daltoolboxdp (version 1.2.737)

fs_relief: Relief

Description

Relief ranks features by how well they differentiate between instances of different classes in local neighborhoods. Wraps FSelector's Relief.

Usage

fs_relief(attribute)

Value

A fs_relief object.

Arguments

attribute

Character. Name of the (categorical) target variable.

References

Kira, K., & Rendell, L. A. (1992). The Feature Selection Problem: Traditional Methods and a New Algorithm. Kononenko, I. (1994). Estimating attributes: analysis and extensions of Relief.

Examples

if (FALSE) {
data(iris)

# 1) Relief expects a categorical target
iris2 <- iris
iris2$Species <- as.factor(iris2$Species)

# 2) Fit Relief and check which features were kept
fs <- daltoolbox::fit(fs_relief("Species"), iris2)
fs$features

# 3) Transform data to only selected features + target
data_relief <- daltoolbox::transform(fs, iris2)
head(data_relief)
}