brain {rda}

Brain Cancer Microarray Data

Description

The brain data contains two objects: brain.x, microarray expression data for 42 brain cancer samples and brain.y, the class labels for these samples.

Usage

data(brain)

Format

An expression data matrix (42x5597) brain.x and a class label vector (42) brain.y for 42 samples.

Details

brain.y is the class labels of the 42 samples. brain.x is the microarray expression data matrix with each row representing a sample.

Source

Pomeroy, S. et al. (2002) Prediction of Central Nervous System Embryonal Tumor Outcome Based on Gene Expression. Nature, Vol 415, p436-442.

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.