mobforest.control

0th

Percentile

Control parameters for random forest

Various parameters that control the forest growing.

Usage
mobforest.control(ntree = 300, mtry = 0, replace = FALSE,
  fraction = 0.632, alpha = 1, bonferroni = FALSE, minsplit = 20,
  trim = 0.1, objfun = deviance, breakties = FALSE, parm = NULL,
  verbose = FALSE)
Arguments
ntree

Number of trees to be constructed in forest (default = 300).

mtry

Number of input variables randomly sampled as candidates at each node.

replace

logical. replace = TRUE (default) performs bootstrapping. replace = FALSE performs sampling without replacement.

fraction

Number of observations to draw without replacement (only relevant if replace = FALSE).

alpha

A node is considered for splitting if the p value for any partitioning variable in that node falls below alpha (default 0.05). Please see mob_control().

bonferroni

logical. Should p values be Bonferroni corrected? (default TRUE). Please see mob_control().

minsplit

An integer. The minimum number of observations in a node (default 20). Please see mob_control().

trim

A numeric, as defined in mob_control().

objfun

A function, as defined in mob_control().

breakties

A logical, as defined in mob_control().

parm

A numeric or vector, as defined in mob_control().

verbose

A logical, as defined in mob_control().

Details

This function is used to set up forest controls. The mob_control (from party 'package') object is used to set up control parameters for single tree model. For most parameters, please see: mob_control()

Value

An object of class '>mobforest.control.

References

Achim Zeileis, Torsten Hothorn, and Kurt Hornik (2008). Model-Based Recursive Partitioning. Journal of Computational and Graphical Statistics, 17(2), 492-514.

Aliases
  • mobforest.control
Examples
# NOT RUN {
# create forest controls before starting random forest analysis
mobforest_control = mobforest.control(ntree = 400, mtry = 4, replace = TRUE,
    minsplit = 200)

# }
Documentation reproduced from package mobForest, version 1.3.1, License: GPL (>= 2)

Community examples

Looks like there are no examples yet.