dplyrxdf_options: Get or set dplyrXdf options

In RevolutionAnalytics/dplyrXdf: Tools for working with Microsoft R Server Xdf files and the dplyr package

Description

Get or set dplyrXdf options

Usage

dplyrxdf_options(...)

Arguments

...	Options to define, using name = value. Valid options are listed under "Details" below.

Details

Use this function to get or set various options that control dplyrXdf's functionality.

• localWorkDir: working directory to store xdf tbl files. It is recommended to use get_dplyrxdf_dir and set_dplyrxdf_dir for getting and setting this option.

• hdfsWorkDir: working directory to store xdf tbl files in HDFS.

• hdfsHost: HDFS hostname.

• hdfsWorkDirCreated: whether the HDFS working directory

• dplyrVersion: version of dplyr installed.

• rowsPerRead: default number of rows per chunk when writing xdf files.

• useExecBy: whether to do by-group processing in parallel with rxExecBy, which is a feature available in Microsoft R Server 9.1 and later. Defaults to FALSE. This is experimental; if you use it, please report any bugs you encounter.

Note that not all the above options can be changed by the user: specifically, the hdfsWorkDirCreated and dplyrVersion options are read-only. Setting the dplyrXdf working directory should also be done with set_dplyrxdf_dir.

Value

Returns a list of the option values before any changes are carried out.

See Also

options

RevolutionAnalytics/dplyrXdf documentation built on June 3, 2019, 9:08 p.m.