... and you do get P values; you just don't understand what you're looking at, which is more or less what you said.
This is not a statistical help site. You should seek local statistical consulting advice or post on a statistical help site (caveat emptor!) like stats.stackexchange.com, not here. Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 "Data is not information. Information is not knowledge. And knowledge is certainly not wisdom." Clifford Stoll On Thu, Aug 21, 2014 at 3:13 AM, Lynn Govaert <lynn.gova...@gmail.com> wrote: > I pressed enter to soon. > > Again > > Hi all, > > I have troubles with doing an anova. So I have the following variables: a > variable group with two levels, a continuous variable trait and within each > group we have 12 organisms (clone) and for each clone we have 5 replicates. > So we want to see if for the variable trait the two groups differ, > including the information for the clones. > > So the dataset looks like: > > trait group clone > ... 1 a1 > ... 1 a2 > ... > ... 1 a12 > ... 1 a1 > ... > ... 2 b1 > ... 2 b2 > > etc > > trait are just some numbers. > So clone is nested in group. > > Then I don't understand how to make the anova, > I was thinking we want to see if there is an effect of group > > So we built the model aov(trait ~group) > but because we also want to include the effect of clone which is a random > effect we do > > aov(trait ~ group + Error(clone)) > but because Clone is nested in group > we do > aov(trait ~ group + Error(group/clone)) > > but if I do this I get the following output > > > Error: PopulationTNFMF > Df Sum Sq Mean Sq > PopulationTNFMF 1 0.00917 0.00917 > > Error: PopulationTNFMF:CloneTNFMF > Df Sum Sq Mean Sq F value Pr(>F) > Residuals 1 0.0001849 0.0001849 > > Error: Within > Df Sum Sq Mean Sq F value Pr(>F) > Residuals 117 0.02107 0.0001801 > > > and I don't get any p-values, so I guess I'm doing something wrong. > Can someone help? > > Thank you in advance > Lynn > > > 2014-08-21 12:08 GMT+02:00 Lynn Govaert <lynn.gova...@gmail.com>: > >> Hi all, >> >> I have troubles with doing an anova. So I have the following variables: a >> variable group with two levels, a continuous variable trait and within each >> group we have 12 organisms (clone) and for each clone we have 5 replicates. >> So we want to see if for the variable trait the two groups differ, >> including the information for the clones. >> >> So the dataset looks like: >> >> trait group >> > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
