[pymvpa] Sensitivity analysis also fails

[Yaroslav Halchenko]

wild guess is that you have not defined 'chunks' correctly, so splitter
produces actually empty dataset (None) for 'training', thus the failure

it is always good to have a look at

print fmri_src_ev.summary()

;-)



On Thu, 15 Apr 2010, Temilade Adelore wrote:

>    Hello Yaroslav,
>    Thank you for responding.
>    Here the link to my code on gist <[1]http://gist.github.com/367912>
>    At line 93 in the script I get the following error:
>    File "/usr/lib/pymodules/python2.6/matplotlib/image.py", line 294, in
>    set_data
>    raise TypeError("Invalid dimensions for image data")
>    TypeError: Invalid dimensions for image data
>    At line 116 in the script I also get the following error:
>    File "/usr/lib/pymodules/python2.6/mvpa/clfs/base.py", line 369, in
>    train
>    if dataset.nfeatures == 0 or dataset.nsamples == 0:
>    AttributeError: 'NoneType' object has no attribute 'nfeatures'
>    However when I type in following in the shell I get:
>    >>> fmri_src_ev.nfeatures
>    405504
>    >>> fmri_src_ev.nsamples
>    44

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