Beispiel #1
0
def test_source_space():
    "Test SourceSpace Dimension"
    subject = 'fsaverage'
    data_path = mne.datasets.sample.data_path()
    mri_sdir = os.path.join(data_path, 'subjects')
    mri_dir = os.path.join(mri_sdir, subject)
    label_dir = os.path.join(mri_dir, 'label')
    label_ba1 = mne.read_label(os.path.join(label_dir, 'lh.BA1.label'))
    label_v1 = mne.read_label(os.path.join(label_dir, 'lh.V1.label'))
    label_mt = mne.read_label(os.path.join(label_dir, 'lh.MT.label'))
    label_ba1_v1 = label_ba1 + label_v1
    label_v1_mt = label_v1 + label_mt

    src = datasets._mne_source_space(subject, 'ico-5', mri_sdir)
    source = SourceSpace.from_mne_source_spaces(src, 'ico-5', mri_sdir)
    source_v1 = source[source.dimindex(label_v1)]
    eq_(source_v1, SourceSpace.from_mne_source_spaces(src, 'ico-5', mri_sdir,
                                                      label=label_v1))
    source_ba1_v1 = source[source.dimindex(label_ba1_v1)]
    source_v1_mt = source[source.dimindex(label_v1_mt)]
    source_v1_intersection = source_ba1_v1.intersect(source_v1_mt)
    assert_source_space_equal(source_v1, source_v1_intersection)

    # index from label
    index = source.index_for_label(label_v1)
    assert_array_equal(index.source[index.x].vertno[0],
                       np.intersect1d(source.lh_vertno, label_v1.vertices, 1))

    # parcellation and cluster localization
    parc = mne.read_labels_from_annot(subject, parc='aparc', subjects_dir=mri_sdir)
    indexes = [source.index_for_label(label) for label in parc
               if len(label) > 10]
    x = np.vstack([index.x for index in indexes])
    ds = source._cluster_properties(x)
    for i in range(ds.n_cases):
        eq_(ds[i, 'location'], parc[i].name)

    # multiple labels
    lingual_index = source.dimindex('lingual-lh')
    cuneus_index = source.dimindex('cuneus-lh')
    assert_array_equal(source.dimindex(('cuneus-lh', 'lingual-lh')),
                       np.logical_or(cuneus_index, lingual_index))
    lingual_source = source[lingual_index]
    cuneus_source = source[cuneus_index]
    assert_raises(IndexError, lingual_source.dimindex, cuneus_source)
    sub_source = source[source.dimindex(('cuneus-lh', 'lingual-lh'))]
    eq_(sub_source[sub_source.dimindex('lingual-lh')], lingual_source)
    eq_(sub_source[sub_source.dimindex('cuneus-lh')], cuneus_source)
    eq_(len(sub_source), len(lingual_source) + len(cuneus_source))

    # indexing
    tgt = np.hstack(sub_source.vertno)
    assert_array_equal([i for i in sub_source], tgt)
    assert_array_equal([sub_source[i] for i in range(len(sub_source))], tgt)
    # hemisphere indexing
    lh = source.dimindex('lh')
    source_lh = source[lh]
    eq_(source_lh.dimindex('rh'), slice(0, 0))
    eq_(source_lh.dimindex('lh'), slice(len(source_lh)))
Beispiel #2
0
def test_source_space():
    "Test SourceSpace Dimension"
    subject = 'fsaverage'
    data_path = mne.datasets.sample.data_path()
    mri_sdir = os.path.join(data_path, 'subjects')
    mri_dir = os.path.join(mri_sdir, subject)
    label_dir = os.path.join(mri_dir, 'label')
    label_ba1 = mne.read_label(os.path.join(label_dir, 'lh.BA1.label'))
    label_v1 = mne.read_label(os.path.join(label_dir, 'lh.V1.label'))
    label_mt = mne.read_label(os.path.join(label_dir, 'lh.MT.label'))
    label_ba1_v1 = label_ba1 + label_v1
    label_v1_mt = label_v1 + label_mt

    src = datasets._mne_source_space(subject, 'ico-5', mri_sdir)
    source = SourceSpace.from_mne_source_spaces(src, 'ico-5', mri_sdir)
    source_v1 = source[source.dimindex(label_v1)]
    eq_(source_v1, SourceSpace.from_mne_source_spaces(src, 'ico-5', mri_sdir,
                                                      label=label_v1))
    source_ba1_v1 = source[source.dimindex(label_ba1_v1)]
    source_v1_mt = source[source.dimindex(label_v1_mt)]
    source_v1_intersection = source_ba1_v1.intersect(source_v1_mt)
    assert_source_space_equal(source_v1, source_v1_intersection)

    # index from label
    index = source.index_for_label(label_v1)
    assert_array_equal(index.source[index.x].vertno[0],
                       np.intersect1d(source.lh_vertno, label_v1.vertices, 1))

    # parcellation and cluster localization
    parc = mne.read_labels_from_annot(subject, parc='aparc', subjects_dir=mri_sdir)
    indexes = [source.index_for_label(label) for label in parc
               if len(label) > 10]
    x = np.vstack([index.x for index in indexes])
    ds = source._cluster_properties(x)
    for i in xrange(ds.n_cases):
        eq_(ds[i, 'location'], parc[i].name)

    # multiple labels
    lingual_index = source.dimindex('lingual-lh')
    cuneus_index = source.dimindex('cuneus-lh')
    assert_array_equal(source.dimindex(('cuneus-lh', 'lingual-lh')),
                       np.logical_or(cuneus_index, lingual_index))
    lingual_source = source[lingual_index]
    cuneus_source = source[cuneus_index]
    assert_raises(IndexError, lingual_source.dimindex, cuneus_source)
    sub_source = source[source.dimindex(('cuneus-lh', 'lingual-lh'))]
    eq_(sub_source[sub_source.dimindex('lingual-lh')], lingual_source)
    eq_(sub_source[sub_source.dimindex('cuneus-lh')], cuneus_source)
    eq_(len(sub_source), len(lingual_source) + len(cuneus_source))

    # indexing
    tgt = np.hstack(sub_source.vertno)
    assert_array_equal([i for i in sub_source], tgt)
    assert_array_equal([sub_source[i] for i in xrange(len(sub_source))], tgt)
    # hemisphere indexing
    lh = source.dimindex('lh')
    source_lh = source[lh]
    eq_(source_lh.dimindex('rh'), slice(0, 0))
    eq_(source_lh.dimindex('lh'), slice(0, len(source_lh)))
Beispiel #3
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def test_source_space():
    "Test SourceSpace Dimension"
    subject = 'fsaverage'
    data_path = mne.datasets.sample.data_path()
    mri_sdir = os.path.join(data_path, 'subjects')
    mri_dir = os.path.join(mri_sdir, subject)
    src_path = os.path.join(mri_dir, 'bem', subject + '-ico-5-src.fif')
    label_dir = os.path.join(mri_dir, 'label')
    label_ba1 = mne.read_label(os.path.join(label_dir, 'lh.BA1.label'))
    label_v1 = mne.read_label(os.path.join(label_dir, 'lh.V1.label'))
    label_mt = mne.read_label(os.path.join(label_dir, 'lh.MT.label'))
    label_ba1_v1 = label_ba1 + label_v1
    label_v1_mt = label_v1 + label_mt

    src = mne.read_source_spaces(src_path)
    source = SourceSpace((src[0]['vertno'], src[1]['vertno']), subject,
                         'ico-5', mri_sdir)
    index = source.dimindex(label_v1)
    source_v1 = source[index]
    index = source.dimindex(label_ba1_v1)
    source_ba1_v1 = source[index]
    index = source.dimindex(label_v1_mt)
    source_v1_mt = source[index]
    index = source_ba1_v1.dimindex(source_v1_mt)
    source_v1_intersection = source_ba1_v1[index]
    assert_source_space_equal(source_v1, source_v1_intersection)

    # index from label
    index = source.index_for_label(label_v1)
    assert_array_equal(index.source[index.x].vertno[0],
                       np.intersect1d(source.lh_vertno, label_v1.vertices, 1))

    # parcellation and cluster localization
    parc = mne.read_labels_from_annot(subject, parc='aparc', subjects_dir=mri_sdir)
    indexes = [source.index_for_label(label) for label in parc
               if len(label) > 10]
    x = np.vstack([index.x for index in indexes])
    ds = source._cluster_properties(x)
    for i in xrange(ds.n_cases):
        eq_(ds[i, 'location'], parc[i].name)

    # multiple labels
    lingual_index = source.dimindex('lingual-lh')
    cuneus_index = source.dimindex('cuneus-lh')
    assert_array_equal(source.dimindex(('cuneus-lh', 'lingual-lh')),
                       np.logical_or(cuneus_index, lingual_index))
    lingual_source = source[lingual_index]
    cuneus_source = source[cuneus_index]
    sub_source = source[source.dimindex(('cuneus-lh', 'lingual-lh'))]
    eq_(sub_source[sub_source.dimindex('lingual-lh')], lingual_source)
    eq_(sub_source[sub_source.dimindex('cuneus-lh')], cuneus_source)
    eq_(len(sub_source), len(lingual_source) + len(cuneus_source))
Beispiel #4
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def test_source_space():
    "Test SourceSpace Dimension"
    subject = 'fsaverage'
    data_path = mne.datasets.sample.data_path()
    mri_sdir = os.path.join(data_path, 'subjects')
    mri_dir = os.path.join(mri_sdir, subject)
    src_path = os.path.join(mri_dir, 'bem', subject + '-ico-5-src.fif')
    label_dir = os.path.join(mri_dir, 'label')
    label_ba1 = mne.read_label(os.path.join(label_dir, 'lh.BA1.label'))
    label_v1 = mne.read_label(os.path.join(label_dir, 'lh.V1.label'))
    label_mt = mne.read_label(os.path.join(label_dir, 'lh.MT.label'))
    label_ba1_v1 = label_ba1 + label_v1
    label_v1_mt = label_v1 + label_mt

    src = mne.read_source_spaces(src_path)
    source = SourceSpace((src[0]['vertno'], src[1]['vertno']), subject,
                         'ico-5', mri_sdir)
    index = source.dimindex(label_v1)
    source_v1 = source[index]
    index = source.dimindex(label_ba1_v1)
    source_ba1_v1 = source[index]
    index = source.dimindex(label_v1_mt)
    source_v1_mt = source[index]
    index = source_ba1_v1.dimindex(source_v1_mt)
    source_v1_intersection = source_ba1_v1[index]
    assert_source_space_equal(source_v1, source_v1_intersection)

    # index from label
    index = source.index_for_label(label_v1)
    assert_array_equal(index.source[index.x].vertno[0],
                       np.intersect1d(source.lh_vertno, label_v1.vertices, 1))

    # parcellation and cluster localization
    if mne.__version__ < '0.8':
        return
    parc = mne.read_labels_from_annot(subject,
                                      parc='aparc',
                                      subjects_dir=mri_sdir)
    indexes = [
        source.index_for_label(label) for label in parc if len(label) > 10
    ]
    x = np.vstack([index.x for index in indexes])
    ds = source._cluster_properties(x)
    for i in xrange(ds.n_cases):
        eq_(ds[i, 'location'], parc[i].name)