outliers Outliers that LE+k-means captures into a separate cluster, the associated Affymetrix probes are 1427262_at, 1427263_at, 1436936_s_at. All three probes are associated to XIST, a gene that is transcribed and spliced but does not appear to encode a protein. XIST inactivation is known to be an early developmental process in mammalian females.
Ehler et al. BMC Proceedings 2011 5(Suppl 2):S3 doi:10.1186/1753-6561-5-S2-S3