colorlegend: adds a color legend to a plot.

In shape: Functions for Plotting Graphical Shapes, Colors

adds a color legend to a plot.

Description

Adds a color legend to a plot.

Usage

colorlegend(col = femmecol(100), zlim, zlevels = 5, dz = NULL,
            zval = NULL, log = FALSE, posx = c(0.9, 0.93), 
            posy = c(0.05, 0.9), main = NULL, main.cex = 1.0, 
            main.col = "black", lab.col = "black", 
            digit = 0, left = FALSE, ...)

Arguments

col	color palette to be used; also allowed are two extremes or one value.
zlim	two-valued vector, the minimum and maximum z values.
zlevels	number of z-levels, one value, ignored if dz or zval not equal to NULL.
dz	increment in legend values, one value; ignored if zval not equal to NULL.
zval	a vector of z-values to label legend.
log	logical indicating whether to log transform or not.
posx	relative position of left and right edge of color bar on first axis, [0,1].
posy	relative position on lower and upper edge of colar bar on second axis, [0,1].
main	main title, written above the color bar.
main.cex	relative size of main title.
main.col	color of main title.
lab.col	color of labels.
digit	number of significant digits in labels.
left	logical indicating whether to put the labels on the right (TRUE) or on the left (FALSE).
...	arguments passed to R-function text when writing labels.

Author(s)

Karline Soetaert <[e-mail]>

Examples

emptyplot(main = "colorlegend")
colorlegend(zlim = c(0, 10))
colorlegend(posx = c(0.8, 0.83), col = greycol(100), 
            zlim = c(0, 1), digit = 1)
colorlegend(posx = c(0.7, 0.73), left = TRUE, col = rainbow(100), 
            zlim = c(0, 10), digit = 1, dz = 2.5)
colorlegend(posx = c(0.5, 0.53), 
            col = intpalette(c("red", "yellow", "black"), 100), 
            zlim = c(0, 20), zval = c(1, 3, 7, 15))
colorlegend(posy = c(0.0, 0.15), posx = c(0.2, 0.3), 
            col = rainbow(100), zlim = c(0, 1), 
            zlevels = NULL, main = "rainbow")
colorlegend(posy = c(0.25, 0.4), posx = c(0.2, 0.3), 
            zlim = c(0, 1), zlevels = NULL, main = "femmecol")
colorlegend(posy = c(0.5, 0.65), posx = c(0.2, 0.3), 
            col = terrain.colors(100), zlim = c(0, 1), 
            zlevels = NULL, main = "terrain.colors")
colorlegend(posy = c(0.75, 0.9), posx = c(0.2, 0.3), 
            col = heat.colors(100), zlim = c(0, 1), 
            zlevels = NULL, main = "heat.colors")

shape documentation built on May 29, 2024, 5:07 a.m.