How Do I Change the MATLAB Path?

You can change the MATLAB path primarily through two methods: using the "Set Path" button in the toolbar or by running the pathtool command directly in the Command Window.

Changing the MATLAB path allows you to tell MATLAB where to look for files like functions, scripts, and classes that are not in the current working directory or built-in to MATLAB. This is essential when you want to use your own code or third-party toolboxes without navigating to their directories every time.

Methods to Modify the MATLAB Path

As per the reference dated 11-Sept-2016, the two main ways to adjust the MATLAB path are:

1. Using the "Set Path" Button

This is the graphical method and often preferred for its user-friendly interface.

• Locate the "Set Path" button: You will find this button typically in the Environment section of the MATLAB toolbar.
• Clicking "Set Path": This action opens the "Set Path" dialog box.
• Managing Directories: Within this dialog box, you can:
  • Add new folders to the path.
  • Remove existing folders from the path.
  • Change the order of folders in the path (which affects precedence when files have the same name).
  • Save your changes so they persist across MATLAB sessions.

2. Running the pathtool Command

For users who prefer working with the Command Window or scripting changes, the pathtool command is the direct route.

• Open the Command Window: Ensure the MATLAB Command Window is active.
• Type the command: Simply type pathtool and press Enter.
• Accessing the Dialog Box: Executing this command opens the exact same "Set Path" dialog box as clicking the button, allowing you to perform the same path management tasks described above.

Using either the button or the command gives you full control over which directories MATLAB includes in its search path. It's important to save your changes in the dialog box to ensure your path modifications are active for future MATLAB sessions.