[R] mathematical expression in varnames of lattice parallel plot

nt axes of the parallel plot. Thank you very much. Regards, Doris -- --- Dr.-Ing. Doris Brockmann Post-doctoral researcher INRA - Laboratoire de Biotechnologie de l'Environnement (LBE) Avenue des Etangs, Narbonn

[R] dealing with heteroscedasticity in lmer: problem with the method weights

ld I normalise the within group variance before implementing the model? And deal with the variance (as a new variable to explain) in another model? Is there another way to solve this problem? Thank you in advance for your help Doris Gomez [[alterna

[R] lattice, xyplot, using "panel.segments" by just addressing one panel

N", layout = c(6,5), aspect = 1, as.table = TRUE, strip=FALSE, panel=function(x,y){ panel.xyplot(x,y,pch=20,col="black", bg="transparent") panel.fill(col = "transparent") panel.segments (x1,y1,x2,y2 [panel.number(1,2)]) }) Thanks, Doris -- View

[R] problems with contrast matrix

t initial par (65) What is/are the problems and the solutions? - Is the contrast matrix of a rank inferior to what it should be? - Are there some other code lines I should have put to facilitate convergence? Thank you for your help. Doris Gomez [[alternative HTML version de