## NCI 60 Data

### Description

NCI microarray data. The data contains expression levels on
6830 genes from 64 cancer cell lines. Cancer type is also recorded.

### Usage

`NCI60`

### Format

The format is a list containing two elements: `data`

and
`labs`

.

`data`

is a 64 by 6830 matrix of the expression values while
`labs`

is a vector listing the cancer types for the 64 cell lines.

### Source

The data come from Ross et al. (Nat Genet., 2000). More information can be obtained at
http://genome-www.stanford.edu/nci60/

### References

James, G., Witten, D., Hastie, T., and Tibshirani, R. (2013)
*An Introduction to Statistical Learning with applications in R*,
https://www.statlearning.com,
Springer-Verlag, New York

### Examples

```
table(NCI60$labs)
```