Hello,
I have a matrix with value varying from -1 to 1. I hope to use scaled color
based on its value to produce an image of this matrix.
Suppose I hope to label those data in [-1,-0.5] with blue, label those
[-0.5,0.8] with light blue (tone is proportional to its value) and label
those [0.8,1] with white.
How can I use image() and rgb() to achieve this? It would be great if I can
have a color scale legend, too.
TIA,
Chris
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