scree.plot {TWIX} | R Documentation |
Scree-plot
Description
A scree plot shows the sorted maximum decrease in impurity for each variable's value.
Usage
scree.plot(formula, data = NULL, bars = TRUE, col = "grey",
type = "b", pch = 16, ylim = c(0, 1), ...)
Arguments
formula |
formula of the form y ~ x1 + x2 + ... ,
where y must be a factor and x1,x2,... are numeric or factor. |
data |
an optional data frame containing the variables in the model. |
bars |
the type of plot: barplot or lines. |
col |
the colors for lines or Bar's. |
type |
the color for points. |
pch |
see par(pch =...) . |
ylim |
the y limits of the plot. |
... |
other parameters to be passed through to plotting functions. |
See Also
plot.TWIX
, TWIX
Examples
data(olives)
scree.plot(Region~.,data=olives,bars=FALSE,col=2)
scree.plot(Region~.,data=olives,bars=TRUE)
[Package
TWIX version 0.2.6
Index]