readWriteFirst {GWASTools} | R Documentation

## Read and write the first n lines of a file

### Description

Read first `n` lines of `filein` and write them to `fileout`, where `filein` and `fileout` are file names.

### Usage

    readWriteFirst(filein, fileout, n)

### Arguments

`filein` | input file
`fileout` | output file
`n` | number of lines to write

### Author(s)

Cathy Laurie

### Examples

    path <- system.file("extdata", "affy_raw_data", package="GWASdata")
    file <- paste(path, list.files(path)[1], sep="/")
    outf <- tempfile()
    readWriteFirst(file, outf, 20)
    file.remove(outf)

[Package GWASTools version 1.40.0 Index]