h2o (version 3.28.0.4)

h2o.get_leaderboard: Retrieve the leaderboard from the AutoML instance.

Description

Contrary to the default leaderboard attached to the automl instance, this one can return columns other than the metrics.

Usage

h2o.get_leaderboard(object, extra_columns = NULL)

Arguments

object

The object for which to return the leaderboard. Currently, only H2OAutoML instances are supported.

extra_columns

A string or a list of string specifying which optional columns should be added to the leaderboard. Defaults to None. Currently supported extensions are:

• 'ALL': adds all columns below.

• 'training_time_ms': column providing the training time of each model in milliseconds (doesn't include the training of cross validation models).

• 'predict_time_per_row_ms': column providing the average prediction time by the model for a single row.

Value

An H2OFrame representing the leaderboard.

Examples

# NOT RUN {
library(h2o)
h2o.init()
votes_path <- system.file("extdata", "housevotes.csv", package = "h2o")
votes_hf <- h2o.uploadFile(path = votes_path, header = TRUE)
aml <- h2o.automl(y = "Class", project_name="aml_housevotes",
                  training_frame = votes_hf, max_runtime_secs = 30)
lb_all <- h2o.get_leaderboard(aml, 'ALL')
lb_custom <- h2o.get_leaderboard(aml, c('predict_time_per_row_ms', 'training_time_ms'))
# }