handler_rstudio {progressr}

Progression Handler: Progress Reported in the RStudio Console

Description

Progression Handler: Progress Reported in the RStudio Console

Usage

handler_rstudio(
  intrusiveness = getOption("progressr.intrusiveness.gui", 1),
  target = "gui",
  title = function() format(Sys.time(), "Console %X"),
  ...
)

Arguments

intrusiveness

(numeric) A non-negative scalar on how intrusive (disruptive) the reporter to the user.

target

(character vector) Specifies where progression updates are rendered.

title

(character or a function) The "name" of the progressor, which is displayed in front of the progress bar. If a function, then the name is created dynamically by calling the function when the progressor is created.

...

Additional arguments passed to make_progression_handler().

Requirements

This progression handler works only in the RStudio Console.

Use this progression handler by default

To use this handler by default whenever using the RStudio Console, add the following to your ‘~/.Rprofile’ startup file:

if (requireNamespace("progressr", quietly = TRUE)) {
  if (Sys.getenv("RSTUDIO") == "1" && !nzchar(Sys.getenv("RSTUDIO_TERM"))) {
    options(progressr.handlers = progressr::handler_rstudio)
  }
}

Examples

if (requireNamespace("rstudioapi", quietly = TRUE) && rstudioapi::isAvailable()) {

  handlers("rstudio")
  with_progress({ y <- slow_sum(1:10) })
  print(y)
  
}