[ncl-talk] dividing color map to intervals

[M P]

Hello,
I define a colormap as

gsn_define_colormap(wks,"WhiteBlueGreenYellowRed")

I want to divide it into e.g. 20 equal intervals so I can plot data in
different ranges
with different colors.

Can you help how to e.g. create an array colors[i] that would span the
whole range? Or there is another way to do it?

Thanks,
Mark
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