tisPlot and
scatterPlot leave an object named latestPlot in the
frame from which they were called. tisLegend uses that object
to set legend arguments (which you can override) and sets reasonable
defaults for other arguments.tisLegend(..., xrel = 0.1, yrel = 0.1, xjust = 0, yjust = 1, boxType = "n", ncol = 1, cex = 1)legend.
These can include x and y arguments to position the
legend, or a list with components named x and y, such alegendbty to legendcex from latestPlot
and then passed on to legendlegend, with
class "tisLegend"legend directly. tisLegend makes things a
bit easier, however, by using the same argument names as
tisPlot and scatterPlot to specify color,
lineType, plotChar and boxType, rather than the
less intuitive col, lty, pch and bty
names. The xrel and yrel arguments provide an
alternative way to specify legend placement, one that is used by the
ChartMaker program.legend, tisPlot, scatterPlot