sizeplot: Plot with repeated symbols by size

In plotrix: Various Plotting Functions

Plot with repeated symbols by size

Description

Plots a set of (x,y) data with repeated points denoted by larger symbol sizes

Usage

 sizeplot(x, y, scale=1, pow=0.5, powscale=TRUE, size=c(1,4), add=FALSE, ...)

Arguments

x	x coordinates of data
y	y coordinates of data
scale	scaling factor for size of symbols
pow	power exponent for size of symbols
powscale	(logical) use power scaling for symbol size?
size	(numeric vector) min and max size for scaling, if powscale=FALSE
add	(logical) add to an existing plot?
...	other arguments to ‘⁠plot()⁠’ or ‘⁠points()⁠’

Details

Most useful for plotting (e.g.) discrete data, where repeats are likely. If all points are repeated equally, gives a warning. The size of a point is given by scale*n^pow, where n is the number of repeats, if powscale is TRUE, or it is scaled between size[1] and size[2], if powscale is FALSE.

Value

A plot is produced on the current device, or points are added to the current plot if ‘⁠add=TRUE⁠’.

Author(s)

Ben Bolker

See Also

symbols

Examples

 x <- c(0.1,0.1,0.1,0.1,0.1,0.2,0.2,0.2,0.2,0.3,0.3)
 y <- c( 1,  1,  1,  1,  2,  2,  2,  3,  3,  4,  5 )
 plot(x,y)
 sizeplot(x,y)
 sizeplot(x,y,pch=2)

plotrix documentation built on Nov. 10, 2023, 5:07 p.m.