r_session_options {callr}

Create options for an r_session object

Description

Create options for an r_session object

Usage

r_session_options(...)

Arguments

...

Options to override, named arguments.

Value

Named list of options.

The current options are:

• libpath: Library path for the subprocess. By default the same as the current library path. I.e. not necessarily the library path of a fresh R session.)

• repos: repos option for the subprocess. By default the current value of the main process.

• stdout: Standard output of the sub-process. This can be NULL or a pipe: "|". If it is a pipe then the output of the subprocess is not included in the responses, but you need to poll and read it manually. This is for experts. Note that this option is not used for the startup phase that currently always runs with stdout = "|".

• stderr: Similar to stdout, but for the standard error. Like stdout, it is not used for the startup phase, which runs with stderr = "|".

• error: See 'Error handling' in r().

• cmdargs: See the same argument of r(). (Its default might be different, though.)

• system_profile: See the same argument of r().

• user_profile: See the same argument of r().

• env: See the same argument of r().

• load_hook: NULL, or code (quoted) to run in the sub-process at start up. (I.e. not for every single run() call.)

• extra: List of extra arguments to pass to processx::process.

Call r_session_options() to see the default values. r_session_options() might contain undocumented entries, you cannot change these.

Examples

r_session_options()