FSinR (version 2.0.5)

selectKBest: Select K best

Description

Generates a direct search function that takes the 'k' features with the greatest evaluations (The features evaluation is individual). This function is called internally within the directSearchAlgorithm function.

Usage

selectKBest(k = 1)

Arguments

k

Number (positive integer) of returned features

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 k-best
skb_direct_search <- selectKBest()
# Performs the direct search process directly (parameters: dataset, target variable and evaluator)
skb_direct_search(iris, 'Species', filter_evaluator)
# }