colon {rda}

Colon Cancer Microarray Data

Description

The colon data contains two objects: colon.x, microarray expression data for 62 colon cancer samples and colon.y, the class labels for these samples.

Usage

data(colon)

Format

An expression data matrix (62x2000) colon.x and a class label vector (62) colon.y for 62 samples.

Details

colon.y is the class labels of the 62 samples. colon.x is the microarray expression data matrix with each row representing a sample.

Source

Alon, U. et al. (1999) Broad Patterns of Gene Expression Revealed by Clustering Analysis of Tumor and Normal Colon Tissues Probed by Oligonucleotide Arrays. PNAS, Vol 96, p6745-6750. The data set is available at http://microarray.princeton.edu/oncology/.

References

Y. Guo, T. Hastie, R. Tibshirani, (2006). Regularized linear discriminant analysis and its application in microarrays, Biostatistics 8 pp. 86–100. doi:10.1093/biostatistics/kxj035.