To use MATLAB® arrays in Python®, you can either install the Python engine before running your packaged application, as described in Install MATLAB Engine API for Python, or use
import mypackage
before import matlab
in the following
programs.
The MATLAB Engine API for Python provides a Python package named matlab
that enables you to call MATLAB functions from Python. The matlab
package provides constructors to create MATLAB arrays in Python. It can create arrays of any MATLAB numeric or logical type from Python sequence types. Multidimensional MATLAB arrays are supported. For a list of other supported array types, see Pass Data to MATLAB from Python.
Create a MATLAB array in Python, and call a MATLAB function on it. Assuming that you have a package named
mypackage
and a method called mysqrt
inside the package,
you can use matlab.double
to create an array of doubles given a Python list that contains numbers. You can call the MATLAB function mysqrt
on x
, and the return value
is another matlab.double
array as shown in the following program:
import matlab import mypackage pkg = mypackage.initialize() x = matlab.double([1,4,9,16,25]) print(pkg.mysqrt(x))
The output is:
[[1.0,2.0,3.0,4.0,5.0]]
Create a multidimensional array. The magic
function returns a 2-D array
to Python scope. Assuming you have method called mysqrt
inside
mypackage
, you can use the following code to call that method:
import matlab import mypackage pkg = mypackage.initialize() x = matlab.double([1,4,9,16,25]) print(pkg.mymagic(6))
The output is:
[[35.0,1.0,6.0,26.0,19.0,24.0],[3.0,32.0,7.0,21.0,23.0,25.0], [31.0,9.0,2.0,22.0,27.0,20.0],[8.0,28.0,33.0,17.0,10.0,15.0], [30.0,5.0,34.0,12.0,14.0,16.0],[4.0,36.0,29.0,13.0,18.0,11.0]]