Convert H2O Data to Factors

Convert column/columns in the current frame to categoricals.

as.factor(x)

Arguments

x	a column from an H2OFrame data set.

See also

as.factor.

Examples

if (FALSE) {
library(h2o)
h2o.init()

# Single column
cars <- "https://s3.amazonaws.com/h2o-public-test-data/smalldata/junit/cars_20mpg.csv"
df <- h2o.importFile(cars)
df["cylinders"] <- as.factor(df["cylinders"])
h2o.describe(df["cylinders"])

# Multiple columns
cars <- "https://s3.amazonaws.com/h2o-public-test-data/smalldata/junit/cars_20mpg.csv"
df <- h2o.importFile(cars)
df[c("cylinders","economy_20mpg")] <- as.factor(df[c("cylinders","economy_20mpg")])
h2o.describe(df[c("cylinders","economy_20mpg")])
}