pymvpa.py

In [127]: zm_samples.shape
Out[127]: (22, 50)

In [128]: grpinfo.shape
Out[128]: (22,)

In [129]: grpinfo[0]
Out[129]: 'a'

In [130]: ds = dataset_wizard(zm_samples, targets=grpinfo, chunks=1)

In [131]: clf = kNN(k=1, dfx=one_minus_correlation, voting='majority')

In [132]: terr = TransferError(clf)

In [133]: hspl = HalfSplitter()

In [134]: cvte = CrossValidatedTransferError(terr, splitter=hspl)

In [135]: cv_results = cvte(ds)
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)

/mindhive/nklab/projects/ellison/zfMRI/scripts/getroiinfo.py in <module>()
----> 1 
      2 
      3 
      4 
      5 

/software/python/2.6/lib/python2.6/site-packages/pymvpa-0.5.0.dev-py2.6-linux-x86_64.egg/mvpa/measures/base.pyc in __call__(self, dataset)
    110         container applying a post-processing mapper if such is defined.
    111         """
--> 112         result = self._call(dataset)
    113         result = self._postcall(dataset, result)
    114 

/software/python/2.6/lib/python2.6/site-packages/pymvpa-0.5.0.dev-py2.6-linux-x86_64.egg/mvpa/algorithms/cvtranserror.pyc in _call(self, dataset)
    172                     for c in split[0].sa[self.__splitter.splitattr].unique]),
    173                    ','.join([str(c)
--> 174                     for c in split[1].sa[self.__splitter.splitattr].unique])))
    175 
    176             # only train classifier if splitter provides something in first


AttributeError: 'NoneType' object has no attribute 'sa'