Drop first category of each variable from covariance matrix.
authorJohn Darrington <john@darrington.wattle.id.au>
Sat, 31 Oct 2009 07:42:25 +0000 (08:42 +0100)
committerJohn Darrington <john@darrington.wattle.id.au>
Sat, 31 Oct 2009 07:42:25 +0000 (08:42 +0100)
commita741cf4e8348e478ec5e8658cebeb80dc0376b1a
treeed97d1509b39888ce0c4b05a82458f0642abaad1
parent5055ec22100c84153e76662bae23063408a6a935
Drop first category of each variable from covariance matrix.

Apparently it's not appropriate for the covariance matrix to
have a row/column for every categorical value.  One value per
categorical variable should be excluded.  This change drops
the first category encountered.
src/math/categoricals.c
src/math/covariance.c