plotMatrix: Plot a matrix.

In tsieger/tsiMisc: Miscelaneous utility functions, mostly related to exploratory statistical analysis

Plot a matrix.

Description

'plotMatrix' plots a matrix, decorated with the names of rows and columns, and, if requested, with lines separating specified rows/columns. Also, a legend gets drawn, by default.

Usage

plotMatrix(x, col = gray.colors(16), 
    transpose = FALSE, 
    axes = c(2, 3), legend = TRUE, 
    legend.width = 0.2, 
    legend.nlevels = length(col) + 
        1, main = NULL, 
    rowDelim = NULL, 
    rowDelimCol = "black", 
    colDelim = NULL, 
    colDelimCol = "black", 
    useRaster = NULL)

Arguments

x	a matrix
col	colors
transpose	transpose the matrix?
axes	which axes (sides of the matrix) to annotate? (1=below, 2=left, 3=above and 4=right).
legend	draw legend?
legend.width	the relative width of the legend to the total width of the plot
legend.nlevels	number of levels in the legend (defaults to the number of colors in 'col')
main	main
rowDelim	an optional vector of rows after which to put a separation line
rowDelimCol	the color of the row separation line
colDelim	an optional vector of columns after which to put a separation line
colDelimCol	the color of the column separation line
useRaster	if TRUE, the matrix gets plotted as a raster image, not as rectangles (the latter sometimes leads to antialising artifacts), see image())

Author(s)

Tomas Sieger

Examples

x<-matrix(1:36,6)
rownames(x)<-paste('row',1:6)
colnames(x)<-paste('column',1:6)
x
plotMatrix(x)

# group rows and columns
x<-repmat(matrix(3-c(1,2,1,2,3,2,1,2,1),3),3,3)
plotMatrix(x, rowDelim = c(3,6), colDelim = c(3,6), colDelimCol='red')

tsieger/tsiMisc documentation built on Oct. 10, 2023, 10:24 p.m.