wrote:
> "Marc Schwartz" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
> > On Tue, 2007-10-16 at 14:38 +0100, Arnold Akem wrote:
> >> Hey Seniors,
> >>
> >> Really new to R, please has anyone imported a dataset from MS office
> >>
Thanks for pointing out that my original was unclear. Here is the
error message:
> R CMD INSTALL nlme
WARNING: invalid package 'nlme'
* Installing to library '/Library/Frameworks/R.framework/Resources/
library'
ERROR: no packages specified
And the following works just fine:
> R CMD INSTALL
On 10/17/2007 1:12 PM, Daniel E. Bunker wrote:
> Dear R Users,
>
> I am trying to write a wrapper around summarize and xYplot from Hmisc
> and am having trouble understanding how to pass arguments from the
> function I am writing to the nested functions.
>
> There must be a way, but I have n
Dear All,
Is there any package to do multi-objective optimization? For instance,
consider the following problem:
maximize f(x,y) in order to x
and
maximize g(x,y) in order to y,
simultaneously, with x and y being the same both for f and g. Can R do
it numerically?
Thanks in advance,
Paul
__
On 10/17/2007 1:54 PM, Paul Smith wrote:
> Dear All,
>
> Is there any package to do multi-objective optimization? For instance,
> consider the following problem:
>
> maximize f(x,y) in order to x
>
> and
>
> maximize g(x,y) in order to y,
>
> simultaneously, with x and y being the same both fo
Hi Paul,
I know very little about multi-objective optimization. Further, I don't
understand what "in order to" means. In multi-objective optim problems,
don't you almost always end up reducing it to standard optimization by
combining the multiple objectives into a single objective function? Then
Duncan Murdoch wrote:
>
>> Is there any package to do multi-objective optimization? For instance,
>> consider the following problem:
>>
>> maximize f(x,y) in order to x
>>
>> and
>>
>> maximize g(x,y) in order to y,
>>
>> simultaneously, with x and y being the same both for f and g. Can R do
>
For me, it works. That is to say, not the simple way, which gave the error:
odbcConnectExcel("C:\\Users\\Kees\\Desktop\\Map1.xlsx")
But it does when you ask the correct driver
odbcDriverConnect("DRIVER=Microsoft Excel Driver (*.xls, *.xlsx, *.xlsm,
*.xlsb);DBQ=C:\\Users\\Kees\\Desktop\\Map1.xlsx
Duncan,
Thanks for your reply. Here is a simplified version. What I really
want to be able to do is summarize same data (using 'summarize') and
pass those results to 'xYplot' for plotting, all in one wrapper.
For this example, I am simply trying to call 'summarize' from within
another fun
It does! thank you very much.
Sigalit.
On 10/17/07, Peter McMahan <[EMAIL PROTECTED]> wrote:
>
> There are two things that will help you out.
>
> First, instead of getting the individual z1 and x1 one at a time and
> then multiplying them you can call rbinom(200,1,p) to get a vector of
> 200 inde
I upgraded to R version 2.6.0 yesterday; now I find that I can't load
spatstat.
I re-installed spatstat (that part seemed to work without complaint)
but when
I execute
> library(spatstat)
I get the error message
Error in dyn.load(file, ...) :
unable to load shared library '/User
Hello,
Does anyone know a way to connect from R on Linux box to TeraData
server? I can use ODBC connection on Windows box, but with amount of
data I need (and prefer) to use large Linux box.
Thanks,
Vadim
__
R-help@r-project.org mailing list
https:
On Wed, 2007-10-17 at 20:53 +0200, kees wrote:
> For me, it works. That is to say, not the simple way, which gave the error:
> odbcConnectExcel("C:\\Users\\Kees\\Desktop\\Map1.xlsx")
>
> But it does when you ask the correct driver
> odbcDriverConnect("DRIVER=Microsoft Excel Driver (*.xls, *.xlsx,
"Marc Schwartz" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> This might be a question along the lines of "is it plugged in?", but do
> you have the Office 2007 version of the ODBC drivers installed?
>
> If not, then your results would not be a surprise.
>
> If you do, then we shou
Alberto Monteiro wrote:
> Duncan Murdoch wrote:
>
>>> Is there any package to do multi-objective optimization? For instance,
>>> consider the following problem:
>>>
>>> maximize f(x,y) in order to x
>>>
>>> and
>>>
>>> maximize g(x,y) in order to y,
>>>
>>> simultaneously, with x and y being the
"Earl F. Glynn" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> I'll try the odbcDriverConnect and let you know.
Thanks. odbcDriverConnect worked fine for me, too, with new Excel 2007
formats:
library(RODBC)
channel <- odbcDriverConnect("DRIVER=Microsoft Excel Driver (*.xls, *.x
Hello,
I am trying to do arithmetic on numbers extracted from a PostgreSQL
database, wherein the numbers are stored as type "money". The
transcript below illustrates the problem.
> Membersind06 <- sqlQuery(channel,"select * from income where rowname like
> '%Membersind%'")
> names(Memb
Dear R user
I have 2 problems with lmer.
The statistical consultance service of my university has recomended to me to
expose those problems here.
Sorry for this quite long message.
Your help will be greatly appreciated...
Gilles San Martin
1) anova()
I fit a first model :
model1 <- lmer(eclw
On Wed, 2007-10-17 at 17:20 -0230, Roger Mason wrote:
> Hello,
>
> I am trying to do arithmetic on numbers extracted from a PostgreSQL
> database, wherein the numbers are stored as type "money". The
> transcript below illustrates the problem.
>
> > Membersind06 <- sqlQuery(channel,"select * from
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