| grow {randomForest} | R Documentation |
Add additional trees to an existing ensemble of trees.
## S3 method for class 'randomForest': grow(x, how.many, ...)
x |
an object of class randomForest, which contains a
forest component. |
how.many |
number of trees to add to the randomForest
object. |
... |
currently ignored. |
An object of class randomForest, containing how.many
additional trees.
The confusion, err.rate, mse and rsq
components (as well as the corresponding components in the test
compnent, if exist) of the combined object will be NULL.
Andy Liaw andy_liaw@merck.com
data(iris) iris.rf <- randomForest(Species ~ ., iris, ntree=50, norm.votes=FALSE) iris.rf <- grow(iris.rf, 50) print(iris.rf)