Message-ID: <4594D8CB.2090103@biostat.ku.dk>
Date: 2006-12-29T08:58:51Z
From: Peter Dalgaard
Subject: t-test
In-Reply-To: <861248.93830.qm@web59015.mail.re1.yahoo.com>
John Mason wrote:
> I have downloaded the latest version of R and continue to have the same problem I did with the previuos version which is that I am unable to run a two-sample t-test in R-commander. I can run a paired t-test and a one sample t-test but not a two-sample t-test or one factor ANOVA. The data have been both imported and entered directly into R-cmdr and I can run regressions and basic data summaries on these data but not the t-tests described above. Any ideas? Windows XP on a Dell built within last year.
>
> John
>
Have you converted your grouping variables to factors? Rcmdr is pretty
insistent on that point.