[BioC] non-symmetric heatmap colors

[Arne.Muller at sanofi-aventis.com]

Hello,

well, it's about heatmap colors, again ... .

Does anybody know a package to create a non-symmetric color map with user-choosen mir point and satuaration? I've a fold-change matrix, with values from -3 fold (ratio 1/3) to +7 fold. I'd like to go from 0.5 (green) to 1 (black) to 3 (red).

I think maPallete just assigns the lowest FC to the first color and the highest FC to the last color, i.e. an evenly distributed color list, right?

	Any hints are welcome,

	Arne