image: Matrix Image Plots

In cba: Clustering for Business Analytics

Matrix Image Plots

Description

Implements a wrapper function to image for proper plotting of objects of class matrix and dist.

Usage

implot(x, xlab = "", ylab = "", axes = FALSE, ticks = 10,
       las = 2, ...)

Arguments

x	an object of class matrix or dist.
xlab, ylab	labels for the x and y axis.
axes	logical, indicating whether dimnames(x) should be drawn on the plot.
ticks	the number of tick-marks to use.
las	the axis style to use (see par).
...	further arguments to image.

Details

Plots an object of class matrix in its original row and column orientation. This means, in a plot the columns become the x-coordinates and the reversed rows the y-coordinates.

If x is of class dist it is coerced to full-storage matrix representation.

Value

Returns the transformed x invisibly.

Author(s)

Christian Buchta

See Also

image and par for details.

Examples

x <- matrix(sample(c(FALSE, TRUE),100,rep=TRUE),ncol=10,
	    dimnames=list(1:10,LETTERS[1:10]))
implot(x)
implot(x, col=c("white","black"), axes = TRUE)

cba documentation built on Sept. 11, 2024, 9:32 p.m.