How to access a matlab function within a forloop from python

Hello All,

I am trying to access a matlab function from python. I have carried out all the initial setup steps and I am also able to acess a simple script and functions from python. However, I want to access a matlab function within a forloop from python. This is the previous reference link which I used.

file1= Test1.m

classdef Test1 < handle
    properties (Access = private)
        input1 =0;
        input2 = 0;
    end

      methods

          function out1 = ADD_1(this,i1,i2)
              %             Test1.input1 = i1;
              %             Test1.input2 = i2;
              %
              %             out1 = Test1.input1 + Test1.input2;
              %
              this.input1 = i1;
              this.input2 = i2;
              %             out1 = this.input1 + this.input2;
              out1 = i1 + i2;
              plot(out1);
          end
          function out2 = SUB_1(this,out1)
              out2 = out1 - 1;
          end

      end
  end

file2 = call_Test1.m

obj1 = Test1();
out_store = [];
for i = 1:5
    o1 = obj1.ADD_1(12,i);
    o2 = obj1.SUB_1(o1);
    out_store = [out_store;o1,o2];

end
disp(out_store);
plot(out_store);

in python,

import matlab.engine
eng = matlab.engine.start_matlab()
eng.addpath(r'C:\Users\Mat2Py_code_test', nargout = 0)
myobj = eng.Test1()

How to proceed further to call this Test1.m file from python which further accesses call_Test1.m

Answer 1

[Harry Vancao]

If you are interested in calling the script from call_Test1.m, you can simply convert that into a function itself and call it from python. Some documentation detailing this process can be found here: https://www.mathworks.com/help/matlab/matlab_external/call-user-script-and-function-from-python.html

If you are interested in calling the functions from within a for loop, you can instantiate an instance of the MATLAB object Test1() and then proceed to call the MATLAB function from within a python for-loop.

 myobj = eng.Test1()
 for i in range(5):
     func1_out = end.ADD_1(myobj, 10, 20)