| lmplot {cba} | R Documentation |
Plotting Logical Matrices
Description
Implements a wrapper function to image that produces a black and
white or gray-scale plot of a logical matrix.
Usage
lmplot(x, block.size = 1, gray = FALSE, xlab = "", ylab = "",
axes = FALSE, ...)
Arguments
x |
a logical matrix. |
block.size |
the interpolation block size. |
gray |
optionally use a gray scale. |
xlab |
title for the x axis. |
ylab |
title for the y axis. |
axes |
option to plot axes. |
... |
further arguments to |
Details
TRUE is represented by the color white and FALSE by the
color black.
A lower resolution can be obtained by specifying an (interpolation) block size greater than one. Block densities can then be visualized by using the gray scale option. The number of levels of the palette corresponds to the block size but is capped to 8 levels (excluding white). Note that the opacity (blackness) corresponds with density (as on photographic film).
Author(s)
Christian Buchta
See Also
lminter for interpolating logical matrices and
image for further plotting options
Examples
###
x <- matrix(sample(c(FALSE, TRUE), 64, rep=TRUE), ncol=8)
lmplot(x)
### use lower resolution
lmplot(x, block.size=2)
### use gray scale
lmplot(x, block.size=2, gray=TRUE)