progressBarHook: Standard progress bar hook.

In RMassBank: Workflow to process tandem MS files and build MassBank records

Description

This function provides a standard implementation for the progress bar in RMassBank.

Usage

progressBarHook(object = NULL, value = 0, min = 0, max = 100, close = FALSE)

Arguments

object	An identifier representing an instance of a progress bar.
value	The new value to assign to the progress indicator
min	The minimal value of the progress indicator
max	The maximal value of the progress indicator
close	If TRUE, the progress bar is closed.

Details

RMassBank calls the progress bar function in the following three ways: pb <- progressBarHook(object=NULL, value=0, min=0, max=LEN) to create a new progress bar. pb <- progressBarHook(object=pb, value= VAL) to set the progress bar to a new value (between the set min and max) progressBarHook(object=pb, close=TRUE) to close the progress bar. (The actual calls are performed with do.call, e.g. progressbar <- "progressBarHook" pb <- do.call(progressbar, list(object=pb, value= nProg)) . See the source code for details.)

To substitute the standard progress bar for an alternative implementation (e.g. for use in a GUI), the developer can write his own function which behaves in the same way as progressBarHook, i.e. takes the same parameters and can be called in the same way.

Value

Returns a progress bar instance identifier (i.e. an identifier which can be used as object in subsequent calls.)

Author(s)

Michele Stravs, Eawag <[e-mail]>

RMassBank documentation built on Nov. 8, 2020, 6:06 p.m.