(!********************************************************* Mosel Python Example Problems ============================= file invert_matrix.mos `````````````````````` Invert a Mosel matrix in Python using pandas and NumPy. !!! This example requires an installation of Python 3, see !!! chapter 'python3' of the 'Mosel Language Reference' for !!! compatible versions and setup instructions. (c) 2018 Fair Isaac Corporation author: J. Müller *********************************************************!) model "invert_matrix" options noimplicit uses "python3" uses "mmjobs" ! Input data declarations I, J: range A, A_inverse: array(I, J) of real end-declarations procedure show_matrix(B: array(I: range, J: range) of real) forall (i in I) do forall (j in J) do write(B(i, j), " ") end-do writeln end-do end-procedure writeln("Run Python script that defines invert_matrix function.") writeln("Python DSO version: ", getdsoprop("python3", PROP_VERSION)) pyinitpandas pyrun("invert_matrix.py") I := 0..2 J := 0..2 A :: [1,0,3, 0,1,2, 0,0,1] writeln("Mosel matrix A:") show_matrix(A) ! Optional: Delete old values from result matrix before calling function. delcell(A_inverse) writeln("Invert matrix with NumPy.") pycall("invert_matrix", A_inverse, A) writeln("Matrix A_inverse:") show_matrix(A_inverse) end-model