Hi Glynn, hi all, (cc to grass5) thanks for the i.cca fix. Related to i.pca I have a question: main.c: opt3->answer = "1,255"; opt3->description= "Rescaling range output (For no rescaling use 0,0)"; Such a range sounds unusual to me, I would expect 0,255. Do you agree (then I'll change it), Markus