headers
Nam-Ky Nguyen | 1 Sep 2005 01:14
Picon
Picon
Favicon

[R] R binaries, platform independent and Design of Experiments

Dear Rexpert,

I would like to thank those who spend time  answering my email on the
burning of a CD with all R binary files for Windows and Linux. I have
tried a couple of suggestions but have not been successful. I will pass
these suggestions to our system administrator and I am sure that he can
sort them out.

I hope that the future version of R will be written in Java so that it is
platform independent. This means there will be a single binary file for
each new version of R. At the moment there are files for Windows, Mac OS,
Fedora 1, 2, 3, 4, SUSE 9.1, 9.2, 9.3, etc.

I also hope that the future of version of R include more DOE (Design of
Experiments) modules. R will be more useful if it is not only a language
and environment for statistical computing and graphics, but also for
design of experiments. I am toying with the idea of adding to R some
modules of my Gendex DOE toolkit (http://designcomputing.net/gendex/). I
learn from an Rexpert that the first step for this exercise is to convert
my java code to C++.  As I do not know C++ (and life is short) please let
me know whether there is an alternative way without this conversion and
whether you can actively help me in this exercise.

Regards,
--

-- 
Nam-Ky Nguyen, Senior Lecturer
School of Mathematics, Statistics and Computer Science
University of New England, Armidale NSW 2351 Australia
nkn <at> turing.une.edu.au              Tel: +612 6773 2763
http://turing.une.edu.au/~nkn      Fax: +612 6773 3312
(Continue reading)

Permalink | Reply | 5 comments |
headers
Maciej Kalisiak | 1 Sep 2005 01:20
Picon

Re: [R] label *on the side* in conditional lattice plots?

On 8/31/05, Wiener, Matthew <matthew_wiener <at> merck.com> wrote:
> I think you might be able to use the "horizontal" argument to lattice to
> rotate all your plots and squish them in the other dimension.  (Though I
> don't know whether you consider that a good outcome ...)

I take it you mean to switch the layout so that the conditioned
bwplots are side by side, narrow but tall, with horizontal=TRUE, and
then incorporate into the paper by first rotating 90 degrees.  But is
there a way to rotate the axis labels then?  Having the z-label
written sideways is probably OK, but having the x- and y-axis labels
also sideways is just too much.

--

-- 
Maciej Kalisiak
<mkalisiak <at> gmail.com>
http://www.dgp.toronto.edu/~mac

______________________________________________
R-help <at> stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Permalink | Reply | 1 comment |
headers
Caio Lucidius Naberezny Azevedo | 1 Sep 2005 01:25
Picon
Favicon

[R] Block-diagonal matrix

Dear R-users,

Does anybody know how to construct a block-diagonal matrix (with the blocks being different matrixs,
concerning the dimension and the values), without use loops ? 

 
Thanks all,

Caio

		
---------------------------------

	[[alternative HTML version deleted]]

______________________________________________
R-help <at> stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Permalink | Reply | 2 comments |
headers
Maciej Kalisiak | 1 Sep 2005 01:42
Picon

Re: [R] label *on the side* in conditional lattice plots?

On 8/31/05, Maciej Kalisiak <mkalisiak <at> gmail.com> wrote:
> I take it you mean to switch the layout so that the conditioned
> bwplots are side by side, narrow but tall, with horizontal=TRUE, and

Oops, I obviously meant horizontal=FALSE...

--

-- 
Maciej Kalisiak
<mkalisiak <at> gmail.com>
http://www.dgp.toronto.edu/~mac

______________________________________________
R-help <at> stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Permalink | Reply | 0 comments |
headers
Duncan Murdoch | 1 Sep 2005 03:27
Picon
Favicon

Re: [R] R environment

Jean Eid wrote:
> This is probably a weird question but I need to know if there is a way...
> 
> I run an R batch job without saving the variables at each step to the
> disk.   Is there a way to invoke another session of R and link it to the
> same environment for read only.
> 
> The problem is that I am running optim with every step getting the
> parameters into the global env using <<- However, I forgot to issue a
> save(list=ls(),...) right after so I can load and see how the parameters
> are changing. It's been couple of days and it is still running so I am
> hoping that I can invoke another session of R and link it to the
> environment of the batch session. Does this sound totally ridiculous ?
> 
> it is a debian machine with R 2.1.1

If you happened to have compiled R with debug information, you might be 
able to use gdb or another debugger to examine variables in the running 
process, but you probably didn't, and it's probably easier to kill the 
job, fix it, and start it again, than it would be to learn how to see 
the active variables using gdb.

Duncan Murdoch

______________________________________________
R-help <at> stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
(Continue reading)

Permalink | Reply | 2 comments |
headers
Mahmoud Torabi | 1 Sep 2005 03:51
Picon
Picon

[R] Question

Dear Sir/Madam

I would be pleased if anybody can help me. I'm using linear mixed model
(lme) function.I'm doing some simulation in my research and need to be
assigned variance components values during of my program. Specifically,
when I use lme function, I can get some information by use summary() and I
can assign some valuse like variance of fixed parameters and variance of
random error
term by using for example  varFix and sigma.But I don't know how I can
assign for variance of random effect.
I know in SPLUS we have command var.ran, how about R ?

Thanks alot.
M.Torabi

______________________________________________
R-help <at> stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Permalink | Reply | 1 comment |
headers
Jia-Shing So | 1 Sep 2005 04:03
Favicon

[R] Linux Standalone Server Suggestions for R

Hi All,

My group is  looking for any suggestions on what to purchase to  
achieve the most powerful number crunching system that $50k can buy.   
The main application that will be used is R so input on what hardware  
benefits R most will be appreciated.  The requirements are that it be  
a single standalone server (i.e. not a cluster solution), and it that  
must be able to run unix/linux.  If anyone has any experience/ 
suggestions regarding the following questions that would also be  
greatly appreciated.

AMD vs Intel chips, especially 64-bit versions of the two?
Using Itanium/Opterons and if so how much of a performance boost did  
you achieve vs other 64-bit chip sets?
Also, does anyone know if there is an upper thresh hold on much  
memory R can use?

Thanks in advance for any help and suggestions,

Jia-Shing So
Programmer Analyst
Biostatistics and Bioinformatics Lab
University of California, San Diego

______________________________________________
R-help <at> stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
(Continue reading)

Permalink | Reply | 0 comments |
headers
Lisa Solomon | 1 Sep 2005 04:16
Favicon

[R] Data Mining Conference Program Announced

DATA MINING 2006 CONFERENCE sponsored by Salford Systems
San Diego, California: March 29 - March 31, 2006

The Conference will offer Real-World Case Study Presentations including 
Cutting Edge Topics:  Crime Prevention * Anti-Terrorism * Gambling * 
Sports * Video Games * Food & Water Science * Diet Research * 
Standardized Testing

There will be special courses available for attendees who are new to Data Mining covering 

        CART(R) Decision Trees
        MARS(R) Modern regression analysis
        TreeNet(tm) Jerome Friedman's Multiple Additive Trees
        Random Forests(tm) Leo Breiman's Tree Ensembles

See how Data Mining is Used for Business, Biomedial, and Environmental applications. Find out why
previous attendees rate our conferences the most informative in the industry.

If you would like more information, please click here:
http://www.salforddatamining.com/program-sd.htm

To be placed on the conference mailing list, please click here:
http://www.salforddatamining.com/2006InfoRequest.php

Best regards,
Lisa Solomon
Ph: (619)543-8880

______________________________________________
R-help <at> stat.math.ethz.ch mailing list
(Continue reading)

Permalink | Reply | 0 comments |
headers
Whit Armstrong | 1 Sep 2005 04:27

Re: [R] Linux Standalone Server Suggestions for R

you can test out a live PPC 64 bit system here:
http://www.openpowerproject.org/us/signup.php

I have successfully built R in my home dir and compiled a few packages for it.

Here are the machines available:

			Universität Augsburg  	Peking University  	
Server 		OpenPower 720 		OpenPower 720 	
Equipment 		4-Way POWER5 		4-Way POWER5 	
Memory 		8GB		 		16GB 	
Installation 	Debian	 		SUSE Enterprise 9 	 

I think the 16GB solution is approaching or beyond your budget.

-----Original Message-----
From: r-help-bounces <at> stat.math.ethz.ch [mailto:r-help-bounces <at> stat.math.ethz.ch] On Behalf Of
Jia-Shing So
Sent: Wednesday, August 31, 2005 10:03 PM
To: r-help <at> stat.math.ethz.ch
Cc: Phuoc Hong
Subject: [R] Linux Standalone Server Suggestions for R

Hi All,

My group is  looking for any suggestions on what to purchase to  
achieve the most powerful number crunching system that $50k can buy.   
The main application that will be used is R so input on what hardware benefits R most will be appreciated.  The
requirements are that it be a single standalone server (i.e. not a cluster solution), and it that must be
able to run unix/linux.  If anyone has any experience/ suggestions regarding the following questions
(Continue reading)

Permalink | Reply | 0 comments |
headers
Spencer Graves | 1 Sep 2005 04:32

Re: [R] basic anova and t-test question

	  Does the following answer your question:

 > set.seed(1)
 > z0 <- rnorm(100)
 > p.z <- 2*pnorm(-abs(z0))
 > sum(p.z<0.05)
[1] 5
 > pchisq(sum(z0^2), 100, lower=FALSE)
[1] 0.917285

	  Some of the 100 (in this case) normal random deviates seem 
statistically significant, even though the ensemble is not.

	  spencer graves

Arne.Muller <at> sanofi-aventis.com wrote:

> Hello,
> 
> I'm posting this to receive some comments/hints about a rather statistical than R-technical question
... .
> 
> In an anova of a lme factor SSPos11 shows up non-significant, 
but in the t-test of the summay 2 of the 4 levels (one for
constrast) are significant. See below for some truncated output.
> 
> I realize that the two test are different (F-test/t-test), 
but I'm looking for for a "meaning". Maye you have a schenario
that explains how these differences can be created and how you'd
go ahead and analyse it further.
(Continue reading)

Permalink | Reply | 501 comments |

Gmane