Awkward copy/paste question

I've a very frustrating problem:

I have some very large matrixes like this (69 x 2311):

nan nan 1 nan nan 1 0 nan 0 0 0 1 nan nan 0 nan

and others like this:

99 99 64 99 99 32 0 99 0 0 0 36 99 99 0 99

They are of the same data, in one values are 1 or 0 and in the other 0-100. In one, the values i'm not concerned with are nans, but the other they are 99 and I need to change them into nans, but I can't change them all like I did with the other, because the values I am_ concerned with also includes some 99s (since they run 0-100). It's way too big to manually replace. I was wondering if there's way I can overlay the Nans from one onto the other - the two matrixes correspond exactly. Is there a way I can copy and paste just the NaNs without overlaying (and therefore losing) all the data?

Thank you

Answer 1

[Andrew Newell]

If your two vectors are v1 and v2, use:

v2(isnan(v1)) = nan;

[Grant]

Thank you very much! Perfect, I feared I would have to spend days doing it manually.