Matlab what kind of variable

Changes you make in the Variables editor are automatically saved in the workspace. Changes you make to variables via the Command Window or other operations automatically update the information for those variables in the Workspace browser and Variables editor.

When editing strings in the Workspace browser or as part of a structure in the Variables editor, you must use double quotes to surround the string value. The contents of a table are only visible and modifiable when the number of variables is fewer than When the number of variables equals or exceeds , you can only view the table properties. Changes made to certain variable types in the Variables editor also appear in the Command Window.

For example, suppose you have a table T that contains three columns, A , B , and C. To modify the size, shape, and order of variable elements in the Variable editor, use one of these procedures. You can copy and paste, duplicate, rename, and delete variables within the Workspace browser. On the Home tab, in the Variable section, click Clear Workspace. You also can use the clear function in the Command Window. Select the variables in the Workspace browser, right-click, and then select Delete.

You can also use the clear function in the Command Window. For example, to clear variables A and B , use the command clear A B. To preserve specified variables, but delete others, use the clearvars function with the -except option.

For example, to clear all variables except variable A, use the command clearvars -except A. To create a new workspace variable from an existing variable, in the Variables editor, select an element, data range, row, or column in an array, and then in the Variable tab, select New from Selection.

You can change the character that delimits decimals in the data when you cut and paste values from the Variables editor into text files or other applications. You might do this, for instance, if you provide data to a locale that uses a character other than the period.

To change the delimiter character, specify a Decimal separator for exporting numeric data via system clipboard in the Variables Preferences. When editing variables in the Variables editor, some variables can contain large amounts of data, making it difficult to navigate between elements. Use these keyboard shortcuts to move easily between variable elements in the Variables editor.

You cannot modify these keyboard shortcuts. Variables Preferences enable you to specify what the next element is. The default is to move down. Within a selection, Tab also moves from the last column in one row to the first column in the next row. Move in opposite direction of Enter or Tab. Move up m rows, where m is the number of visible rows. Move down m rows, where m is the number of visible rows. Asked 12 years, 8 months ago. Active 7 months ago. Viewed k times. Peter Mortensen 29k 21 21 gold badges 97 97 silver badges bronze badges.

Add a comment. Active Oldest Votes. Do note that you can overload the class method in a custom class to return any random string. Dima Dima Do note that in a custom class you can overload all of these methods to return anything you want. The WHO function does not list the size of variables. Because of that it is much faster if your workspace is crowded.

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Main Content. Syntax whos. Note You must use the functional form of whos when there is an output argument. Examples collapse all Display Workspace Variable Information. Open Live Script. Name Size Bytes Class Attributes X x double caption 2x28 char map x3 double.

Store Variable Information in a Structure Array. Bill Tubbs on 20 Feb I have the same problem. Error using class. Steven Lord on 21 Feb I'm guessing theFiles is a non-scalar struct array, which would mean that theFiles. This makes MATLAB think you're using a different syntax for the class function, one associated with the older style of classes. See the "Obsolete Class Definition Syntax" section on the class documentation page.

You could try:. Mahalakshmi Sivakumar on 3 Mar Steven Lord on 3 Mar I don't understand your question. Could you explain what you mean by "it throws a char" and "i want parameter" in a little more detail?

I think I undesrstod the question because I have a similar problem. Please check this example:. Check is supposed to retrieve programatically the classes of the variables in the workspace namely, "double" for a nd b. However, it literally reads the class of the argument passed in, i.