Weka_attribute_evaluators

0th

Percentile

R/Weka Attribute Evaluators

R interfaces to Weka attribute evaluators.

Keywords
models
Usage
GainRatioAttributeEval(formula, data, subset, na.action, control = NULL)
InfoGainAttributeEval(formula, data, subset, na.action, control = NULL)
Arguments
formula
a symbolic description of a model. Note that for unsupervised filters the response can be omitted.
data
an optional data frame containing the variables in the model.
subset
an optional vector specifying a subset of observations to be used in the fitting process.
na.action
a function which indicates what should happen when the data contain NAs. See model.frame for details.
control
an object of class Weka_control, or a character vector of control options, or NULL (default). Available options can be obtained on-line using the Weka Option Wizard
Details

GainRatioAttributeEval evaluates the worth of an attribute by measuring the gain ratio with respect to the class.

InfoGainAttributeEval evaluates the worth of an attribute by measuring the information gain with respect to the class.

Value

  • A numeric vector with the figures of merit for the attributes specified by the right hand side of formula.

Aliases
  • InfoGainAttributeEval
  • GainRatioAttributeEval
Examples
InfoGainAttributeEval(Species ~ . , data = iris)
Documentation reproduced from package RWeka, version 0.4-18, License: GPL-2

Community examples

Looks like there are no examples yet.