shape (version 1.1)

colorlegend: 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 right (TRUE) or on the left (FALSE)

...

arguments passed to R-function "text" when writing labels

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")