isa2 (version 0.3.4)

isa.option: Options for the isa package

Description

This function can be used to set various options that affect many functions in the isa package.

Usage

isa.option(...)

Arguments

...

A single option query, or option assignments, these must be named, too. See details below.

Value

In the first form, isa.option returns a named list with the current values of all options.In the second form, it returns the value of the specified option.In the third form, it returns a named list with the current values of all options, invisibly.

Details

The isa.option function can be used in three forms. First, calling it without any arguments returns a named list of the current values of all isa options.

Second, calling it with a character scalar as the single argument, it returns the value of the specified option.

Third, calling it with a named argument (or more named arguments) set the specified options to the given values.

Here is a list of all the currently supported options:

verbose

Logical scalar. Whether to report what the isa functions are currently doing. Defaults to FALSE.

status.function

A function object, it serves as a callback for printing status messages.

Examples

## Make isa functions verbose
isa.option(verbose=TRUE)

## Query the value of 'verbose'
isa.option("verbose")

## Query all options
isa.option()