## we need to load some libraries and do some preparation on the initial data
## sets. the affy library is a set of standard analysis routines. while ALLMLL
## contains the data reported at Mary E. Ross, Xiaodong Zhou, Guangchun Song,
## Sheila A. Shurtleff, Kevin Girtman, W. Kent Williams, Hsi-Che Liu, Rami
## Mahfouz, Susana C. Raimondi, Noel Lenny, Anami Patel, and James R. Downing
## (2003) Classification of pediatric acute lymphoblastic leukemia by gene
## expression profiling Blood 102: 2951-2959
library( "affy" )
library( "ALLMLL" )


data( MLL.B )
Data <- MLL.B[, c(2,1,3:5,14,6,13)]
sampleNames(Data) <- letters[1:8]