plotFB {limma} | R Documentation

## FB-Plot

### Description

Creates foreground-background plots.

### Usage

    plotFB(RG, array=1, lim="separate", pch=16, cex=0.2, ...)

### Arguments

`RG` | an `RGList` object.
`array` | integer giving the array to be plotted. Corresponds to columns of `R`, `G`, `Rb` and `Gb`.
`lim` | character string indicating whether the red and green plots should have `"separate"` or `"common"` x- and y- co-ordinate limits.
`pch` | vector or list of plotting characters. Defaults to integer code 16.
`cex` | numeric vector of plot symbol expansions.
`...` | any other arguments are passed to `plot`

### Details

A foreground-background plot is a plot of log2-foreground vs log2-background for a particular channel on a particular two-color array. This function produces a pair of plots, one for green and one for red, for a specified array.

See `points` for possible values for `pch`, `col` and `cex`.

### Value

A plot is created on the current graphics device.

### Author(s)

Gordon Smyth

### See Also

An overview of diagnostic functions available in LIMMA is given in 09.Diagnostics.

[Package limma version 2.6.2 Index]