export a time series from GRADS

[Arlindo da Silva]

On Fri, Mar 5, 2010 at 12:13 PM, Hai-Ru Chang <hrc at eas.gatech.edu> wrote:

> Hello,
>             I have a time series data file.  When I export  a variable from
> opengrads to python, I saw the following error.  The version of my opengrads
> is v2.0.a7.oga.3.  Dose anyone has a fix?  Thanks!
>
>
> >>> temp = ga.exp('temp')
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File "/home/hrc/install/lib64/python2.6/site-packages/grads/ganum.py",
> line 119, in exp
>     if nx==1: raise GrADSError, 'lon must be varying but got nx=1'
> grads.gacore.GrADSError: 'lon must be varying but got nx=1'
>
>
Try

   temp = ga.expr('temp')

that is, method "expr" instead of "exp".


-- 
Arlindo da Silva
dasilva at alum.mit.edu
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