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Dear r-useRs, After a couple of years in a 'R exile' of sorts, I've recently changed jobs and my current employer (an American multinational in the food manufacturing industry) is much more open than my past employer (which wouldn't even want to hear about anything that didn't begin with SAS...). So, after my insistence corporate IT is now considering adopting R as part of our

Dear r-useRs, After a couple of years in a 'R exile' of sorts, I've recently changed jobs and my current employer (an American multinational in the food manufacturing industry) is much more open than my past employer (which wouldn't even want to hear about anything that didn't begin with SAS...). So, after my insistence corporate IT is now considering adopting R as part of our

Hi, I'd like to know if it's possible to specify different contrast matrices in lm() for a factor that is nested within another one. This is useful when we have a model where the nested factor has a different number of levels, depending on the main factor. Let me illustrate with an example to make it clearer. Consider the following data set: set.seed(1) y <-

Full_Name: Fernando Henrique Ferraz Pereira da Rosa Version: 1.8.0 OS: Linux 2.4.21 Submission from: (NULL) (200.206.211.169) After installing R 1.8.0, the R DBI interface stopped working. I tracked it down as a problem in the 'methods' package, that comes in the default installation. Somehow the function '.valueClassTest' which is defined on package 'methods',

Dear R-developeRs, Attached follows a patch against svn 34959 that adds the printing of p-values to the TukeyHSD.aov function in stats package. I also updated the corresponding documentation file and added a 'see also' reference to the simint function of the multcomp package. As it was already brought up in a previous thread [1] in R-help, one can obtain the adjusted

I have just finished translating R.pot to pt_BR and now I'll start the process of revision and will merge it with the latest SVN version (33261), as I started the translation on 02/06 (SVN 33048). There are some observations I'd like to make regarding the translation process: 1) Sometimes it is not clear in the message whether a given term is referring to an actual

Hi, I'd like to get away from SAS, but I don't really know R well enough at this point to know if it would be good for this project. I tried to describe the essence of the project below without getting bogged down in details. It starts when I receive a data flat file. There's lots of columns, but the relevant ones are: custid (customer ID number) saledt (date of sale)

Dear R-devel, There seems to be a bug in the Startup section, regarding the R_PROFILE environment variable in Windows. If not a bug in the Startup itself, perhaps a bug in the documentation. According to ?Startup: Then R searches for the site-wide startup profile unless the command line option '--no-site-file' was given. The name of this file is

Full_Name: Adriano Azevedo Filho Version: 2.9.0 OS: Windows Vista Submission from: (NULL) (201.68.79.62) The error message produced when the function name typed in the console is misspelled in the Portuguese translation. This is not a new issue but as it is around for sometime I've decided to report. As this is a frequent message when beginners start using R, it gives an unfortunate bad

Hi Now a more theoretical question. I have two correlation matrices - one of a set of variables under a particular condition, the other of the same set of variables under a different condition. Is there a statistical test I can use to see if these correlation matrices are "different"? Thanks Mick

I am attempting to set up a mixed effects model, with one factor fixed (put in as.factor, with three factor levels) and one factor random(put in as.factor, with four different batches) as well as the interactions. I have tried the lme function, but R continues to crash everytime I run it... My code is: model_lme(y~a,random=~b+a:b) Is this way off base? I just need to get F statistics to do

Hello, I have problems using lattice graphics together with Sweave under Windows XP and R 2.0.0; 2.0.1 Patched; 2.1.0 devel respectively. Base graphics are o.k., but for lattice graphics empty files (.eps and .pdf) are generated. The only workaround I found was to write and read the respective figures explicitely using postscript() and includegraphics{}. Have I missed something to solve this

I want to specify a two-factor model in lme, which should be easy? Here's what I have: factor 1 - treatment FIXED (two levels) factor 2 - genotype RANDOM (160 genotypes in total) I need a model that tells me whether the treatment, genotype and interaction terms are significant. I have been reading 'Mixed effects models in S' but in all examples the random factor is not in the main

Attached follows a patch to a minor change in the plot method of the TukeyHSD class (package stats). Basically it defines main= and xlab= as formal arguments of the plot function, with reasonable default values, passing them to title(), instead of using hard-coded only values for main= and xlab=. This way it's possible to change the title and xlab of the plots created using plot.TukeyHSD().

Frank uses the term "hierarchical keyword organization" which I agree is a good way to organize a system designed to help users. In fact, this is one reason why I like the R graphics gallery which allows one to quickly find a particular type of plot based on keyword, examine the plot to see if it's close to what's desired, and then get the detailed code to examine or modify for

Hello list, I suspect this is more a linux question than an R question, but I'll describe my situation in case anyone here knows of an elegant solution. I'm using Sweave and R to create thousands of customized reports. Within an R loop, I have R create a table.tex file using the CAT function which, for each iteration, creates a unique table.tex file in a subdirectory of the directory

Dear R Helpers, Does anyone know how to use tcltk to display jpeg images? The manual says that one must use Tk_PhotoCreateImageFormat to register the jpeg image handler. The "ActiveTcl User Guide" (http://support.serv.ch/lang/tcl/img/doc/img-jpeg.html) says:- "The package img::jpeg is a sub-package of Img. It can be loaded as a part of the complete Img support, via package require

This pre-announcement is being sent for information to both R-help and BioC. Please use R-devel at r-project.org for any follow-up discussion. ----------------------------------------------------------------------- We are about at the end of a several-week process of adding support for non-Latin character sets and non-Western-European languages to R. - For Linux users, R works in the UTF-8

This pre-announcement is being sent for information to both R-help and BioC. Please use R-devel at r-project.org for any follow-up discussion. ----------------------------------------------------------------------- We are about at the end of a several-week process of adding support for non-Latin character sets and non-Western-European languages to R. - For Linux users, R works in the UTF-8

I have a dataset which I want to model using a Poisson distribution, with a given parameter. I would like to know what is the proper way to do a ''goodness of fit'' test using R. I know the steps I''d take if I were to do it ''manually'': grouping the numbers into classes, calculating the expected frequencies using ''ppois'', then