Few minors bugs/suggestions proposed by Florian

[Kim-Anh Le Cao]

if input keepX = one value, repeat for the number of comp? put per default and warn the user?

sPLS da predict: [4/11/2014 5:30:23 pm] Florian Rohart: Error in apply(object$variates$X[Yprim[, i] == 1, ], 2, mean) : dim(X) must have a positive length [4/11/2014 5:30:56 pm] Florian Rohart: faudra surement rajouter un drop=FALSE

dans la fonction plotVar, il faudrait rajouter un argument plot=TRUE/FALSE pour quand on veut que les sorties et pas le plot (comme pour le boxplot)

keepX , set warning when set to 0