How to exclude some value from raster matrix

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I have a raster matrix with float values. I would like to find the minimum, median, mean, and the maximum values of my data, but when I use minA=min(A) I am receiving -1.797693134862316e+308 what represent the pixels with no data. How to exclude this value from my evaluation?

Accepted Answer

Image Analyst
Image Analyst on 16 Jul 2015
Reassign bogus values to something else, like 0 or infinity or nan. Make sure it's some value that won't also mess up your max calculation:
A(A<0) = 0;
minA = min(A(:));
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