Options

Options[symbol] or Options["symbol"]

gives the list of default options assigned to a symbol.

Options[expr]

gives the options explicitly specified in a particular expression such as a graphics object.

Options[stream]

gives options associated with a particular stream.

Options[object]

gives options associated with an external object such as an NotebookObject or CloudObject.

Options[obj,name]

gives the setting for the option name.

Options[obj,{name1,name2,…}]

gives a list of the settings for the options namei.

Details

  • Many built‐in functions allow you to give additional arguments that specify options with rules of the form name->value.
  • Options[f] gives the list of rules to be used for the options associated with a function f if no explicit rules are given when the function is called.
  • Options always returns a list of transformation rules for option names.
  • You can assign a value to Options[symbol] to redefine all the default option settings for a function.
  • SetOptions[symbol,name->value] can be used to specify individual default options.
  • Values defined for Options[f] are stored with values of Default[f,…] in DefaultValues[f].
  • Options["symbol"] will return an empty list if there is no corresponding symbol.
  • You can use Options on InputStream and OutputStream objects. For the two streams "stdout" and "stderr", you can use the short forms Options["stdout"] and Options["stderr"], respectively.
  • If obj is a user interface object such as $FrontEnd, NotebookObject or CellObject, the kernel will send a request to the front end to find the result.
  • Explicit values are found for options associated with cells, even if these options are only set at the style, notebook, or global level.

Examples

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Basic Examples  (3)

Get the list of options for the LinearSolve function:

Define the default options of f:

Define f to use the options:

Get the list of options for a CloudObject:

Scope  (1)

Retrieve the Permissions option of a cloud object:

Wolfram Research (1988), Options, Wolfram Language function, https://reference.wolfram.com/language/ref/Options.html (updated 2024).

Text

Wolfram Research (1988), Options, Wolfram Language function, https://reference.wolfram.com/language/ref/Options.html (updated 2024).

CMS

Wolfram Language. 1988. "Options." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2024. https://reference.wolfram.com/language/ref/Options.html.

APA

Wolfram Language. (1988). Options. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/Options.html

BibTeX

@misc{reference.wolfram_2024_options, author="Wolfram Research", title="{Options}", year="2024", howpublished="\url{https://reference.wolfram.com/language/ref/Options.html}", note=[Accessed: 22-November-2024 ]}

BibLaTeX

@online{reference.wolfram_2024_options, organization={Wolfram Research}, title={Options}, year={2024}, url={https://reference.wolfram.com/language/ref/Options.html}, note=[Accessed: 22-November-2024 ]}