R: showLegend

showLegend {heatmap3} | R Documentation

## showLegend

### Description

The function showLegend is an example for generating legend in the figure of heatmap3 function. You can use your any plot functions to generate your own legend.

### Usage

    showLegend(legend = c("Group A", "Group B"), lwd = 3, cex = 1.1,
      col = c("red", "blue"), ...)

### Arguments

`legend` | a character or expression vector of length ≥ 1 to appear in the legend. Other objects will be coerced by `as.graphicsAnnot`.
`lwd` | the line widths for lines appearing in the legend.
`cex` | character expansion factor relative to current `par("cex")`. Used for text, and provides the default for `pt.cex` and `title.cex`.
`col` | the color of points or lines appearing in the legend.
`...` | additional arguments passed on to `legend`

### Examples

    RowSideColors<-rep("steelblue2",nrow(mtcars))
    RowSideColors[c(4:6,15:17,22:26,29)]<-"lightgoldenrod"
    RowSideColors[c(1:3,19:21)]<-"brown1"
    heatmap3(mtcars,scale="col",margins=c(2,10),RowSideColors=RowSideColors,legendfun=function()
    showLegend(legend=c("European","American","Japanese"),col=c("steelblue2","lightgoldenrod",
    "brown1"),cex=1.5))

[Package heatmap3 version 1.1.1 Index]