Comment 1 for bug 184658

This problem also occurs when perfect clustering is requested. It is mostly fixed in the trunk; see

http://codebrowse.launchpad.net/~bgokgm/fair/trunk/revision/4

There is still a corner case in which simple structure or perfect clustering is insufficient to get the number of zeros the user requests into a particular factor. In that case the code will (correctly) squash more coefficients to zero but the degrees of freedom will not reflect this. A real fix will involve rechecking the degrees of freedom in the create_FAobject methods for restrictions.1storder, restrictions.general, and restrictions.2ndorder