Extract unique values in the column.
h2o.unique(x, include_nas = FALSE)Returns an H2OFrame object.
if (FALSE) { # \dontrun{
library(h2o)
h2o.init()
f <- "https://h2o-public-test-data.s3.amazonaws.com/smalldata/iris/iris_wheader.csv"
iris <- h2o.importFile(f)
h2o.unique(iris["class"])
} # }