x-y scatterplot, colored by levels of a factor.
Produces a scatter plot of x-y data, with different classes given by a factor f. The different classes are identified by different colours and/or symbols.
plotbyfactor(x, y, f, data, col = 1:10, pch = "O", add = FALSE, lg, xlab = deparse(substitute(x)), ylab = deparse(substitute(y)), log = "", ...)
x |
Variable for x axis. |
y |
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 |
lg |
Coordinates to place a legend. Default: Missing (no legend). |
xlab, ylab |
Axes labels. |
log |
Should the axes be in log scale? Use |
... |
Other graphical parameters, labels, titles e.t.c. |
data(iris) plotbyfactor(petal.wid, petal.len, species, data=iris)
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