What is the getOption() function in R?

Overview

The getOption() function in R allows a user to set and examine a range of global options that affect the way R computes and displays its results.

Syntax

options(…)
getOption(x, default = NULL)
.Options

Parameter values

The getOption() function takes the following parameter values:

  • ...: This represents any options that can be defined using name = value. It can be passed by giving a single unnamed argument which is a named list.

Below, we have a list of some options that are used in base R:

Options result
add.smooth TRUE
check.bounds FALSE
continue “+”
digits 7
echo TRUE
encoding “native.enc”
expressions 5000
  • x: This represents a character string that holds the option name.
  • default: This is returned if the specified option is not set in the options list.

Example

# Implementing the getOption() function
getOption("add.smooth")
getOption("check.bounds")
getOption("continue")
getOption("digits")
getOption("echo")
getOption("encoding")
getOption("error")

Explanation

In the code above, we use the getOption() function to examine certain global options that affect the way R works.

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