[pymvpa] Surface voxel selection saving error

[Swaroop Guntupalli]

I forgot to mention that the loaded voxel selction works fine.
It's just when I try to save it with h5py, even just after loading, it
crashes.

On Mon, Oct 12, 2015 at 1:02 PM, Swaroop Guntupalli <swaroopgj at gmail.com>
wrote:

> Hi Nick,
>
> I had a voxel selection pre-computed from a while ago (Oct. 2013).
> When I try to save it now using h5py, it gives the following error (pasted
> below).
>
> Is there a way to resolve this without re-computing the voxel selection?
> I can point you to the voxel selection on hydra if that helps.
>
> Thanks,
> Swaroop
>
>
> /PyMVPA/mvpa2/base/hdf5.py in obj2hdf(hdf, obj, name, memo, noid, **kwargs)
>     758     # try disassembling the object
>     759     try:
> --> 760         pieces = obj.__reduce__()
>     761         if __debug__:
>     762             debug('HDF5', "Reduced '%s' (ref: %i) in [%s]"
>
> /PyMVPA/mvpa2/misc/surfing/volume_mask_dict.pyc in __reduce__(self)
>     568         return (self.__class__,
>     569                 (self._volgeom, self._source),
> --> 570                 self.__getstate__())
>     571
>     572     @deprecated("should be used for testing compatibility only - "
>
> /PyMVPA/mvpa2/misc/surfing/volume_mask_dict.pyc in __getstate__(self)
>     599         # here a new tuple is created
>     600         s3 = _dict_with_arrays2array_tuple(s[3])
> --> 601         s4 = _dict_with_arrays2array_tuple(s[4])
>     602         ss = s[:3] + (s3, s4)
>     603
>
> /PyMVPA/mvpa2/misc/surfing/volume_mask_dict.pyc in
> _dict_with_arrays2array_tuple(d)
>     938         # probably src2aux, so run recursively
>     939         return dict((k, _dict_with_arrays2array_tuple(v))
> --> 940                         for k, v in d.iteritems())
>     941
>     942     keys = np.asarray(d.keys())
>
> /PyMVPA/mvpa2/misc/surfing/volume_mask_dict.pyc in <genexpr>((k, v))
>     938         # probably src2aux, so run recursively
>     939         return dict((k, _dict_with_arrays2array_tuple(v))
> --> 940                         for k, v in d.iteritems())
>     941
>     942     keys = np.asarray(d.keys())
>
> /PyMVPA/mvpa2/misc/surfing/volume_mask_dict.pyc in
> _dict_with_arrays2array_tuple(d)
>     965             # ensure all values in the dict have the same datatype
>     966             raise ValueError('Type mismatch for keys %s and %s: %s
> != %s' %
> --> 967                                 (keys[0], key, data.dtype,
> v.dtype))
>     968
>     969         idxs = np.arange(length) + pos
>
> ValueError: Type mismatch for keys 0 and 41: float64 != float32
>
>
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