limma: plotFB – R documentation

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limma

plotFB

FB-Plot

Description

Creates foreground-background plots.

Usage

## S3 method for class 'RGList'
plotFB(x, array = 1, lim = "separate", pch = 16, cex = 0.3,
     xlab = "log2 Background", ylab = "log2 Foreground", main = colnames(x)[array], ...)
## S3 method for class 'EListRaw'
plotFB(x, array = 1, pch = 16, cex=0.3,
     xlab = "log2 Background", ylab = "log2 Foreground", main = colnames(x)[array], ...)

Arguments

`x`	an `RGList` or `EListRaw` object.
`array`	integer giving the array to be plotted.
`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.
`xlab`	character string, label for x-axis.
`ylab`	character string, label for y-axis.
`main`	character string, title for plot.
`...`	any other arguments are passed to `plot`.

Details

A foreground-background plot is a plot of log2-foreground vs log2-background for a particular array. For two-color arrays, this function produces a pair of plots, one for the green channel and one for the red.

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

Value

A plot is created on the current graphics device.

Author(s)

Gordon Smyth