[pymvpa] normalise

[cfygj]

By normalising data, I want to realise that (1)subtracting from the signal value at each time point of each voxel the mean signal value across all voxels of the ROI at the same time point, and (2) dividing the result by the standard deviation of the signal from all voxels of the ROI at that time point.
I have used the command line like zscore(ds, chunks_attr='chunks', param_est = ('targets',['0'])). However, the elements of data
were replaced with [[Naf, Naf, Naf,...],[Naf, Naf,...],[Naf, Naf, Naf,...]...]. So I must modify this command line. But I don't know how do it.






At 2014-08-20 05:52:54, "Nick Oosterhof" <nikolaas.oosterhof at unitn.it> wrote:
>
>On Aug 20, 2014, at 5:10 AM, cfygj <cfygj at 126.com> wrote:
>
>> I don't know how to fill the commandline: zscore(ds, chunks_attr='chunks', param_est=(  )). Could you help me?
>
>What do you mean "to fill the commandline"? You cannot execute the command? You get an error? 
>
>As in other posts you seem to be able to execute python expressions, I'm not sure what the problem is. Can you be more specific?
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