[ncl-talk] how to get the dimension size in netcdf file

[David Brown]

getfilevardimsizes gets the sizes of the dimensions the apply to a
specific variable. I thought the question was how to get the size of a
dimension by name from the file without specifying a particular
variable.
 -dave


On Fri, Apr 24, 2015 at 12:53 PM, Alan Brammer <abrammer at albany.edu> wrote:
> Isn't that functionality in this function?
> https://www.ncl.ucar.edu/Document/Functions/Built-in/getfilevardimsizes.shtml
>
>
> Alan.
>
> On 24 April 2015 at 14:36, David Brown <dbrown at ucar.edu> wrote:
>>
>> Well we would need to create another function to do that. We will
>> consider it. Thanks for the suggestion.
>>  -dave
>>
>> On Fri, Apr 24, 2015 at 12:32 PM, LeiTing <leiting2002 at hotmail.com> wrote:
>> > Dave,
>> > Thank you so much. That is already the solution I need.
>> > However, can NCL be "smarter" that ,say, I can directly ask for the size
>> > of
>> > a named dimension?
>> > I know I can do it after using the function you pointed out, however,
>> > I'm
>> > just wondering if there are some tip that directly do it.
>> > Thanks a lot.
>> > Ting
>> >
>> >> Date: Fri, 24 Apr 2015 12:01:50 -0600
>> >> Subject: Re: [ncl-talk] how to get the dimension size in netcdf file
>> >> From: dbrown at ucar.edu
>> >> To: leiting2002 at hotmail.com
>> >> CC: ncl-talk at ucar.edu
>> >
>> >>
>> >> Hi Ting,
>> >> getfiledimsizes is the function to use.
>> >> See
>> >>
>> >> http://www.ncl.ucar.edu/Document/Functions/Built-in/getfiledimsizes.shtml
>> >>
>> >> The example shows how to get the dimensions names along with the sizes.
>> >> -dave
>> >>
>> >>
>> >> On Fri, Apr 24, 2015 at 10:12 AM, LeiTing <leiting2002 at hotmail.com>
>> >> wrote:
>> >> > Dear Ncl folks,
>> >> > I apologize first if this is a duplicated question though I haven't
>> >> > found
>> >> > it.
>> >> > I have a netcdf file (the "sparse grid" by NSSL), with ncdump output
>> >> > as
>> >> > ^^^^^^^^^^^^
>> >> > dimensions:
>> >> > Lat = 236 ;
>> >> > Lon = 355 ;
>> >> > pixel = 12596 ;
>> >> > variables:
>> >> > float RefQC(pixel) ;
>> >> > ..............................
>> >> > VV
>> >> >
>> >> > I want to get the dimension lat and lon, which can 't be obtained by
>> >> > ,say,
>> >> > dimsize (RefQC).
>> >> > They are also not global attributes.
>> >> > Hence, I 'm lost on how to access those definitions of "lat" and
>> >> > "lon"
>> >> > in
>> >> > the netcdf file.
>> >> > Your help is appreciated.
>> >> > Best wishes,
>> >> > Ting
>> >> >
>> >> >
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