Re: get dimension sizes

If the variable is a "coordinate variable" [ie, a variable
name is the same as its' dimension name, eg time(time) ] then

dimt = filevardimsizes(f,"time")
print(dimt)

Otherwise, you can write your own function. See the examples at:
http://www.ncl.ucar.edu/Document/Functions/Built-in/getvardims.shtml

undef("my_filevardimsizes")
function my_filevardimsizes(f[1]:file, dname[1]:string)
local fdimnames, dsizes, i
begin
   fdimnames = getvardims(f) ; all dimension names on file
   if (any(fdimnames.eq.dname)) then
       dsizes = getfiledimsizes(f)
       i = ind(fdimnames.eq.dname)
       return(dsizes(i))
   else
       print("my_filevardimsizes: warning: no dimension named "+dname)
       return(-999)
   end if
end

On 1/16/11 11:03 AM, Jeff wrote:
> Hi Sir/Madam,
>
> I'm looking for a function returning the dimension size for a given
> dimension specified via dimension name.
>
> Say, I know there is a dimension called "time" in file f, so a
> function(f, "time") will return the size of dimension "time".
>
> I browsed the functions on NCL website, and it seems that all relevant
> functions are returning the dimension sizes of all dimensions for
> either a file or a var.
>
> Is there any function doing what I'm looking for?
>
> Thanks.
> Yaosheng
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Received on Sun Jan 16 11:27:34 2011