FSinR (version 2.0.5)

selectThresholdRange: Select threshold range

Description

Generates a direct search function that selects the features whose evaluation is over a threshold, where this threshold is given as: (((min - max) * p.threshold) + max)(The features evaluation is individual). This function is called internally within the directSearchAlgorithm function.

Usage

selectThresholdRange(p.threshold = 0.8)

Arguments

p.threshold

• Number between 0 and 1

Value

Returns a direct search function that is used in the feature selection process.

Examples

# NOT RUN {
## The direct application of this function is an advanced use that consists of using this 
# function directly and performing a direct search process
## Classification problem


# Generates the filter evaluation function
filter_evaluator <- filterEvaluator('determinationCoefficient')

# Generates the direct search function with threshold range
str_direct_search <- selectThresholdRange()
# Performs the direct search process directly (parameters: dataset, target variable and evaluator)
str_direct_search(iris, 'Species', filter_evaluator)
# }