Functionality name, such as the name of a function, method, class, toolbox, or variable, specified as a character vector or string scalar. name also can be an operator symbol (such as +).
If name is a variable, help displays the help text for the class of that variable.
To get help for a method of a class, specify the class name and the method name, separated with a period. For example, to get help for the methodname method of the classname class, type help classname.methodname.
Some classes and other packaged items require that you specify the package name. Events, properties, and some methods require that you specify the class name. Separate the components of the name with periods. For example, to get help for the propertyname property of the classname class, type classname.propertyname. To get help for the classname class in the packagename package, type packagename.methodname. To get help for the methodname method of the classname class in the packagename package, type packagename.classname.methodname.
If name appears in multiple folders on the MATLAB search path, help displays the help text for the first instance of name found on the search path.
If name is overloaded, help displays a link to a list of the methods with the same name.
If name specifies the name or partial path of a folder:
If the folder contains a nonempty
Contents.mfile, thehelpfunction displays the file.Contents.mcontains a list of MATLAB program files in the folder and their descriptions.If the folder contains an empty
Contents.mfile, thehelpfunction displaysnameis a folderIf the folder does not contain a
Contents.mfile, thehelpfunction lists the first line of help text for each program file in the folder.If
nameis the name of both a folder and another item on the MATLAB search path (such as a method, class, toolbox, or variable), thehelpfunction displays the associated text for the item on the search path and a link to display the help text for the folder.
