Show progress bar

pb(expr, ...)

Arguments

expr

R expression.

...

Arguments passed on to progressr::with_progress

cleanup: If TRUE, all progression handlers will be shutdown at the end regardless of the progression is complete or not.
delay_terminal: If TRUE, output and conditions that may end up in the terminal will delayed.
delay_stdout: If TRUE, standard output is captured and relayed at the end just before any captured conditions are relayed.
delay_conditions: A character vector specifying base::condition classes to be captured and relayed at the end after any captured standard output is relayed.
interrupts: Controls whether interrupts should be detected or not. If TRUE and a interrupt is signaled, progress handlers are asked to report on the current amount progress when the evaluation was terminated by the interrupt, e.g. when a user pressed Ctrl-C in an interactive session, or a batch process was interrupted because it ran out of time. Note that it's optional for a progress handler to support this and only some do.
interval: (numeric) The minimum time (in seconds) between successive progression updates from handlers.
enable: (logical) If FALSE, then progress is not reported. The default is to report progress in interactive mode but not batch mode. See below for more details.

Return data from the function called.