PlotMosaic: Mosaic Plots

Description

Plots a mosaic on the current graphics device.

Usage

PlotMosaic(x, main = deparse(substitute(x)), horiz = TRUE, cols = NULL,
           off = 0.02, mar = NULL, xlab = NULL, ylab = NULL,
           cex = par("cex"), las = 2, ...)

Arguments

a contingency table in array form, with optional category labels specified in the dimnames(x) attribute. The table is best created by the table() command. So far only 2-way tables are allowed.

main

character string for the mosaic title.

horiz

logical, defining the orientation of the mosaicplot. TRUE (default) makes a horizontal plot.

cols

the colors of the plot.

off

the offset between the rectangles. Default is 0.02.

mar

the margin for the plot.

xlab, ylab

x- and y-axis labels used for the plot; by default, the first and second element of names(dimnames(X)) (i.e., the name of the first and second variable in X).

cex

numeric character expansion factor; multiplied by par("cex") yields the final character size. NULL and NA are equivalent to 1.0.

las

the style of axis labels. 0 - parallel to the axis, 1 - horizontal, 2 - perpendicular, 3 - vertical.

...

additional arguments are passed to the text function.

Value

list with the midpoints of the rectangles

Details

The reason for this function to exist are the unsatisfying labels in base mosaicplot.

References

Friendly, M. (1994) Mosaic displays for multi-way contingency tables. Journal of the American Statistical Association, 89, 190-200.

Examples

Run this code

PlotMosaic(HairEyeColor[,,1])

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