Re: [R] SAS or R software

Marc Schwartz said the following on 2004-12-18 01:19: As you are likely aware, other statistically relevant issues are contained in various ICH guidance documents regarding GCP considerations and principles for clinical trials: http://www.ich.org/[EMAIL PROTECTED]@_TEMPLATE=272 ICH E9 states that

Re: [R] Union of list elements

Can't you turn the lists into data frames issue unique and force them back to lists. Here's the code: L - list(c(a1,a3,a4), c(a1,a4,a5), c(a1,a5,a6)) M - list(c(a1,a3,a4), c(a2,a4,a5), c(a1,a5,a6), c(a7, a1, a4)) LL - as.data.frame(I(L)) MM - as.data.frame(I(M)) X -

[R] variables - data-structure

dear R-friends, i`ve got a large dataset of vegetation-samples with about 500 variables(=species) in the following format: 1 spec1 1 spec23 1 spec54 1 spec63 2 spec1 2 spec2 2 spec253 2 spec300 2 spec423 3 spec20 3 spec88 3 spec121 3 spec200 3 spec450 . . this means: sample 1 (grassland) with

Re: [R] SAS or R software

Marc Schwartz wrote: On Fri, 2004-12-17 at 17:11 -0500, Alexander C Cambon wrote: I apologize for adding this so late to the SAS or R software thread. This is a question, not a reply, but it seems to me to fit in well with the subject of this thread. I would like to know anyone's experiences in

Re: [R] variables - data-structure

Helmut Kudrnovsky wrote: dear R-friends, i`ve got a large dataset of vegetation-samples with about 500 variables(=species) in the following format: 1 spec1 1 spec23 1 spec54 1 spec63 2 spec1 2 spec2 2 spec253 2 spec300 2 spec423 3 spec20 3 spec88 3 spec121 3 spec200 3 spec450 . . this means:

RE: [R] variables - data-structure

Dear Helmut, How about table(species, sample)? Regards, John John Fox Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -Original Message-

Re: [R] SAS or R software

Henric Nilsson wrote: Marc Schwartz said the following on 2004-12-18 01:19: As you are likely aware, other statistically relevant issues are contained in various ICH guidance documents regarding GCP considerations and principles for clinical trials: http://www.ich.org/[EMAIL

Re: [R] variables - data-structure

Helmut Kudrnovsky [EMAIL PROTECTED] writes: dear R-friends, i`ve got a large dataset of vegetation-samples with about 500 variables(=species) in the following format: 1 spec1 1 spec23 1 spec54 1 spec63 2 spec1 2 spec2 2 spec253 2 spec300 2 spec423 3 spec20 3 spec88 3 spec121

Re: [R] SAS or R software

Frank E Harrell Jr said the following on 2004-12-18 15:03: That is not clear. Perhaps. And I think this is the issue. From the clients' perspective, not a single FDA document states that you can use other software than SAS. They haven't really thought about the fact that there isn't any FDA

Re: [R] SAS or R software

There were two earlier threads on this topic: http://finzi.psych.upenn.edu/R/Rhelp02a/archive/17554.html http://finzi.psych.upenn.edu/R/Rhelp02a/archive/10706.html Jon -- Jonathan Baron, Professor of Psychology, University of Pennsylvania Home page: http://www.sas.upenn.edu/~baron R search

Re: [R] SAS XPORT data format [was Re: SAS or R software]

Frank E Harrell Jr wrote: ... much discussion deleted ... Regarding CDISC, the SAS transport format that is now accepted by FDA is deficient because there is no place for certain metadata (e.g., units of measurement, value labels are remote from the datasets, variable names are truncated to 8

[R] erro in SVM (packsge e1071)

Hello, I am using SVM under e1071 package for nu-regression with 18 parameters. The variables are ordered factors, factors, date or numeric datatypes. I use the linear kernel. It gives the following error that I cannot solve. I tryed debug, browser and all that stuff, but no way. The error is:

Re: [R] variables - data-structure

Helmut Kudrnovsky hellik at web.de writes: : : dear R-friends, : : i`ve got a large dataset of vegetation-samples with about 500 : variables(=species) in the following format: : : 1 spec1 : 1 spec23 : 1 spec54 : 1 spec63 : 2 spec1 : 2 spec2 : 2 spec253 : 2 spec300 : 2 spec423 : 3 spec20 : 3

[R] Sums of sq in car package Anova function

Hello R users, I am trying to run a three factor ANOVA on a data set with unequal sample sizes. I fit the data to a 'lm' object and used the Anova function from the 'car' package with the 'type=III' option to get type III sums of squares. I also set the contrast coding option to

Re: [R] SAS or R software

Henric Nilsson wrote: Frank E Harrell Jr said the following on 2004-12-18 15:03: That is not clear. Perhaps. And I think this is the issue. From the clients' perspective, not a single FDA document states that you can use other software than SAS. They haven't really thought about the fact that

RE: [R] SAS or R software

I've seen multiple comments about MS Excel's precision and accuracy. Can you please point me in the right direction in locating information about these? Thank you very much, Shawn Way, PE Engineering Manager Tanox, Inc. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL

RE: [R] SAS or R software

On Sat, 2004-12-18 at 20:54 -0600, Shawn Way wrote: I've seen multiple comments about MS Excel's precision and accuracy. Can you please point me in the right direction in locating information about these? Thank you very much, There was an exchange on this last year and I posted some links

[R] how to make the matrix as factors

Hi All, Thanks for you help, I have loaded the library MASS to call the mca. But when I want to do the mca, there is another problem, for example leaf - read.table(C:/Documents and Settings/wxh-c/×ÀÃæ/1.txt, + col.names=c(size,texture),header=TRUE) leaf size texture 1