Hi, The maPalette() function (in the marray package) does not always return the number of colors requested. More specifically, if a middle color is given and the number of colors requested is odd, then maPalette returns either one more or one less than the requested number of colors: # >>> returns 12 colors <<< maPalette(low="white", high="red", mid="yellow", k=11) # returns 11 colors maPalette(low="white", high="red", k=11) # >>> returns 12 colors <<< maPalette(low="white", high="red", mid="yellow", k=13) # returns 13 colors maPalette(low="white", high="red", k=13) Is this a feature or a bug? I'm using R version 2.10.1. Cheers, /Ali