I use sentinel image 1 and want to assign the value by bandmath as follows:

if VHmax> a then 1 elif VHmin> b then 2 else VHmin <c then NaN.

How can I express it with bandmath?

does this work?

`IF VHmax> a THEN 1 ELSE (IF VHmin> b THEN 2 ELSE (IF VHmin < c THEN NaN ELSE 0))`

I had to define the last `ELSE 0`

because each IF needs an ELSE.

Thank you so much for our solution!!

Maybe, but whatif I wish to find the VHmax as a function as well? Should it:

IF max(VH)> a THEN 1 ELSE (IF min(VH) > b THEN 2 ELSE (IF min(VH) < c THEN NaN ELSE 0))