volcanoplot {limma} | R Documentation

## Volcano Plot

### Description

Creates a volcano plot of log-fold changes versus log-odds of differential expression.

### Usage

    volcanoplot(fit, coef=1, highlight=0, names=fit$genes$ID, ...)

### Arguments

`fit` | an `MArrayLM` fitted linear model object
`coef` | integer giving the coefficient
`highlight` | number of top genes to be highlighted
`names` | character vector giving text labels associated with the genes and to be used in highlighting
`...` | any other arguments are passed to `plot`

### Details

A volcano plot is any plot which displays fold changes versus a measure of statistical significance of the change.

### Value

A plot is created on the current graphics device.

### Author(s)

Gordon Smyth

### See Also

An overview of presentation plots following the fitting of a linear model in LIMMA is given in 06.LinearModels.

[Package limma version 2.2.0 Index]