def test_mode_allows_valid_convolution(self):
binned = sp.ones(10)
sampling_rate = 2.0 * pq.Hz
kernel = sigproc.RectangularKernel(0.6 * pq.s)
expected_length = 8
actual = sigproc.smooth(
binned, kernel, sampling_rate=sampling_rate, mode='valid')
self.assertEqual(actual.size, expected_length)
def test_mode_allows_valid_convolution(self):
binned = sp.ones(10)
sampling_rate = 2.0 * pq.Hz
kernel = sigproc.RectangularKernel(0.6 * pq.s)
expected_length = 8
actual = sigproc.smooth(binned,
kernel,
sampling_rate=sampling_rate,
mode='valid')
self.assertEqual(actual.size, expected_length)
def test_returns_smoothed_representation(self):
binned = sp.array([0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0])
sampling_rate = 4 * pq.Hz
kernel = sigproc.RectangularKernel(0.3 * pq.s)
# Because of the low sampling rate the expected result is a bit off
# from the analytical result.
expected = sp.array(
[0.0, 0.0, 0.0, 1.6666666, 1.6666666, 1.6666666, 0.0,
1.6666666, 1.6666666, 1.6666666, 0.0, 0.0]) * pq.Hz
actual = sigproc.smooth(binned, kernel, sampling_rate=sampling_rate)
assert_array_almost_equal(expected, actual)
def test_returns_smoothed_representation(self):
binned = sp.array([0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0])
sampling_rate = 4 * pq.Hz
kernel = sigproc.RectangularKernel(0.3 * pq.s)
# Because of the low sampling rate the expected result is a bit off
# from the analytical result.
expected = sp.array([
0.0, 0.0, 0.0, 1.6666666, 1.6666666, 1.6666666, 0.0, 1.6666666,
1.6666666, 1.6666666, 0.0, 0.0
]) * pq.Hz
actual = sigproc.smooth(binned, kernel, sampling_rate=sampling_rate)
assert_array_almost_equal(expected, actual)
def test_length_of_returned_array_equals_length_of_binned(self):
binned = sp.ones(10)
sampling_rate = 10 * pq.Hz
result = sigproc.smooth(binned, sigproc.GaussianKernel(),
sampling_rate)
self.assertEqual(binned.size, result.size)
def test_convolution_with_empty_binned_array_returns_array_of_zeros(self):
binned = sp.zeros(10)
sampling_rate = 10 * pq.Hz
result = sigproc.smooth(binned, sigproc.GaussianKernel(),
sampling_rate)
self.assertTrue(sp.all(result == 0.0))
def test_length_of_returned_array_equals_length_of_binned(self):
binned = sp.ones(10)
sampling_rate = 10 * pq.Hz
result = sigproc.smooth(binned, sigproc.GaussianKernel(), sampling_rate)
self.assertEqual(binned.size, result.size)
def test_convolution_with_empty_binned_array_returns_array_of_zeros(self):
binned = sp.zeros(10)
sampling_rate = 10 * pq.Hz
result = sigproc.smooth(binned, sigproc.GaussianKernel(), sampling_rate)
self.assertTrue(sp.all(result == 0.0))