h2o (version 3.2.0.3)

h2o.exportFile: Export an H2O Data Frame to a File

Description

Exports an H2OFrame (which can be either VA or FV) to a file. This file may be on the H2O instace's local filesystem, or to HDFS (preface the path with hdfs://) or to S3N (preface the path with s3n://).

Usage

h2o.exportFile(data, path, force = FALSE)

Arguments

data

An H2OFrame data frame.

path

The path to write the file to. Must include the directory and filename. May be prefaced with hdfs:// or s3n://. Each row of data appears as line of the file.

force

logical, indicates how to deal with files that already exist.

Details

In the case of existing files forse = TRUE will overwrite the file. Otherwise, the operation will fail.

Examples

library(h2o)
localH2O <- h2o.init()
irisPath <- system.file("extdata", "iris.csv", package = "h2o")
iris.hex <- h2o.uploadFile(localH2O, path = irisPath)

# These aren't real paths
# h2o.exportFile(iris.hex, path = "/path/on/h2o/server/filesystem/iris.csv")
# h2o.exportFile(iris.hex, path = "hdfs://path/in/hdfs/iris.csv")
# h2o.exportFile(iris.hex, path = "s3n://path/in/s3/iris.csv")