I want to plot an array of 200x3600 in only two colors, blue color for the background and red color for the feature. pcolor; shading interp uses all the colors. also the radio frequency noise needs to be removed. I tried by subtracting the standard deviation and also outliers but no success.

"S N RAY" <suryanarayana_gs@yahoo.com> wrote in message 
news:jtlmqh$m81$1@newscl01ah.mathworks.com...
> I want to plot an array of 200x3600 in only two colors, blue color for the 
> background and red color for the feature. pcolor; shading interp uses all 
> the colors. also the radio frequency noise needs to be removed. I tried by 
> subtracting the standard deviation and also outliers but no success.

Either use SCATTER or divide your points into the two categories and call 
PLOT twice with a call to HOLD between the two calls.

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Steve Lord
slord@mathworks.com
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