twilight.getmatrix {twilight} | R Documentation

## Internal function to extract the gene expression matrix from an expression set

### Description

If the input object is of class `exprSet`, the function extracts the gene expression matrix.

### Usage

    twilight.getmatrix(xin)

### Arguments

`xin` | Input object of class `exprSet`.

### Value

Returns the matrix of gene expression values.

### Author(s)

Stefanie Scheid http://www.molgen.mpg.de/~scheid

### References

Scheid S and Spang R (2004): A stochastic downhill search algorithm for estimating the local false discovery rate, IEEE TCBB 1(3), 98–108.

### See Also

`twilight.pval`

[Package twilight version 1.4.0 Index]