R: Options for the isa package

isa.option {isa2} | R Documentation

## 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.

### 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.

### 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.

### Author(s)

Gabor Csardi Gabor.Csardi@unil.ch

### Examples

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

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

    ## Query all options
    isa.option()

[Package isa2 version 0.3.5 Index]