score_r2: R-squared

In auditor: Model Audit - Verification, Validation, and Error Analysis

R-squared

Description

The R2 is the coefficient of determination, An R2 coefficient equals 0 means that model explains none of the variability of the response. An R2 coefficient equals 1 means that model explains all the variability of the response.

Usage

score_r2(object, data = NULL, y = NULL, ...)

Arguments

object	An object of class explainer created with function explain from the DALEX package.
data	New data that will be used to calculate the score. Pass NULL if you want to use data from object.
y	New y parameter will be used to calculate score.
...	Other arguments dependent on the type of score.

Value

An object of class auditor_score.

See Also

score

Examples

dragons <- DALEX::dragons[1:100, ]

# fit a model
model_lm <- lm(life_length ~ ., data = dragons)

# use DALEX package to wrap up a model into explainer
lm_audit <- audit(model_lm, data = dragons, y = dragons$life_length)

# calculate score with auditor
score_r2(lm_audit)

auditor documentation built on Nov. 2, 2023, 6:13 p.m.