len() of unsized object - ks test

[Jamie Mitchell]

On Friday, April 25, 2014 3:07:54 PM UTC+1, Jamie Mitchell wrote:
> Hello all,
> 
> 
> 
> I am trying to perform a Kolmogorov-Smirnov test in Python but I'm having a few difficulties.
> 
> 
> 
> # My files are netCDF so I import them as follows:
> 
> 
> 
> control=netCDF4.Dataset('/data/cr1/jmitchel/Q0/swh/controlperiod/south_west/swhcontrol_swest_concatannavg_1D.nc','r')
> 
> 
> 
> # The string is simply a 1D array
> 
> 
> 
> # Then performing the ks test:
> 
> 
> 
> kstest(control,'norm')
> 
> 
> 
> # I then get the following error:
> 
> 
> 
> File "<stdin>", line 1, in <module>
> 
>   File "/usr/local/sci/lib/python2.7/site-packages/scipy/stats/stats.py", line 3413, in kstest
> 
>     N = len(vals)
> 
> TypeError: len() of unsized object
> 
> 
> 
> Any ideas on why this isn't working would be great.
> 
> 
> 
> Thanks,
> 
> 
> 
> Jamie

Thanks for your help.

Steven your right I wasn't reading in the file on netCDF4.Dataset, I was just opening it. I have rectified it now - a silly mistake!

Thanks again,

Jamie