Dear SPM users,
We are trying to make a conjunction analysis of two contrasts.
Contrast 1: 1 –2 0 1 0 1 0 –2 1 0 0 0
Contrast 2: 0 0 1 0 –2 0 1 0 0 1 –2 1
The parameters corresponding to contrast components are not estimable by
themselves. We thought that the contrasts would be orthogonal, but SPM
still suggests “orthogonalization order”. Why is that?
Best wishes,
Esa Wallius
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