def _calc_basic_statistics(self):
"""This function determines the mean and the standard deviation
of the data sample.
Furthermore, several other simple properties are determined.
"""
self.mean = stats.mean(self._data_samples)
self.geom_mean = stats.geomean(self._data_samples)
self.median = stats.median(self._data_samples)
self.std_dev = stats.stddev(self._data_samples)
self.min = min(self._data_samples)
self.max = max(self._data_samples)
def _calc_basic_statistics(self):
"""This function determines the mean and the standard deviation
of the data sample.
Furthermore, several other simple properties are determined.
"""
self.mean = stats.mean(self._data_samples)
self.geom_mean = stats.geomean(self._data_samples)
self.median = stats.median(self._data_samples)
self.std_dev = stats.stddev(self._data_samples)
self.min = min(self._data_samples)
self.max = max(self._data_samples)
def test_stddev_simple(self):
self.assertAlmostEqual(0.8164965809, stats.stddev([1, 2, 3]))
self.assertAlmostEqual(0.8164965809, stats.stddev([1.0, 2.0, 3.0]))
self.assertAlmostEqual(14.142135623, stats.stddev(self._integers))
self.assertAlmostEqual(14.142135623, stats.stddev(self._floats))
self.assertAlmostEqual(14.142135623, stats.stddev(self._floats2))
self.assertAlmostEqual(14.319929870, stats.stddev(self._mixed))
def test_stddev_vs_numpy(self):
self.assertAlmostEqual(numpy.std([1, 2, 3]), stats.stddev([1, 2, 3]))
self.assertAlmostEqual(numpy.std([1.0, 2.0, 3.0]), stats.stddev([1.0, 2.0, 3.0]))
self.assertAlmostEqual(numpy.std(self._integers), stats.stddev(self._integers))
self.assertAlmostEqual(numpy.std(self._floats), stats.stddev(self._floats))
self.assertAlmostEqual(numpy.std(self._floats2), stats.stddev(self._floats2))
self.assertAlmostEqual(numpy.std(self._mixed), stats.stddev(self._mixed))
def test_stddev_simple(self):
self.assertAlmostEqual(0.8164965809, stats.stddev([1, 2, 3]))
self.assertAlmostEqual(0.8164965809, stats.stddev([1.0, 2.0, 3.0]))
self.assertAlmostEqual(14.142135623, stats.stddev(self._integers))
self.assertAlmostEqual(14.142135623, stats.stddev(self._floats))
self.assertAlmostEqual(14.142135623, stats.stddev(self._floats2))
self.assertAlmostEqual(14.319929870, stats.stddev(self._mixed))
def test_stddev_vs_numpy(self):
self.assertAlmostEqual(numpy.std([1, 2, 3]), stats.stddev([1, 2, 3]))
self.assertAlmostEqual(numpy.std([1.0, 2.0, 3.0]),
stats.stddev([1.0, 2.0, 3.0]))
self.assertAlmostEqual(numpy.std(self._integers),
stats.stddev(self._integers))
self.assertAlmostEqual(numpy.std(self._floats),
stats.stddev(self._floats))
self.assertAlmostEqual(numpy.std(self._floats2),
stats.stddev(self._floats2))
self.assertAlmostEqual(numpy.std(self._mixed),
stats.stddev(self._mixed))