How can I execute MATLAB code in Python?

1 year ago
Emily Johnson
2 minutes

To run MATLAB code in Python, you need to use the MATLAB Engine API.

Here are some steps:

  1. Install the MATLAB Engine API: Make sure MATLAB is already installed on your computer and that you have installed the MATLAB Engine API that matches your Python version.
  2. Import the MATLAB Engine API: At the top of your Python script, import the MATLAB Engine API using “import matlab.engine”.
  3. Connect to the MATLAB Engine: Start the MATLAB Engine and establish a connection with it using the matlab.engine.start_matlab() function. Assign it to a variable for later use.
  4. To run MATLAB code, use the matlab.engine variable followed by a period, and then input the code you want to run. For example, eng.eval(“a = 2; b = 3; c = a + b;”) runs the MATLAB code a = 2; b = 3; c = a + b;.
  5. To access the value of a MATLAB variable, simply use the matlab.engine variable followed by a dot, then enter the name of the MATLAB variable you want to retrieve its value. For example, result = eng.workspace[‘c’] will retrieve the value of MATLAB variable c and assign it to the result variable.
  6. Close the MATLAB engine: Use eng.quit() to shut down the MATLAB engine.

Below is a complete example:

import matlab.engine

def run_matlab_code():
    eng = matlab.engine.start_matlab()
    eng.eval("a = 2; b = 3; c = a + b;")
    result = eng.workspace['c']
    print(result)
    eng.quit()

run_matlab_code()

This is a simple example demonstrating the process of running MATLAB code in Python and obtaining results. You can modify and expand this example according to your needs. Keep in mind that in order to run MATLAB code in Python, you need to ensure that MATLAB is installed on your computer and the MATLAB engine API matching your Python version is installed.

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