densityscatter: Compute density of a scatterplot

In Starr: Simple tiling array analysis of Affymetrix ChIP-chip data

Description

A 2d density is computed by kde2D.

Usage

densityscatter(x,y,pch=19,cex=1,ncol=30,grid=100,palette="heat", add=F,...)

Arguments

x	x coordinate of data
y	y coordinate of data
pch	type of point
cex	A numerical value giving the amount by which plotting text and symbols should be magnified relative to the default
grid	Number of grid points in each direction
ncol	number of colors
palette	color palette to choose
add	should data points be added to an exisiting plot?
...	parameters passed to plot or points

Author(s)

Benedikt Zacher [e-mail]

See Also

kde2dplot

Examples

##
points = 10^4
x <- rnorm(points/2)
x = c(x,x+2.5)
y <- x + rnorm(points,sd=0.8)
x = sign(x)*abs(x)^1.3
densityscatter(x,y)

Starr documentation built on April 28, 2020, 7:52 p.m.