Retrieves the GINI coefficient from an H2OBinomialMetrics. If "train", "valid", and "xval" parameters are FALSE (default), then the training GINIvalue is returned. If more than one parameter is set to TRUE, then a named vector of GINIs are returned, where the names are "train", "valid" or "xval".
Arguments
- object
an H2OBinomialMetrics object.
- train
Retrieve the training GINI Coefficcient
- valid
Retrieve the validation GINI Coefficcient
- xval
Retrieve the cross-validation GINI Coefficcient
See also
h2o.auc for AUC, h2o.giniCoef for the
GINI coefficient, and h2o.metric for the various
threshold metrics. See h2o.performance for creating
H2OModelMetrics objects.
Examples
if (FALSE) { # \dontrun{
library(h2o)
h2o.init()
prostate_path <- system.file("extdata", "prostate.csv", package = "h2o")
prostate <- h2o.uploadFile(prostate_path)
prostate[, 2] <- as.factor(prostate[, 2])
model <- h2o.gbm(x = 3:9, y = 2, training_frame = prostate, distribution = "bernoulli")
perf <- h2o.performance(model, prostate)
h2o.giniCoef(perf)
} # }