colorlegend {shape}R Documentation

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

Author(s)

Karline Soetaert <k.soetaert@nioo.knaw.nl>

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")

[Package shape version 1.2.1 Index]