Friends,

I have two covariance matrices (m1 and m2) of same size (150x150). I used
contourplot function to make contour plots individually (c1 and c2). I am
interested in making one contourplot overlapping the two individual contours
so that the portion of the plot above and below the diagonal can represent
the c1 and c2. Someone suggest me how can i do the same.

Is there any way that i can combine m1 and m2 and write the combined matrix
to a file and plot it to achieve the mentioned above.

Thanks,
Bala

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