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Re: Overlaying filled contour plots

Couldn't you process the two data sets first and then visualize the
single result, instead of thinking how to combine two different visuals?

Simon de Vet wrote:
> I have two sets of data for a series of points.  One set indicates the
> values of a certain parameter, the others are the values of another
> parameter.
> Is there a way to overlay two filled contour plots? I'd like, for
> example, to have one of the values plotted in red, the other in blue,
> with purple (or another colour) where they overlap. These contour maps
> have two levels each (on and off), so I don't need to worry about shades
> of red or shades of blue. I just need conours for four states: both on
> (purple), both off (white), one on other off and vice versa (red and
> blue).