readExpData {gage} | R Documentation

## Read in expression data

### Description

This is a wrapper function of `read.delim` for reading in expression data matrix in tab-delimited format.

### Usage

    readExpData(file = "arrayData.txt", ...)

### Arguments

`file` | character string, the full path name to the expression data file in tab-delimited format. Rows are genes, columns are array samples.
`...` | other arguments to be passed into `read.delim` function.

### Details

`readExpData` is a wrapper function of `read.delim`. Please check help information of `read.delim` for more details.

### Value

A data.frame (matrix-like) of gene expression data. Rows are genes, columns are array samples.

### Author(s)

Weijun Luo <luo_weijun@yahoo.com>

### References

Luo, W., Friedman, M., Shedden K., Hankenson, K. and Woolf, P GAGE: Generally Applicable Gene Set Enrichment for Pathways Analysis. BMC Bioinformatics 2009, 10:161

### See Also

`readList` read in gene set list

### Examples

    filename=system.file("extdata/gse16873.demo", package = "gage")
    demo.data=readExpData(filename, row.names=1)
    head(demo.data)

[Package gage version 2.28.2 Index]