[R] ttest in R

[Thomas Petzoldt]

1Rnwb schrieb:
> Thanks for the help, but ANOVA will give me a single pvalue, then how i can
> make sure which group is showing the significant differences.

Hi,

ANOVA is fine and please have a look on ?TukeyHSD and don't forget to 
consult your statistics textbook about post-hoc testing. If you insist 
in using t.test, don't forget Bonferroni or Holm-correction (in R: 
?p.adjust) or use ?pairwise.t.test !!!

ThPe