score {auditor}

Model Scores computations

Description

This function provides several scores for model validation and performance assessment. Scores can be also used to compare models.

Usage

score(object, type = "mse", data = NULL, ...)

Arguments

object

An object of class explainer created with function explain from the DALEX package.

type

The score to be calculated. Possible values: acc, auc, cookdistance, dw, f1, gini, halfnormal, mae, mse, peak, precision, r2, rec, recall, rmse, rroc, runs, specificity, one_minus_acc, one_minus_auc, one_minus_f1, one_minus_gini, one_minus_precision, one_minus_recall, one_minus_specificity (for detailed description see functions in see also section).

data

New data that will be used to calculate the score. Pass NULL if you want to use data from object.

...

Other arguments dependent on the type of score.

Value

An object of class auditor_score, except Cooks distance, where numeric vector is returned.

See Also

score_acc, score_auc, score_cooksdistance, score_dw, score_f1, score_gini score_halfnormal, score_mae, score_mse, score_peak, score_precision, score_r2, score_rec, score_recall, score_rmse, score_rroc, score_runs, score_specificity, score_one_minus_acc, score_one_minus_auc, score_one_minus_f1, score_one_minus_gini, score_one_minus_precision, score_one_minus_recall, score_one_minus_specificity

Examples

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

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

lm_audit <- audit(model_lm, data = dragons, y = dragons$life_length)

# calculate score
score(lm_audit, type = 'mae')