Re: rh_plane

There's not quite enough information here, as it would help if a line number was included.

This error is implying that you are doing a conditional operation on a missing value. For example, this short code snippet will produce the same error:

TEST = new(1,logical)

if(TEST) then
  print("TEST is True")
else
  print("TEST is False")
end if

In the above, "TEST" is missing, because the "new" statement is returning a missing value. You can't execute an "if" statement on a missing value, but you could do something like this:

TEST = new(1,logical)

if(ismissing(TEST)) then
  print("TEST is missing")
else if(TEST) then
  print("TEST is True")
else
  print("TEST is False")
end if
end if

In your case, the problem may be with this statement:

            if ( .not.ismissing(zz(imax,0)) .and. zz(imax,0) .ge. zmax ) then

Is it possible that zmax is missing?

--Mary

On May 8, 2014, at 6:53 PM, nlcheng <cnl88@163.com> wrote:

> hello
> I want to extract rh and t from the WRF out data on a N-S cross section that runs through "plane" and draw the three physical quantity in one picture like this drawing.
> appendix is my scripts that I have uploaded. but there are some errors as below,how can i change this script?
>
> fatal:The result of the conditional expression yields a missing value. NCL can not determine branch, see ismissing function
>
>
> thank you very much
>
>
>
>
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Received on Fri May 9 10:08:17 2014