Dear NCL users
If I have an array;
nd=100
a=new((/nd/),"float",-999.)
that is made up of negative and positive values, how can I isolate
the only negative values and make them zero ? Here is my current
procedure for doing this;
do id=0,nd-1
if(a(id).lt.0.) then
a(id) = 0.
end if
end do
However when I try running this I get the following error message;
fatal:The result of the conditional expression yields a missing value.
NCL can not determine branch, see ismissing function
fatal:Execute: Error occurred at or near line 231
I thought since I set a _FillValue of -999. in the new statement that
missing values are ignored. I am not sure why NCL keeps encountering
a missing value. Any suggestions would be greatly appreciated.
Thank you,
Matt
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