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 the 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 1.2.2 Index]