Function reference • callr

Introduction

callr callr-package: Call R from R

Run R

r() r_safe(): Evaluate an expression in another R session

r_copycat(): Run an R process that mimics the current R process

r_vanilla(): Run an R child process, with no configuration

Run R in the background

r_bg(): Evaluate an expression in another R session, in the background

r_process: External R Process

r_process_options(): Create options for an r_process object

Persistent background R session

r_session: External R Session

r_session_options(): Create options for an r_session object

r_session_debug: Interactive debugging of persistent R sessions

Run R CMD

rcmd() rcmd_safe(): Run an R CMD command

rcmd_copycat(): Call and R CMD command, while mimicking the current R session

rcmd_safe_env(): rcmd_safe_env returns a set of environment variables that are more appropriate for rcmd_safe(). It is exported to allow manipulating these variables (e.g. add an extra one), before passing them to the rcmd() functions.

Run R CMD in the background

rcmd_bg(): Run an R CMD command in the background

rcmd_process: External R CMD Process

rcmd_process_options(): Create options for an rcmd_process object

Run Rscript

rscript(): Run an R script

Run Rscript in the background

rscript_process: External Rscript process

rscript_process_options(): Create options for an rscript_process object

Miscellaneous utilities

default_repos(): Default value for the repos option in callr subprocesses

supported_archs(): Find supported sub-architectures for the current R installation

add_hook(): Add a user hook to be executed before launching an R subprocess

Re-exported functions

reexports run process poll: Objects exported from other packages