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.
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