Ejemplo n.º 1
0
 def test_solve(self):
     """Test the complete linear programing solution, using the 
     example from the documentation"""
     mat = [
             [ 1.0, 1.0, 1.0],
             [10.0, 4.0, 5.0],
             [ 2.0, 2.0, 6.0],
     ]
     lp.load(mat)
     lp.objective_coefficients([ 10.0, 6.0, 4.0 ])
     lp.row_bounds([(None, 100.0), (None, 600.0), (None, 300.0)])
     lp.col_bounds([(0, None), (0, None), (0, None)])
     status, result = lp.solve()
     r = "%0.3f" % result
     self.assertEqual(r, "733.333")
     self.assertEqual(status, 'opt')
Ejemplo n.º 2
0
    def test_primals(self):
        """Test getting the primals back as a list"""
        mat = [
                [ 1.0, 1.0, 1.0],
                [10.0, 4.0, 5.0],
                [ 2.0, 2.0, 6.0],
        ]
        rh = ['a', 'b', 'c']
        ch = ['x', 'y', 'z']

        lp.load(mat, rh, ch)
        lp.objective_coefficients([ 10.0, 6.0, 4.0 ])
        lp.row_bounds([(None, 100.0), (None, 600.0), (None, 300.0)])
        lp.col_bounds([(0, None), (0, None), (0, None)])
        status, result = lp.solve()
        col_pri = [33.333333333333336, 66.66666666666666, 0.0]
        col_res = lp.col_primals()
        self.assertEqual(col_pri, col_res)
Ejemplo n.º 3
0
    parser.add_argument('-m', '--media', help="Media input file")
    parser.add_argument('-o', '--out', help="Output file")
    parser.add_argument('-v',
                        '--verbose',
                        action="store_true",
                        help="Output status messages")
    args = parser.parse_args()
    sbmlf = args.sbml
    output = args.out if args.out else None
    mediaf = args.media if args.media else None
    verbose = args.verbose

    doc = parse_sbml_file(sbmlf)
    model = doc.getModel()
    if mediaf:
        media = parse_media_file(mediaf)
    else:
        media = None

    compound_ids, reaction_ids, stiochio_m, objFunc = parse_stoichiometry(
        model)
    compound_ids, reaction_ids = create_smatrix(compound_ids, reaction_ids,
                                                stiochio_m, objFunc)

    reaction_bounds(model, reaction_ids, media)
    compound_bounds(compound_ids)

    status, value = lp.solve()
    print("Solved the FBA with status: {}".format(status))
    print("Objective value: {}".format(value))
Ejemplo n.º 4
0
if __name__ == '__main__':

    parser = argparse.ArgumentParser()
    parser.add_argument("sbml", help='SBML Model file')
    parser.add_argument('-m', '--media', help="Media input file")
    parser.add_argument('-o', '--out', help="Output file")
    parser.add_argument('-v', '--verbose', action="store_true",
                        help="Output status messages")
    args = parser.parse_args()
    sbmlf = args.sbml
    output = args.out if args.out else None
    mediaf = args.media if args.media else None
    verbose = args.verbose

    doc = parse_sbml_file(sbmlf)
    model = doc.getModel()
    if mediaf:
        media = parse_media_file(mediaf)
    else:
        media = None

    cpdIds, rxnIds, sm, objFunc = parse_stoichiometry(model)
    cpdIds, rxnIds = createSMatrix(cpdIds, rxnIds, sm, objFunc)

    reaction_bounds(model, rxnIds, media)
    compound_bounds(cpdIds)

    status, value = lp.solve()
    print("Solved the FBA with status: {}".format(status))
    print("Objective value: {}".format(value))