true.member: The Pre-defined Class Memberships of 205 Genes According to GO Annotation
Description
The four classes are: Biosynthesis; Energy pathways; Nucleobase and Transport
It is used as true clusters (external knowledge) to compare performance of
different clustering methods.
Medvedovic M, Yeung KY and Bumgarner RE. 2004. Bayesian Mixture Model Based Clustering of Replicated Microarray Data.
Bioinformatics, 22;20(8):1222-32.