h2o.insertMissingValues {h2o}

Insert Missing Values into an H2OFrame

Description

Randomly replaces a user-specified fraction of entries in an H2O dataset with missing values.

Usage

h2o.insertMissingValues(data, fraction = 0.1, seed = -1)

Arguments

data

An H2OFrame object representing the dataset.

fraction

A number between 0 and 1 indicating the fraction of entries to replace with missing.

seed

A random number used to select which entries to replace with missing values. Default of seed = -1 will automatically generate a seed in H2O.

Value

Returns an H2OFrame object.

WARNING

This will modify the original dataset. Unless this is intended, this function should only be called on a subset of the original.

Examples

## Not run: 
library(h2o)
h2o.init()

iris_hf <- as.h2o(iris)
summary(iris_hf)

iris_miss <- h2o.insertMissingValues(iris_hf, fraction = 0.25)
head(iris_miss)
summary(iris_miss)

## End(Not run)