progress_estimated {dplyr} | R Documentation

## Progress bar with estimated time.

### Description

This reference class represents a text progress bar displayed estimated time remaining. When finished, it displays the total duration. The automatic progress bar can be disabled by setting option `dplyr.show_progress` to `FALSE`.

### Usage

    progress_estimated(n, min_time = 0)

### Arguments

`n` | Total number of items
`min_time` | Progress bar will wait until at least `min_time` seconds have elapsed before displaying any results.

### Value

A ref class with methods `tick()`, `print()`, `pause()`, and `stop()`.

### Examples

    p <- progress_estimated(3)
    p$tick()
    p$tick()
    p$tick()

    p <- progress_estimated(3)
    for (i in 1:3) p$pause(0.1)$tick()$print()

    p <- progress_estimated(3)
    p$tick()$print()$
     pause(1)$stop()

    # If min_time is set, progress bar not shown until that many
    # seconds have elapsed
    p <- progress_estimated(3, min_time = 3)
    for (i in 1:3) p$pause(0.1)$tick()$print()

    ## Not run:
    p <- progress_estimated(10, min_time = 3)
    for (i in 1:10) p$pause(0.5)$tick()$print()

    ## End(Not run)

[Package dplyr version 0.7.0 Index]