CDO

Hi,

I have two files in a regular 1x1 grid, and one of them contains missing values in some grids. I wanted to use this file to mask the other one (to have the same grids with missing values).
For that I was trying to use maskregion, which is not working, and probably it can be used here, am I wrong?

cdo maskregion, file1 file2 out

cdo maskregion (Abort): y value missing in file ..

I also though about using ifthen but I am not sure if it would work here. Any suggestion?

Thanks!

Noelia