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Configure the Run Button for Functions

Functions are program files that accept inputs and return outputs. To run functions that require input argument values or any other additional setup from the Editor, configure the Run button.

To configure the Run button in the Editor, click Run and add one or more run commands.

For example:

  1. Create the function myfunction.m that performs a calculation using the inputs x and y and stores the results in z.

    function z = myfunction(x,y)
    z = x.^2 + y;
  2. Go to the Editor tab and click Run . MATLAB® displays the list of commands available for running the function.

  3. Click the last item in the list and replace the text type code to run with a call to the function including the required input arguments. For example, enter the text result = myfunction(1:10,5) to run myfunction with the input arguments 1:10 and 5, and store the results in the variable result. MATLAB replaces the default command with the newly added command.

    To run multiple commands at once, enter the commands on the same line. For example, enter the text a = 1:10; b = 5; result = myfunction(a,b) to create the variables a and b and then call myfunction with a and b as the input arguments.


    If you define a run command that creates a variable with the same name as a variable in the base workspace, the run command variable overwrites the base workspace variable when you run that run command.

  4. Click the Run button. MATLAB runs the function using the first run command in the list. For example, click Run to run myfunction using the command result = myfunction(1:10,5). MATLAB displays the result in the Command Window.

    result =
         6     9    14    21    30    41    54    69    86 

    To run the function using a different run command from the list, click Run and select the desired command. When you select a run command from the list, it becomes the default for the Run button.

    To edit or delete an existing run command, click Run , right-click the command, and then select Edit or Delete.


Running live functions in the Live Editor using the Run button is only supported in MATLAB Online™. When you run a live function using the Run button, the output displays in the Command Window. To run a live function in an installed version of MATLAB, call the function from the Command Window or from a script or live script.

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