Dotchart of variable importance as measured by a Random Forest
varImpPlot(x, sort=TRUE, n.var=min(30, nrow(x$importance)),
type=NULL, class=NULL, scale=TRUE,
main=deparse(substitute(x)), ...)
An object of class RRF
.
Should the variables be sorted in decreasing order of importance?
How many variables to show? (Ignored if
sort=FALSE
.)
arguments to be passed on to
importance
plot title.
Other graphical parameters to be passed on to
dotchart
.
Invisibly, the importance of the variables that were plotted.
# NOT RUN { set.seed(4543) data(mtcars) mtcars.rf <- RRF(mpg ~ ., data=mtcars, ntree=1000, keep.forest=FALSE, importance=TRUE) varImpPlot(mtcars.rf) # }