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...igmaStat Software. In my results, i retrieve a correct q' value with the simtest t value How can i say if P<0.05 like the SigmStat results? Can i use p raw value, p bonf value, p adj value or other to compare directly? Or can i use the Dunnett's tables? Thanks for your help! Laurent Houdusse Analyste Programmeur

Hi all! How to retrieve the levels number of a factor object? See this code: groups<-gl(4,10) I want to retrieve the number of levels (4) of my object "groups" I tried groups.levels but this don't work Thanks Laurent Houdusse Analyste Programmeur

Hi all! I 'm beginner and i develop a bio-application with VB and i need some statistic functions! could i calculate StdError, CoeffOfVariance, SumSquared with R langage? if yes, what are functions to use? I need also to use ANOVA and t-test... Thanks for your help! Laurent Houdusse Analyste Programmeur

Hi, I'm a newbie and i am unable to use lillie.test in nortest I have a message: "Couldn't find function "lillie.test" I am under windows2000 with R1.8.1 nortest is listed with .packages(TRUE) How to do to use lillie.test function? Laurent Houdusse Analyste Programmeur

...nd i try to verify calcul So i retrieve: DF SS MS F P Between Groups 3 20.950 6.983 3.492 Residual 16 32.000 2.000 Total 19 52.950 2.787 How can i calcul the p-Value? Is there a function to do this? Laurent Houdusse Analyste Programmeur

...software and a One Way ANOVA on several groups In the result page there is a probability value to determine if Normality test is failed or passed So, how can i retrieve this probability value on several groups? Is there another function in R to verify normality on several groups? Thanks Laurent Houdusse Analyste Programmeur

Hi, I want to retrieve a value in the Dunnett's tables. I know the comparisons type, the percent of level,the number of traitments and the degrees of freedom. Is there a function to retrieve this value with this? Laurent Houdusse Analyste Programmeur