prepareForSave: Prepares ExtraTrees object for save() function

In extraTrees: Extremely Randomized Trees (ExtraTrees) Method for Classification and Regression

Description

This function prepares ExtraTrees for saving by serializing the trees in Java VM. It is equivalent to calling .jcache(et$jobject). Afterwards the object can be saved by save (or automatic R session saving) and will be fully recovered after load.

Note: the object can still be used as usual after prepareForSave.

Usage

  prepareForSave(object)

Arguments

object

extraTrees (S3) object, created by extraTrees().

Value

Nothing is returned.

Author(s)

Jaak Simm

Examples

  et <- extraTrees(iris[,1:4], iris$Species)
  prepareForSave(et)
  ## saving to a file
  save(et, file="temp.Rdata")

  ## testing: remove et and load it back from file
  rm(list = "et")
  load("temp.Rdata")
  predict(et, iris[,1:4])

Example output

Loading required package: rJava
OpenJDK 64-Bit Server VM warning: Can't detect primordial thread stack location - find_vma failed
  [1] setosa     setosa     setosa     setosa     setosa     setosa    
  [7] setosa     setosa     setosa     setosa     setosa     setosa    
 [13] setosa     setosa     setosa     setosa     setosa     setosa    
 [19] setosa     setosa     setosa     setosa     setosa     setosa    
 [25] setosa     setosa     setosa     setosa     setosa     setosa    
 [31] setosa     setosa     setosa     setosa     setosa     setosa    
 [37] setosa     setosa     setosa     setosa     setosa     setosa    
 [43] setosa     setosa     setosa     setosa     setosa     setosa    
 [49] setosa     setosa     versicolor versicolor versicolor versicolor
 [55] versicolor versicolor versicolor versicolor versicolor versicolor
 [61] versicolor versicolor versicolor versicolor versicolor versicolor
 [67] versicolor versicolor versicolor versicolor versicolor versicolor
 [73] versicolor versicolor versicolor versicolor versicolor versicolor
 [79] versicolor versicolor versicolor versicolor versicolor versicolor
 [85] versicolor versicolor versicolor versicolor versicolor versicolor
 [91] versicolor versicolor versicolor versicolor versicolor versicolor
 [97] versicolor versicolor versicolor versicolor virginica  virginica 
[103] virginica  virginica  virginica  virginica  virginica  virginica 
[109] virginica  virginica  virginica  virginica  virginica  virginica 
[115] virginica  virginica  virginica  virginica  virginica  virginica 
[121] virginica  virginica  virginica  virginica  virginica  virginica 
[127] virginica  virginica  virginica  virginica  virginica  virginica 
[133] virginica  virginica  virginica  virginica  virginica  virginica 
[139] virginica  virginica  virginica  virginica  virginica  virginica 
[145] virginica  virginica  virginica  virginica  virginica  virginica 
Levels: setosa versicolor virginica

extraTrees documentation built on May 2, 2019, 2:31 p.m.