Plot method for randomForest objects

Plot the error rates or MSE of a randomForest object

# S3 method for class 'randomForest'
plot(x, type="l", main=deparse(substitute(x)), ...)

Arguments

x

an object of class randomForest.

type

type of plot.

main

main title of the plot.

...

other graphical parameters.

Value

Invisibly, the error rates or MSE of the randomForest object. If the object has a non-null test component, then the returned object is a matrix where the first column is the out-of-bag estimate of error, and the second column is for the test set.

Note

This function does not work for randomForest objects that have type=unsupervised.

If the x has a non-null test component, then the test set errors are also plotted.

See also

randomForest

Author

Andy Liaw

Examples

data(mtcars)
plot(randomForest(mpg ~ ., mtcars, keep.forest=FALSE, ntree=100), log="y")