heatmatrix: Simple Heatmap Plot

In caroline: A Collection of Database, Data Structure, Data Conversion, Visualization, Reporting, and General Utility Functions

Simple Heatmap Plot

Description

This is a very simplified heat-map function–a convenient wrapper around the 'image' function.

Usage

heatmatrix(x, values=TRUE, clp=c('bottom','top'), rlp=c('left','right'), 
  xadj=.05, yadj=1, ylab.cntr=FALSE, cex=1, axis.cex=1, text.col=1, xlab='',ylab='',...)

Arguments

x	A matrix
values	boolean: should the values be plotted over each cell?
clp	column label position: either 'bottom' or 'top'.
rlp	row label position: either 'right' or 'left'.
xadj	x-adjust of the row labels.
yadj	y-adjust of the column labels.
ylab.cntr	boolean for justification of row labels.
cex	character expansion factor for values in cells if values == TRUE.
axis.cex	character expansion factor for axis tick mark labels.
text.col	color of the text printed over the colored rectangle of all matrix cells.
xlab	x axis label.
ylab	y axis label.
...	other parameters passed on to image().

Value

A heat-map plot.

See Also

image, heatmap, heatmap.2

Examples

data(mtcars)
x  <- as.matrix(mtcars)

heatmatrix(x)

caroline documentation built on July 15, 2026, 9:06 a.m.