Re: [R] categorical data analysis - fisher.exact for 2x2 and greater

Hi Simon and all, I'm pretty sure that you are correct about this. I think it is a misconception to say that the fisher exact test is only for a 2 by 2 table. It is presented that way in textbooks because, for a 2x2 table, it is easy to perform. For larger tables, it becomes complex quickly due

[R] problem with fisher.test

I posted this last night but I think I figured out the problem. I checked on the underlying equation for the Fisher Exact Test for tables greater than 2X2. It looks like I have an insane amount of factorials to be multiplied. Is that problem? Is it an overflow issue? Jeff

Re: [R] Documentation General Comments

Bert, I don't think the documentation in of itself is the core of the problem presented in the original post about this. The problem is one of organization. I commented about it possibly being time for an exhaustive R Guide (similar to those huge books put out for commercial software) that

Re: [R] Documentation General Comments

I agree completely. Maybe it's time for an exhaustive manual (with weekly downloadable updates, of course). It would also be nice if it were cross-referenced. For example, to get what I wanted last weekend from a simple 2x2 contingency analysis, I had to bounce between 4 different libraries.

Re: [R] Mantel-Haenszel for 2x2

. Jeff Miller; [EMAIL PROTECTED] Subject: Re: [R] Mantel-Haenszel for 2x2 See if this is what you are looking for: library(epicalc) data(Oswego) use(Oswego) cc(ill, chocolate) mhor(ill, chocolate, sex) You might also wish to read the details of: mantelhaen.test HTH], Rob Baer - Original

Re: [R] cronbach's alpha

.html HTH, Jeff Miller Jeffrey M. Miller, PhD AlphaPoint05, Inc. Statistics Consultant 2792 SE 27th Ave. Gainesville, FL 32641 H: 352.505.2798 C: 352.359.6611 Checked by AVG Free Edition. 9:50 PM

[R] simple averaging question?

Hi all, Suppose I have a column vector of 600 measurements taken in 1s intervals. What I want is a new vector with the averages for each min (so there would be 10 entries). Is there an efficient way to do this? I’ve been doing it with a ‘for’ loop but something tells me there is a

Re: [R] simple averaging question?

Moshe, Ted, Chuck, All THREE approaches worked fine for me. Thank you! Sincerely, Jeff Miller Internal Virus Database is out-of-date. Checked by AVG Free Edition. 3:09 PM ---BeginMessage--- Jeff Miller wrote: Hi all, Suppose I have a column vector of 600 measurements

[R] Mplus and R

Has anyone successfully linked Mplus and R and have code on how to do it? It would be great to use R to simulate datasets and then ship to Mplus for SEM analysis. I know one researcher who does this quite regularly but I can’t get ahold of him right now. Sincerely, Jeff Miller

Re: [R] linking Tinn-R to a new R version

get to the end of the line. Sincerely, Jeff Miller Jeffrey M. Miller, PhD AlphaPoint05, Inc. Statistics Consultant 2792 SE 27th Ave. Gainesville, FL 32641 H: 352.505.2798 C: 352.359.6611 Checked by AVG Free

Re: [R] Repeated Measures/Linear Mixed Effects function

---BeginMessage--- Hi Keith, it seems like a good starting position. I recommend that you spend some time studying Pinheiro and Bates's book to see where t ogo from here. Cheers Andrew On Mon, Oct 22, 2007 at 02:58:51PM -0800, Keith Cox wrote: I have three columns of