R: Magnitude size legend

sizelegend {GEOmap} | R Documentation

## Magnitude size legend

### Description

Plot a simple legend of magnitude sizes at the top of a plot.

### Usage

    sizelegend(se, am, pch = pch)

### Arguments

`se` | vector, sizes
`am` | vector, labels
`pch` | plotting character

### Details

A box around the legend is currently introduced.

### Value

Graphical Side Effect

### Author(s)

Jonathan M. Lees<jonathan.lees@unc.edu>

### Examples

    x = rnorm(30)
    y = rnorm(30)

    mags = runif(30, 1,8)

    plot(x, y, type="n")

    esiz = exp(mags)
    rsiz = RPMG::RESCALE(esiz, .4, 10, min(esiz), max(esiz))
    points(x, y, pch=1, cex=rsiz)

    am = pretty(mags)
    am = am[am>min(mags) & am<max(mags) ]

    em = exp(am)
    se = RPMG::RESCALE(em, .4, 10, min(esiz), max(esiz))

    sizelegend(se, am, pch=1)

[Package GEOmap version 2.4-0 Index]