R: Produce a Boxplot Annotated with the Number of Observations

boxplot2 {gplots} | R Documentation

## Produce a Boxplot Annotated with the Number of Observations

### Description

This funcntion uses `boxplot` to produce a boxplot which is then annotated with the number of observations in each group.

### Usage

    boxplot2(..., top=FALSE, shrink=1, textcolor=NULL)

### Arguments

`...` | parameters passed to `boxplot`.
`top` | logical indicating whether the number of observations should be added to the top or the bottom of the plotting region. Defaults to `FALSE`.
`shrink` | value to shrink character size (cex) when annotating.
`textcolor` | text color.

### Note

This function replaces `boxplot.n`, which has been deprecated avoid potential problems with S3 method dispatching.

### Author(s)

Gregory R. Warnes greg@warnes.net

### See Also

`boxplot`, `text`

### Examples

    data(state)

    # n's at bottom
    boxplot2( state.area ~ state.region)

    # n's at top
    boxplot2( state.area ~ state.region, top=TRUE)

    # small red text
    boxplot2( state.area ~ state.region, shrink=0.8, textcolor="red")

[Package gplots version 3.0.1 Index]