x-y scatterplot, colored by levels of a factor.
Usage
plotbyfactor(x, y, f, data, col, pch, add, lg, ...)
Arguments
x
|
Variable for x axis.
|
x
|
Variable for y axis.
|
f
|
Factor (or variable for which as.factor() works).
|
data
|
data frame for variables x, y, f. Default: sys.parent().
|
col
|
Color numbers to use in plot. Will be replicated if shorter than the
number of levels of the factor f. Default: 1:10.
|
pch
|
Vector of plot characters. Replicated if necessary.
Default: "O".
|
add
|
If TRUE, add to existing plot. Otherwise, create new plot.
Default: FALSE.
|
lg
|
Coordinates to place a legend. Default: Missing (no legend).
|
...
|
Other graphical parameters, labels, titles e.t.c.
|
Examples
> plotbyfactor(petal.wid,petal.len,species,data=iris)