read.targets {Agi4x44PreProcess} | R Documentation

## read the target file

### Description

The target file is a txt file where every input file (array, sample) is attached to a experimental condition

### Usage

            read.targets(infile)

### Arguments

`infile` | name of the target file, for instance 'targets.txt'

### Details

Intention of data preprocessing using Agi4x44PreProces is to carry out a subsequent statistical analysis searching for genes that are differentially expressed between different experimental conditions. First, in the 'target file' we specify the experimental conditions under which the data have been generated. From this primary statistical analysis, one can be perform other analysis such as Functional Enrichment analysis, etc ... The target file MUST contain the following columns: -FileName : Name of the array file, xxx.txt -Treatment : Treatment of the file xxx.txt -GErep : Treatment of the file xxx.txt in numeric code, from 'treatment-1' to 'treatment-N' Other OPTIONAL columns can be -Subject : If treatment are paired by 'Subject': -Array : If we want to take into account that some samples have been hibridyzed on the same Agi4x44 platform

### Value

A 'data.frame' containing by columns the columns specified in targets.txt

### Author(s)

Pedro Lopez-Romero

### See Also

read.table

### Examples

    ## Not run:
            targets=read.targets(infile="targets.txt")
    ## End(Not run)
            data(targets)

[Package Agi4x44PreProcess version 1.4.0 Index]