leukemia {distanceHD}R Documentation

Gene expression data from Golub et al. (1999)

Description

Gene expression data (3051 genes and 38 tumor mRNA samples) from the leukemia microarray study of Golub et al. (1999). )

Usage

data(leukemia)

Format

A list with the following elements:

Source

The data are described in Golub et al. (1999) and can be freely downloaded from http://www.broadinstitute.org/cgi-bin/cancer/publications/pub_paper.cgi?paper_id=43.

References

S. Dudoit, J. Fridlyand and T. P. Speed (2002). Comparison of discrimination methods for the classification of tumors using gene expression data, Journal of the American Statistical Association 97, 77-87.

Golub et al. (1999). Molecular classification of cancer: class discovery and class prediction by gene expression monitoring, Science 286, 531-537.

See Also

plsgenomics::leukemia

Examples

data(leukemia)

# how many samples and genes?
dim(leukemia$X)

# how many samples of class 1 and 2, respectively?
table(leukemia$Y)

[Package distanceHD version 1.2 Index]