ispref

Determine if custom preference exists

Syntax

参照ispref(集团)

ispref(group)

Description

ispref(group,pref)returns1if the specified preference in the specified group exists, and0otherwise. Ifprefspecifies multiple preferences,isprefreturns a logical array containing a1or0for each specified preference.

ispref(group)returns1if the specified group exists, and0otherwise.

Examples

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Check If Preference Exists

Add a preference calledversionto themytoolbox群preferences and then check if the preference exists.

addpref('mytoolbox','version','1.0') ispref('mytoolbox','version')

ans = logical 1

Check If Multiple Preferences Exist

Add two preferences to themytoolbox群preferences and then check if the preferences exist.

addpref('mytoolbox',{'modifieddate','docpath'},{'1/9/2019','C:\mytoolbox\documentation'}) ispref('mytoolbox',{'modifieddate','docpath','hasdoc'})

ans = 1×3 logical array 1 1 0

MATLAB^®returns a logical array containing a1for themodifieddatepreference and a1for thedocpathpreference. Thehasdocpreference does not exist and therefore the last value of the logical array is0.

Input Arguments

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`group`—Custom preference group name
character vector|string scalar

Custom preference group name, specified as a character vector or a string scalar.

Example:'mytoolbox'

Data Types:char|string

`pref`—Custom preference name
character vector|cell array of character vectors|string array

Custom preference name, specified as a character vector, a cell array of character vectors, or a string array.

Example:'version'

Example:{'version','modifieddate','docpath'}

Data Types:char|string

Version History

Introduced before R2006a