Assigning specific color to contour level

Hi,

I am using the "GreenYellow" color table for plotting a field on a map with
contours ranging from negative to positive values.
I wish to have the greens represent negative values, and the yellows
represent positive values. Is there a quick and easy way to assign a
specific color from the color table to correspond to a contour value (eg.
white color to represent 0)?
I need to plot several maps, so if there is a function that can help me do
this quickly, it would be great!

Nisha

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Received on Fri Sep 23 10:50:45 2011