[R] Error for TukeyHSD ?

Hi, one question about TukeyHSD in R: it seems to work only for models without Error terms but not when an Error is specified: Examples: aov1-aov(MMN_ind~(GenCond*Lang)+Error(VP),data=cutie_all) TukeyHSD(aov1,Lang,ordered=TRUE,conf.level = 0.95) -- the German error message tells me its not

[R] Help on direction of axis in R needed

Hi! I'd like to plot things with axes going from the highest to the lowest value, so that e.g. high values on the xaxis are plotted to the left and low values to the right. Could anyone tell me how this is done? I couldn't find anything in the documentation. Thanks a lot! Silli