h2o (version 3.8.1.3)

h2o.performance: Model Performance Metrics in H2O

Description

Given a trained h2o model, compute its performance on the given dataset

Usage

h2o.performance(model, newdata = NULL, train = FALSE, valid = FALSE,
  xval = FALSE, data = NULL)

Arguments

model

An H2OModel object

newdata

An H2OFrame. The model will make predictions on this dataset, and subsequently score them. The dataset should match the dataset that was used to train the model, in terms of column names, types, and dimensions. If newdata is passed in, then train, valid,

train

A logical value indicating whether to return the training metrics (constructed during training).

valid

A logical value indicating whether to return the validation metrics (constructed during training).

xval

A logical value indicating whether to return the cross-validation metrics (constructed during training).

data

(DEPRECATED) An H2OFrame. This argument is now called `newdata`.

Value

• Returns an object of the H2OModelMetrics subclass.

Examples

library(h2o)
h2o.init()
prosPath <- system.file("extdata", "prostate.csv", package="h2o")
prostate.hex <- h2o.uploadFile(path = prosPath)
prostate.hex$CAPSULE <- as.factor(prostate.hex$CAPSULE)
prostate.gbm <- h2o.gbm(3:9, "CAPSULE", prostate.hex)
h2o.performance(model = prostate.gbm, newdata=prostate.hex)