[pymvpa] mask_vt.nii.gz

[jie zhang]

Dear experts, 
I was trying to follow the tutorial step by step, but got stuck because the scripts can not find the file named "mask_vt.nii.gz". I was using neurodebian, and I think I installed everything mentioned in the documentation. Could anybody please point out to me what I missed, or where I can download the tutorial dataset? many thanks!
Mike


here is the error message: 

In [2]: ds = get_haxby2001_data()ERROR: An unexpected error occurred while tokenizing inputThe following traceback may be corrupted or invalidThe error message is: ('EOF in multi-line statement', (96, 0))
---------------------------------------------------------------------------IOError                                   Traceback (most recent call last)
/usr/share/pyshared/mvpa/<ipython console> in <module>()
/usr/lib/pymodules/python2.6/mvpa2/tutorial_suite.pyc in get_haxby2001_data(path, roi)     40 def get_haxby2001_data(path=None, roi='vt'):     41     if path is None:---> 42         ds = get_raw_haxby2001_data(roi=roi)     43     else:     44         ds = get_raw_haxby2001_data(path, roi=roi)
/usr/lib/pymodules/python2.6/mvpa2/tutorial_suite.pyc in get_raw_haxby2001_data(path, roi)     35         return ds     36     else:---> 37         return load_datadb_tutorial_data(path=path, roi=roi)     38      39 
/usr/lib/pymodules/python2.6/mvpa2/misc/data_generators.pyc in load_datadb_tutorial_data(path, roi)    377     ds = fmri_dataset(samples=os.path.join(path, 'bold.nii.gz'),    378                       targets=attr.targets, chunks=attr.chunks,--> 379                       mask=mask)    380     return ds    381 
/usr/lib/pymodules/python2.6/mvpa2/datasets/mri.pyc in fmri_dataset(samples, targets, chunks, mask, sprefix, tprefix, add_fa)    204     # figure out what the mask is, but only handle known cases, the rest
    205     # goes directly into the mapper which maybe knows more
--> 206     maskimg = _load_anyimg(mask)    207     if maskimg is None:    208         pass
/usr/lib/pymodules/python2.6/mvpa2/datasets/mri.pyc in _load_anyimg(src, ensure, enforce_dim)    335         # try opening the beast; this might yield none in case of an unsupported
    336         # argument and is handled accordingly below
--> 337         data = _img2data(src)    338         if not data is None:    339             imgdata, imghdr, imgtype = data
/usr/lib/pymodules/python2.6/mvpa2/datasets/mri.pyc in _img2data(src)     58     if isinstance(src, str):     59         # filename
---> 60         img = nibabel.load(src)     61     else:     62         # assume this is an image already

/usr/lib/pymodules/python2.6/nibabel/loadsave.pyc in load(filename)     51         else:     52             klass =  spm2.Spm2AnalyzeImage---> 53     return klass.from_filename(filename)     54      55 
/usr/lib/pymodules/python2.6/nibabel/spatialimages.pyc in from_filename(klass, filename)    395     def from_filename(klass, filename):    396         file_map = klass.filespec_to_file_map(filename)--> 397         return klass.from_file_map(file_map)    398     399     @classmethod
/usr/lib/pymodules/python2.6/nibabel/analyze.pyc in from_file_map(klass, file_map)   1303         '''   1304         hdr_fh, img_fh = klass._get_fileholders(file_map)-> 1305         hdrf = hdr_fh.get_prepare_fileobj(mode='rb')   1306         header = klass.header_class.from_fileobj(hdrf)   1307         if hdr_fh.fileobj is None: # was filename
/usr/lib/pymodules/python2.6/nibabel/fileholders.pyc in get_prepare_fileobj(self, *args, **kwargs)     67             obj.seek(self.pos)     68         elif self.filename is not None:---> 69             obj = allopen(self.filename, *args, **kwargs)     70             if self.pos != 0:     71                 obj.seek(self.pos)
/usr/lib/pymodules/python2.6/nibabel/volumeutils.pyc in allopen(fname, *args, **kwargs)    847     else:    848         opener = open--> 849     return opener(fname, *args, **kwargs)    850     851 
/usr/lib/python2.6/gzip.pyc in open(filename, mode, compresslevel)     31      32     """---> 33     return GzipFile(filename, mode, compresslevel)     34      35 class GzipFile:
/usr/lib/python2.6/gzip.pyc in __init__(self, filename, mode, compresslevel, fileobj)     77             mode += 'b'     78         if fileobj is None:---> 79             fileobj = self.myfileobj = __builtin__.open(filename, mode or 'rb')     80         if filename is None:     81             if hasattr(fileobj, 'name'): filename = fileobj.name
IOError: [Errno 2] No such file or directory: './data/mask_vt.nii.gz'



 		 	   		  
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