Combine Ensembles of Trees

Combine two more more ensembles of trees into one.

combine(...)

Arguments

...	two or more objects of class randomForest, to be combined into one.

Value

An object of class randomForest.

Note

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.

See also

randomForest, grow

Examples

data(iris)
rf1 <- randomForest(Species ~ ., iris, ntree=50, norm.votes=FALSE)
rf2 <- randomForest(Species ~ ., iris, ntree=50, norm.votes=FALSE)
rf3 <- randomForest(Species ~ ., iris, ntree=50, norm.votes=FALSE)
rf.all <- combine(rf1, rf2, rf3)
print(rf.all)
#> 
#> Call:
#>  randomForest(formula = Species ~ ., data = iris, ntree = 50,      norm.votes = FALSE) 
#>                Type of random forest: classification
#>                      Number of trees: 150
#> No. of variables tried at each split: 2
#>