[gradsusr] regrid data
Arlindo da Silva
dasilva at alum.mit.edu
Fri Apr 15 19:07:30 EDT 2011
On Thu, Apr 14, 2011 at 2:26 AM, Subash Yeggina <subash.yeggina at gmail.com>wrote:
> Hi! Arlindo,
>
> I am getting the same error as reported above "Syntax Error: Invalid
> Operand 're' not a variable or function name".
>
> I am using GrDAS *2.0.a9.oga.1 version on Windows XP. *I have attached
> the output of q udx in my previous reply as you had posted for the ouput of
> q config and q udx in this e-mail chain.
>
>
You appear to have an incomplete installation. I'd suggest you start by
uninstalling this version, downloading the win32 superpack (.exe) from
grads-2.0.a9.oga.1-win32_superpack.exe<http://sourceforge.net/projects/opengrads/files/grads2-windows/2.0.a9.oga.1/grads-2.0.a9.oga.1-win32_superpack.exe/download>
and reinstalling.
Arlindo
> What changes I need to make as the changes you have suggested are for LINUX
> OS.
>
>
> Thanks,
> Subash
>
>
> On Thu, Apr 14, 2011 at 6:40 AM, Arlindo da Silva <dasilva at alum.mit.edu>wrote:
>
>> On Wed, Apr 13, 2011 at 10:26 AM, Subash Yeggina <
>> subash.yeggina at gmail.com> wrote:
>>
>>> Hi! Arlindo,
>>>
>>> I am using GrADS on Windows XP. The version of GrDAS is *2.0.a9.oga.1*
>>>
>>> The output of the q udx is attached..
>>>
>>>
>> What exactly is your problem? Is re() not being found? Click on the
>> opengrads icon on your desktop and try this:
>>
>> ga-> open model
>> ga-> d re(ps,10)
>>
>> Arlindo
>>
>>
>>
>>>
>>> Regards,
>>> Subash
>>>
>>>
>>> On Wed, Apr 13, 2011 at 7:23 PM, Jackie Yip <zheng.yip at mcgill.ca> wrote:
>>>
>>>> Hi Arlindo,
>>>>
>>>> I'm running GrADs on Mac OS X. As I wasn't the person who installed this
>>>> version of GrADs, I'm not sure which method of installation was used. But I
>>>> hope the following info helps...
>>>>
>>>> My q config output:
>>>>
>>>> Config: v2.0.a9.oga.1 little-endian readline printim netcdf hdf4-sds
>>>> hdf5 opendap-grids,stn geotiff shapefile
>>>> Grid Analysis and Display System (GrADS) Version 2.0.a9.oga.1
>>>> Copyright (c) 1988-2010 by Brian Doty and the
>>>> Institute for Global Environment and Society (IGES)
>>>> This program is distributed WITHOUT ANY WARRANTY
>>>> See file COPYRIGHT for more information.
>>>>
>>>> Built Fri Apr 1 11:31:19 EDT 2011 for i386-apple-darwin10.5.0
>>>>
>>>> This version of GrADS has been configured with the following options:
>>>> o Built on a LITTLE ENDIAN machine
>>>> o Athena Widget GUI DISABLED
>>>> o Command line editing ENABLED
>>>> http://tiswww.case.edu/php/chet/readline/rltop.html
>>>> o printim command for image output ENABLED
>>>> http://www.zlib.net
>>>> http://www.libpng.org/pub/png/libpng.html
>>>> http://www.libgd.org/Main_Page
>>>> o GRIB2 interface DISABLED
>>>> o NetCDF interface ENABLED
>>>> http://www.unidata.ucar.edu/software/netcdf
>>>> netcdf 4.1.1 of Apr 1 2011 11:38:40 $
>>>> o OPeNDAP gridded data interface ENABLED
>>>> o OPeNDAP station data interface ENABLED
>>>> http://iges.org/grads/gadoc/supplibs.html
>>>> libgadap 2.0
>>>> o HDF4 and HDF5 interfaces ENABLED
>>>> http://hdfgroup.org
>>>> HDF 4.2r5
>>>> HDF5 1.8.6
>>>> o GeoTIFF and KML/TIFF output ENABLED
>>>> http://www.libtiff.org
>>>> http://geotiff.osgeo.org
>>>> o KML contour output ENABLED
>>>> o Shapefile interface ENABLED
>>>> http://shapelib.maptools.org
>>>>
>>>> q udx or udxt was not recognized as a valid query.
>>>>
>>>> Many thanks
>>>>
>>>> Zheng
>>>>
>>>>
>>>>
>>>> On 12 April 2011 19:54, Arlindo da Silva <dasilva at alum.mit.edu> wrote:
>>>>
>>>>> On Tue, Apr 12, 2011 at 3:22 PM, Jackie Yip <zheng.yip at mcgill.ca>wrote:
>>>>>
>>>>>> Hi Subash,
>>>>>>
>>>>>> I also got the error
>>>>>> "Syntax Error: Invalid Operand 're' not a variable or function name"
>>>>>> even though I used GrADs 2.0.a9.oga.1.
>>>>>>
>>>>>> Is the re function an extra thing one must install like a user define
>>>>>> extension? Or is the re function built-in for GrADs 2.0.a9.oga.1.?
>>>>>>
>>>>>>
>>>>> The extension re() is supposed to be include in all opengrads builds.
>>>>> Which operating system are you using? Please send output of
>>>>>
>>>>> ga-> q config
>>>>> ga-> q udx
>>>>>
>>>>> Did you do the regular opengrads bundle installation ("untar and go")
>>>>> or did you perform the "classic installation"?
>>>>>
>>>>> A
>>>>>
>>>>>
>>>>>
>>>>>> Thanks
>>>>>>
>>>>>> Zheng
>>>>>>
>>>>>> On 12 April 2011 14:32, Subash Yeggina <subash.yeggina at gmail.com>wrote:
>>>>>>
>>>>>>> Hi! Ismaila,
>>>>>>>
>>>>>>> You are correct... The regridding seems to be working if it is done
>>>>>>> just after the openning of the file.
>>>>>>>
>>>>>>> I tried doing the regridding after a few operations, and it failed.
>>>>>>> Not sure of the logic behind it..
>>>>>>>
>>>>>>> have you been able to resolve this issue at ur end.
>>>>>>>
>>>>>>> My version of GrADS is *2.0.a9.oga.1.*
>>>>>>>
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Subash
>>>>>>>
>>>>>>>
>>>>>>> 'open rfpt5.ctl'
>>>>>>> 'define newgrid = re(pr,0.25)
>>>>>>>
>>>>>>> On Fri, Apr 8, 2011 at 12:23 AM, Ismaila Diallo <
>>>>>>> ismailadiallo64 at yahoo.fr> wrote:
>>>>>>>
>>>>>>>> Hi subash,
>>>>>>>> i've used the re commend and i get this error :
>>>>>>>>
>>>>>>>> d re(pr,0.5)
>>>>>>>> Syntax Error: Invalid Operand
>>>>>>>> 're' not a variable or function name
>>>>>>>> Error ocurred at column 1
>>>>>>>> DISPLAY error: Invalid expression
>>>>>>>> Expression = re(pr,0.5)
>>>>>>>>
>>>>>>>> I am using grads1.9
>>>>>>>> Thank in advance
>>>>>>>> ------------------------------
>>>>>>>> *From:* Subash Yeggina <subash.yeggina at gmail.com>
>>>>>>>> *To:* Ismaila Diallo <ismailadiallo64 at yahoo.fr>; GrADS Users Forum
>>>>>>>> <gradsusr at gradsusr.org>
>>>>>>>> *Sent:* Thursday, April 7, 2011 8:10 PM
>>>>>>>> *Subject:* Re: [gradsusr] regrid data
>>>>>>>>
>>>>>>>> Dear Ismaila,
>>>>>>>>
>>>>>>>>
>>>>>>>> I think you can do it by using the *re *command.
>>>>>>>>
>>>>>>>> Ex:
>>>>>>>>
>>>>>>>> define newg=re(<variable>,<resolution>).
>>>>>>>>
>>>>>>>> For more details you can check
>>>>>>>> http://opengrads.org/doc/udxt/re/re.html#required_parameters
>>>>>>>>
>>>>>>>> <http://opengrads.org/doc/udxt/re/re.html#required_parameters>
>>>>>>>> Subash
>>>>>>>>
>>>>>>>> On Thu, Apr 7, 2011 at 10:57 PM, Ismaila Diallo <
>>>>>>>> ismailadiallo64 at yahoo.fr> wrote:
>>>>>>>>
>>>>>>>> dear grads User,
>>>>>>>> i've to netcdf files with different resolution. I use grads1.9 and i
>>>>>>>> went to regrids these data at a same resolution with my grads thus how
>>>>>>>> should i do??
>>>>>>>>
>>>>>>>> Sincerely
>>>>>>>> ismaila
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> gradsusr mailing list
>>>>>>>> gradsusr at gradsusr.org
>>>>>>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
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>>>>>>>
>>>>>>>
>>>>>>
>>>>>> _______________________________________________
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>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Arlindo da Silva
>>>>> dasilva at alum.mit.edu
>>>>>
>>>>
>>>>
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>>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>>
>>>>
>>>
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>>>
>>
>>
>> --
>> Arlindo da Silva
>> dasilva at alum.mit.edu
>>
>> _______________________________________________
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>> http://gradsusr.org/mailman/listinfo/gradsusr
>>
>>
>
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>
--
Arlindo da Silva
dasilva at alum.mit.edu
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