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. 2010 Jul 14;31(1):371–383. doi: 10.1038/jcbfm.2010.112

Table 2. Median angle between PCA subspaces for different data preprocessing methods.

  Affine, Gauss08 Affine, Gauss12 Deformable, Gauss08 Deformable, Gauss12
Brainstem 46° 43° 42° 43°
Cerebellum 55° 44° 54° 38°
Whole brain 55° 45° 55° 35°
Pons 44° 45° 40° 43°
Thalamus 66° 43° 50° 43°

PCA, principal component analysis.

The angle is estimated using 500 bootstrap replications and the first three PCs included in the discrimination analysis.