src/main/python/tests/matrix/test_aggregations.py

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import unittest

import numpy as np
from systemds.context import SystemDSContext
from systemds.matrix import Matrix

dim = 5
np.random.seed(7)
m1 = np.array(np.random.randint(100, size=dim * dim) + 1.01, dtype=np.double)
m1.shape = (dim, dim)
m2 = np.array(np.random.randint(5, size=dim * dim) + 1, dtype=np.double)
m2.shape = (dim, dim)


class TestMatrixAggFn(unittest.TestCase):

    sds: SystemDSContext = None

    @classmethod
    def setUpClass(cls):
        cls.sds = SystemDSContext()

    @classmethod
    def tearDownClass(cls):
        cls.sds.close()

    def test_sum1(self):
        self.assertTrue(np.allclose(
            Matrix(self.sds, m1).sum().compute(), m1.sum()))

    def test_sum2(self):
        self.assertTrue(np.allclose(
            Matrix(self.sds, m1).sum(axis=0).compute(), m1.sum(axis=0)))

    def test_sum3(self):
        self.assertTrue(np.allclose(
            Matrix(self.sds, m1).sum(axis=1).compute(), m1.sum(axis=1).reshape(dim, 1)))

    def test_mean1(self):
        self.assertTrue(np.allclose(
            Matrix(self.sds, m1).mean().compute(), m1.mean()))

    def test_mean2(self):
        self.assertTrue(np.allclose(
            Matrix(self.sds, m1).mean(axis=0).compute(), m1.mean(axis=0)))

    def test_mean3(self):
        self.assertTrue(np.allclose(
            Matrix(self.sds, m1).mean(axis=1).compute(), m1.mean(axis=1).reshape(dim, 1)))

    def test_full(self):
        self.assertTrue(np.allclose(
            self.sds.full( (2, 3), 10.1).compute(), np.full((2, 3), 10.1)))

    def test_seq(self):
        self.assertTrue(np.allclose(
            self.sds.seq(3).compute(), np.arange(4).reshape(4, 1)))

    def test_var1(self):
        self.assertTrue(np.allclose(
            Matrix(self.sds, m1).var().compute(), m1.var(ddof=1)))

    def test_var2(self):
        self.assertTrue(np.allclose(
            Matrix(self.sds, m1).var(axis=0).compute(), m1.var(axis=0, ddof=1)))

    def test_var3(self):
        self.assertTrue(np.allclose(
            Matrix(self.sds, m1).var(axis=1).compute(), m1.var(axis=1, ddof=1).reshape(dim, 1)))


if __name__ == "__main__":
    unittest.main(exit=False)