{"name":"grow","title":"Add trees to an ensemble","pagetitle":"Add trees to an ensemble — grow","aliases":["grow","grow.default","grow.randomForest"],"author":"Andy Liaw andy\\_liaw@merck.com","keywords":["regression","classif"],"description":"

Add additional trees to an existing ensemble of trees.

","usage":"# S3 method for randomForest\ngrow(x, how.many, ...)","arguments":[{"name":"x","description":"

an object of class randomForest, which contains a\n forest component.

"},{"name":"how.many","description":"

number of trees to add to the randomForest\n object.

"},{"name":"...","description":"

currently ignored.

"}],"has_args":true,"examples":"# NOT RUN {\ndata(iris)\niris.rf <- randomForest(Species ~ ., iris, ntree=50, norm.votes=FALSE)\niris.rf <- grow(iris.rf, 50)\nprint(iris.rf)\n# }\n","sections":[],"value":"

An object of class randomForest, containing how.many\nadditional trees.

","note":"

The confusion, err.rate, mse and rsq\ncomponents (as well as the corresponding components in the test\ncompnent, if exist) of the combined object will be NULL.

","seealso":"

combine, randomForest

","package":{"package":"randomForest","version":"4.6-14"}}

Description

Usage

Arguments

Value

See Also

Examples