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ParamHelpers (version 1.1-36)

LearnerParam: Create a description object for a parameter of a machine learning algorithm.

Description

This specializes Param by adding a few more attributes, like a default value, whether it refers to a training or a predict function, etc.

Usage

makeNumericLearnerParam(id, lower = -Inf, upper = Inf,
    default, when = "train", requires = NULL)
  makeNumericVectorLearnerParam(id, len = as.integer(NA),
    lower = -Inf, upper = Inf, default, when = "train",
    requires = NULL)
  makeIntegerLearnerParam(id, lower = -Inf, upper = Inf,
    default, when = "train", requires = NULL)
  makeIntegerVectorLearnerParam(id, len = as.integer(NA),
    lower = -Inf, upper = Inf, default, when = "train",
    requires = NULL)
  makeDiscreteLearnerParam(id, values, default,
    when = "train", requires = NULL)
  makeDiscreteVectorLearnerParam(id, len = as.integer(NA),
    values, default, when = "train", requires = NULL)
  makeLogicalLearnerParam(id, default, when = "train",
    requires = NULL)
  makeLogicalVectorLearnerParam(id, len = as.integer(NA),
    default, when = "train", requires = NULL)
  makeUntypedLearnerParam(id, default, when = "train",
    requires = NULL)
  makeFunctionLearnerParam(id, default, when = "train",
    requires = NULL)

Arguments

id
[character(1)] See Param.
len
[integer(1)] See Param.
lower
[numeric] See Param.
upper
[numeric] See Param.
values
[vector | list] See Param.
requires
[NULL | R expression] See Param.
default
[any] Default value used in learner. If this argument is missing, it means no default value is available.
when
[character(1)] Specifies when parameter is used in the learner: train, predict or both. Default is train.

Value

Details

The S3 class is a Param which additionally stores these elements: [object Object],[object Object],[object Object]