Re: Trouble with string comparisons

[1] Why are you using 'stringtochar' if your input is a string ???

  function chkvName3D(vName:string)
  begin
      if ( (vName .eq. "MEANTAU") .or. \
         :
         :
  end

---
[2] Whatever you did
     foo =
     tf  = chkvName3D(foo)
     NCL is telling you the the variable (argument) 'foo'
     could not be converted to type string. What is 'foo' ?
---
[3] Another way to determine the rank is ...
     f = addfile(....)
     vName = "..."
     rank  = dimsizes( getfilevardimsizes(f,vName) )
http://www.ncl.ucar.edu/Document/Functions/Built-in/getfilevardimsizes.shtml 
---
If you are new to NCL, please read the Mini-Language manual at:
     http://www.ncl.ucar.edu/Document/Manuals/
On 4/24/13 6:27 AM, Marston Johnston wrote:
> Hi,
>
> I'm trying to compare some strings in a function:
>
> function chkvName3D(vName:string)
>
>
>
> begin
>
>     nme = stringtochar(vName)
>
>     if ( (nme(0:8) .eq. "MEANTAU") .or. \
>
>          (nme(0:6) .eq. "CLDLOW") .or. \
>
>          (nme(0:6) .eq. "CLDMED") .or. \
>
>          (nme(0:6) .eq. "CLDTOT") .or. \
>
>          (nme(0:3) .eq. "Z3") .or. \
>
>          (nme(0:5) .eq. "PREC") .or. \
>
>          (nme(0:3) .eq. "FSN") .or. \
>
>          (nme(0:3) .eq. "FLN") .or. \
>
>          (nme(0:2) .eq. "PS") .or. \
>
>          (nme(0:3) .eq. "SOL") )
>
>        print(nme+" is a 3D variable!")
>
>        return(True)
>
>     else
>
>        return(False)
>
>     end if
>
> end
>
> if the vName = "CLDICE" then I get the error:
>
> warning:Argument 0 of the current function or procedure was coerced to the
> appropriate type and thus will not change if the function or procedure
> modifies its value
> fatal:Subscript out of range, error in subscript #0
> fatal:An error occurred reading nme
>
> I'm struggling to understand why this keeps failing?
>
> What is a good way to compare all of a string or only part of the string?
>
> Thanks,
> /M
>
>
>
>
> _______________________________________________
> ncl-talk mailing list
> List instructions, subscriber options, unsubscribe:
> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>
_______________________________________________
ncl-talk mailing list
List instructions, subscriber options, unsubscribe:
http://mailman.ucar.edu/mailman/listinfo/ncl-talk