read.matrix {limma} | R Documentation

## Read Matrix with Headers from File

### Description

Read a numeric matrix from a file assuming column headings on the first line. Not normally used directly by users.

### Usage

    read.matrix(file,nrows=0,skip=0,...)

### Arguments

`file` | character string giving the file name
`nrows` | maximum number of rows of data to read, if greater than zero
`skip` | number of lines of the data file to skip before reading data
`...` | any other arguments to be passed to `scan`

### Details

This function is similar to but faster than `read.table(file,header=TRUE)` when all the columns are numeric.

### Value

A numeric matrix with column names.

### Author(s)

Gordon Smyth

### See Also

`read.table`, `scan`.

An overview of LIMMA functions for reading data is given in 3.ReadingData.

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