brain data contains two objects:
expression data for 42 brain cancer samples and
brain.y, the class
labels for these samples.
An expression data matrix (42x5597)
brain.x and a class label
brain.y for 42 samples.
brain.y is the class labels of the 42 samples.
the microarray expression data matrix with each row representing a sample.
Pomeroy, S. et al. (2002) Prediction of Central Nervous System Embryonal Tumor Outcome Based on Gene Expression. Nature, Vol 415, p436-442. The data set is available at http://www.broad.mit.edu/mpr/CNS/.
Guo, Y. et al. (2004) Regularized Discriminant Analysis and Its Application in Microarrays, Technical Report, Department of Statistics, Stanford University.
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