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diff --git a/src/silx/math/test/test_histogramnd_nominal.py b/src/silx/math/test/test_histogramnd_nominal.py new file mode 100644 index 0000000..031a772 --- /dev/null +++ b/src/silx/math/test/test_histogramnd_nominal.py @@ -0,0 +1,937 @@ +# coding: utf-8 +# /*########################################################################## +# Copyright (C) 2016-2021 European Synchrotron Radiation Facility +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +# THE SOFTWARE. +# +# ############################################################################*/ +""" +Nominal tests of the histogramnd function. +""" + +import unittest +import pytest + +import numpy as np + +from silx.math.chistogramnd import chistogramnd as histogramnd +from silx.math import Histogramnd + + +def _get_bin_edges(histo_range, n_bins, n_dims): + edges = [] + for i_dim in range(n_dims): + edges.append(histo_range[i_dim, 0] + + np.arange(n_bins[i_dim] + 1) * + (histo_range[i_dim, 1] - histo_range[i_dim, 0]) / + n_bins[i_dim]) + return tuple(edges) + + +# ============================================================== +# ============================================================== +# ============================================================== + + +class _Test_chistogramnd_nominal(unittest.TestCase): + """ + Unit tests of the histogramnd function. + """ + __test__ = False # ignore abstract classe + + ndims = None + + def setUp(self): + if type(self).__name__.startswith("_"): + self.skipTest("Abstract class") + ndims = self.ndims + self.tested_dim = ndims-1 + + if ndims is None: + raise ValueError('ndims class member not set.') + + sample = np.array([5.5, -3.3, + 0., -0.5, + 3.3, 8.8, + -7.7, 6.0, + -4.0]) + + weights = np.array([500.5, -300.3, + 0.01, -0.5, + 300.3, 800.8, + -700.7, 600.6, + -400.4]) + + n_elems = len(sample) + + if ndims == 1: + shape = (n_elems,) + else: + shape = (n_elems, ndims) + + self.sample = np.zeros(shape=shape, dtype=sample.dtype) + if ndims == 1: + self.sample = sample + else: + self.sample[..., ndims-1] = sample + + self.weights = weights + + # the tests are performed along one dimension, + # all the other bins indices along the other dimensions + # are expected to be 2 + # (e.g : when testing a 2D sample : [0, x] will go into + # bin [2, y] because of the bin ranges [-2, 2] and n_bins = 4 + # for the first dimension) + self.other_axes_index = 2 + self.histo_range = np.repeat([[-2., 2.]], ndims, axis=0) + self.histo_range[ndims-1] = [-4., 6.] + + self.n_bins = np.array([4]*ndims) + self.n_bins[ndims-1] = 5 + + if ndims == 1: + def fill_histo(h, v, dim, op=None): + if op: + h[:] = op(h[:], v) + else: + h[:] = v + self.fill_histo = fill_histo + else: + def fill_histo(h, v, dim, op=None): + idx = [self.other_axes_index]*len(h.shape) + idx[dim] = slice(0, None) + idx = tuple(idx) + if op: + h[idx] = op(h[idx], v) + else: + h[idx] = v + self.fill_histo = fill_histo + + def test_nominal(self): + """ + """ + expected_h_tpl = np.array([2, 1, 1, 1, 1]) + expected_c_tpl = np.array([-700.7, -0.5, 0.01, 300.3, 500.5]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + histo, cumul, bin_edges = histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=self.weights) + + expected_edges = _get_bin_edges(self.histo_range, + self.n_bins, + self.ndims) + + self.assertEqual(cumul.dtype, np.float64) + self.assertEqual(histo.dtype, np.uint32) + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.array_equal(cumul, expected_c)) + + for i_edges, edges in enumerate(expected_edges): + self.assertTrue(np.array_equal(bin_edges[i_edges], + expected_edges[i_edges]), + msg='Testing bin_edges for dim {0}' + ''.format(i_edges+1)) + + def test_nominal_wh_dtype(self): + """ + """ + expected_h_tpl = np.array([2, 1, 1, 1, 1]) + expected_c_tpl = np.array([-700.7, -0.5, 0.01, 300.3, 500.5]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.float32) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + histo, cumul, bin_edges = histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=self.weights, + wh_dtype=np.float32) + + self.assertEqual(cumul.dtype, np.float32) + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.allclose(cumul, expected_c)) + + def test_nominal_uncontiguous_sample(self): + """ + """ + expected_h_tpl = np.array([2, 1, 1, 1, 1]) + expected_c_tpl = np.array([-700.7, -0.5, 0.01, 300.3, 500.5]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + shape = list(self.sample.shape) + shape[0] *= 2 + sample = np.zeros(shape, dtype=self.sample.dtype) + uncontig_sample = sample[::2, ...] + uncontig_sample[:] = self.sample + + self.assertFalse(uncontig_sample.flags['C_CONTIGUOUS'], + msg='Making sure the array is not contiguous.') + + histo, cumul, bin_edges = histogramnd(uncontig_sample, + self.histo_range, + self.n_bins, + weights=self.weights) + + self.assertEqual(cumul.dtype, np.float64) + self.assertEqual(histo.dtype, np.uint32) + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.array_equal(cumul, expected_c)) + + def test_nominal_uncontiguous_weights(self): + """ + """ + expected_h_tpl = np.array([2, 1, 1, 1, 1]) + expected_c_tpl = np.array([-700.7, -0.5, 0.01, 300.3, 500.5]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + shape = list(self.weights.shape) + shape[0] *= 2 + weights = np.zeros(shape, dtype=self.weights.dtype) + uncontig_weights = weights[::2, ...] + uncontig_weights[:] = self.weights + + self.assertFalse(uncontig_weights.flags['C_CONTIGUOUS'], + msg='Making sure the array is not contiguous.') + + histo, cumul, bin_edges = histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=uncontig_weights) + + self.assertEqual(cumul.dtype, np.float64) + self.assertEqual(histo.dtype, np.uint32) + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.array_equal(cumul, expected_c)) + + def test_nominal_wo_weights(self): + """ + """ + expected_h_tpl = np.array([2, 1, 1, 1, 1]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + + histo, cumul = histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=None)[0:2] + + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(cumul is None) + + def test_nominal_wo_weights_w_cumul(self): + """ + """ + expected_h_tpl = np.array([2, 1, 1, 1, 1]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + + # creating an array of ones just to make sure that + # it is not cleared by histogramnd + cumul_in = np.ones(self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + + histo, cumul = histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=None, + weighted_histo=cumul_in)[0:2] + + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(cumul is None) + self.assertTrue(np.array_equal(cumul_in, + np.ones(shape=self.n_bins, + dtype=np.double))) + + def test_nominal_wo_weights_w_histo(self): + """ + """ + expected_h_tpl = np.array([2, 1, 1, 1, 1]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + + # creating an array of ones just to make sure that + # it is not cleared by histogramnd + histo_in = np.ones(self.n_bins, dtype=np.uint32) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + + histo, cumul = histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=None, + histo=histo_in)[0:2] + + self.assertTrue(np.array_equal(histo, expected_h + 1)) + self.assertTrue(cumul is None) + self.assertEqual(id(histo), id(histo_in)) + + def test_nominal_last_bin_closed(self): + """ + """ + expected_h_tpl = np.array([2, 1, 1, 1, 2]) + expected_c_tpl = np.array([-700.7, -0.5, 0.01, 300.3, 1101.1]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + histo, cumul = histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=self.weights, + last_bin_closed=True)[0:2] + + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.array_equal(cumul, expected_c)) + + def test_int32_weights_double_weights_range(self): + """ + """ + weight_min = -299.9 # ===> will be cast to -299 + weight_max = 499.9 # ===> will be cast to 499 + + expected_h_tpl = np.array([0, 1, 1, 1, 0]) + expected_c_tpl = np.array([0., 0., 0., 300., 0.]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + histo, cumul = histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=self.weights.astype(np.int32), + weight_min=weight_min, + weight_max=weight_max)[0:2] + + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.array_equal(cumul, expected_c)) + + def test_reuse_histo(self): + """ + """ + + expected_h_tpl = np.array([2, 3, 2, 2, 2]) + expected_c_tpl = np.array([0.0, -7007, -5.0, 0.1, 3003.0]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + histo, cumul = histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=self.weights)[0:2] + + sample_2 = self.sample[:] + if len(sample_2.shape) == 1: + idx = (slice(0, None),) + else: + idx = slice(0, None), self.tested_dim + + sample_2[idx] += 2 + + histo_2, cumul = histogramnd(sample_2, # <==== !! + self.histo_range, + self.n_bins, + weights=10 * self.weights, # <==== !! + histo=histo)[0:2] + + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.array_equal(cumul, expected_c)) + self.assertEqual(id(histo), id(histo_2)) + + def test_reuse_cumul(self): + """ + """ + + expected_h_tpl = np.array([0, 2, 1, 1, 1]) + expected_c_tpl = np.array([-700.7, -7007.5, -4.99, 300.4, 3503.5]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + histo, cumul = histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=self.weights)[0:2] + + sample_2 = self.sample[:] + if len(sample_2.shape) == 1: + idx = (slice(0, None),) + else: + idx = slice(0, None), self.tested_dim + + sample_2[idx] += 2 + + histo, cumul_2 = histogramnd(sample_2, # <==== !! + self.histo_range, + self.n_bins, + weights=10 * self.weights, # <==== !! + weighted_histo=cumul)[0:2] + + self.assertEqual(cumul.dtype, np.float64) + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.allclose(cumul, expected_c, rtol=10e-15)) + self.assertEqual(id(cumul), id(cumul_2)) + + def test_reuse_cumul_float(self): + """ + """ + + expected_h_tpl = np.array([0, 2, 1, 1, 1]) + expected_c_tpl = np.array([-700.7, -7007.5, -4.99, 300.4, 3503.5], + dtype=np.float32) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + histo, cumul = histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=self.weights)[0:2] + + # converting the cumul array to float + cumul = cumul.astype(np.float32) + + sample_2 = self.sample[:] + if len(sample_2.shape) == 1: + idx = (slice(0, None),) + else: + idx = slice(0, None), self.tested_dim + + sample_2[idx] += 2 + + histo, cumul_2 = histogramnd(sample_2, # <==== !! + self.histo_range, + self.n_bins, + weights=10 * self.weights, # <==== !! + weighted_histo=cumul)[0:2] + + self.assertEqual(cumul.dtype, np.float32) + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertEqual(id(cumul), id(cumul_2)) + self.assertTrue(np.allclose(cumul, expected_c, rtol=10e-15)) + +class _Test_Histogramnd_nominal(unittest.TestCase): + """ + Unit tests of the Histogramnd class. + """ + __test__ = False # ignore abstract class + + ndims = None + + def setUp(self): + ndims = self.ndims + if ndims is None: + self.skipTest("Abstract class") + self.tested_dim = ndims-1 + + if ndims is None: + raise ValueError('ndims class member not set.') + + sample = np.array([5.5, -3.3, + 0., -0.5, + 3.3, 8.8, + -7.7, 6.0, + -4.0]) + + weights = np.array([500.5, -300.3, + 0.01, -0.5, + 300.3, 800.8, + -700.7, 600.6, + -400.4]) + + n_elems = len(sample) + + if ndims == 1: + shape = (n_elems,) + else: + shape = (n_elems, ndims) + + self.sample = np.zeros(shape=shape, dtype=sample.dtype) + if ndims == 1: + self.sample = sample + else: + self.sample[..., ndims-1] = sample + + self.weights = weights + + # the tests are performed along one dimension, + # all the other bins indices along the other dimensions + # are expected to be 2 + # (e.g : when testing a 2D sample : [0, x] will go into + # bin [2, y] because of the bin ranges [-2, 2] and n_bins = 4 + # for the first dimension) + self.other_axes_index = 2 + self.histo_range = np.repeat([[-2., 2.]], ndims, axis=0) + self.histo_range[ndims-1] = [-4., 6.] + + self.n_bins = np.array([4]*ndims) + self.n_bins[ndims-1] = 5 + + if ndims == 1: + def fill_histo(h, v, dim, op=None): + if op: + h[:] = op(h[:], v) + else: + h[:] = v + self.fill_histo = fill_histo + else: + def fill_histo(h, v, dim, op=None): + idx = [self.other_axes_index]*len(h.shape) + idx[dim] = slice(0, None) + idx = tuple(idx) + if op: + h[idx] = op(h[idx], v) + else: + h[idx] = v + self.fill_histo = fill_histo + + def test_nominal(self): + """ + """ + expected_h_tpl = np.array([2, 1, 1, 1, 1]) + expected_c_tpl = np.array([-700.7, -0.5, 0.01, 300.3, 500.5]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + histo = Histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=self.weights) + + histo, cumul, bin_edges = histo + + expected_edges = _get_bin_edges(self.histo_range, + self.n_bins, + self.ndims) + + self.assertEqual(cumul.dtype, np.float64) + self.assertEqual(histo.dtype, np.uint32) + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.array_equal(cumul, expected_c)) + + for i_edges, edges in enumerate(expected_edges): + self.assertTrue(np.array_equal(bin_edges[i_edges], + expected_edges[i_edges]), + msg='Testing bin_edges for dim {0}' + ''.format(i_edges+1)) + + def test_nominal_wh_dtype(self): + """ + """ + expected_h_tpl = np.array([2, 1, 1, 1, 1]) + expected_c_tpl = np.array([-700.7, -0.5, 0.01, 300.3, 500.5]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.float32) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + histo, cumul, bin_edges = Histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=self.weights, + wh_dtype=np.float32) + + self.assertEqual(cumul.dtype, np.float32) + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.allclose(cumul, expected_c)) + + def test_nominal_uncontiguous_sample(self): + """ + """ + expected_h_tpl = np.array([2, 1, 1, 1, 1]) + expected_c_tpl = np.array([-700.7, -0.5, 0.01, 300.3, 500.5]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + shape = list(self.sample.shape) + shape[0] *= 2 + sample = np.zeros(shape, dtype=self.sample.dtype) + uncontig_sample = sample[::2, ...] + uncontig_sample[:] = self.sample + + self.assertFalse(uncontig_sample.flags['C_CONTIGUOUS'], + msg='Making sure the array is not contiguous.') + + histo, cumul, bin_edges = Histogramnd(uncontig_sample, + self.histo_range, + self.n_bins, + weights=self.weights) + + self.assertEqual(cumul.dtype, np.float64) + self.assertEqual(histo.dtype, np.uint32) + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.array_equal(cumul, expected_c)) + + def test_nominal_uncontiguous_weights(self): + """ + """ + expected_h_tpl = np.array([2, 1, 1, 1, 1]) + expected_c_tpl = np.array([-700.7, -0.5, 0.01, 300.3, 500.5]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + shape = list(self.weights.shape) + shape[0] *= 2 + weights = np.zeros(shape, dtype=self.weights.dtype) + uncontig_weights = weights[::2, ...] + uncontig_weights[:] = self.weights + + self.assertFalse(uncontig_weights.flags['C_CONTIGUOUS'], + msg='Making sure the array is not contiguous.') + + histo, cumul, bin_edges = Histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=uncontig_weights) + + self.assertEqual(cumul.dtype, np.float64) + self.assertEqual(histo.dtype, np.uint32) + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.array_equal(cumul, expected_c)) + + def test_nominal_wo_weights(self): + """ + """ + expected_h_tpl = np.array([2, 1, 1, 1, 1]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + + histo, cumul = Histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=None)[0:2] + + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(cumul is None) + + def test_nominal_last_bin_closed(self): + """ + """ + expected_h_tpl = np.array([2, 1, 1, 1, 2]) + expected_c_tpl = np.array([-700.7, -0.5, 0.01, 300.3, 1101.1]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + histo, cumul = Histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=self.weights, + last_bin_closed=True)[0:2] + + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.array_equal(cumul, expected_c)) + + def test_int32_weights_double_weights_range(self): + """ + """ + weight_min = -299.9 # ===> will be cast to -299 + weight_max = 499.9 # ===> will be cast to 499 + + expected_h_tpl = np.array([0, 1, 1, 1, 0]) + expected_c_tpl = np.array([0., 0., 0., 300., 0.]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + histo, cumul = Histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=self.weights.astype(np.int32), + weight_min=weight_min, + weight_max=weight_max)[0:2] + + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.array_equal(cumul, expected_c)) + + def test_nominal_no_sample(self): + """ + """ + + histo_inst = Histogramnd(None, + self.histo_range, + self.n_bins) + + histo, weighted_histo, edges = histo_inst + + self.assertIsNone(histo) + self.assertIsNone(weighted_histo) + self.assertIsNone(edges) + self.assertIsNone(histo_inst.histo) + self.assertIsNone(histo_inst.weighted_histo) + self.assertIsNone(histo_inst.edges) + + def test_empty_init_accumulate(self): + """ + """ + expected_h_tpl = np.array([2, 1, 1, 1, 1]) + expected_c_tpl = np.array([-700.7, -0.5, 0.01, 300.3, 500.5]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + histo_inst = Histogramnd(None, + self.histo_range, + self.n_bins) + + histo_inst.accumulate(self.sample, + weights=self.weights) + + histo = histo_inst.histo + cumul = histo_inst.weighted_histo + bin_edges = histo_inst.edges + + expected_edges = _get_bin_edges(self.histo_range, + self.n_bins, + self.ndims) + + self.assertEqual(cumul.dtype, np.float64) + self.assertEqual(histo.dtype, np.uint32) + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.array_equal(cumul, expected_c)) + + for i_edges, edges in enumerate(expected_edges): + self.assertTrue(np.array_equal(bin_edges[i_edges], + expected_edges[i_edges]), + msg='Testing bin_edges for dim {0}' + ''.format(i_edges+1)) + + def test_accumulate(self): + """ + """ + + expected_h_tpl = np.array([2, 3, 2, 2, 2]) + expected_c_tpl = np.array([-700.7, -7007.5, -4.99, 300.4, 3503.5]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + histo_inst = Histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=self.weights) + + sample_2 = self.sample[:] + if len(sample_2.shape) == 1: + idx = (slice(0, None),) + else: + idx = slice(0, None), self.tested_dim + + sample_2[idx] += 2 + + histo_inst.accumulate(sample_2, # <==== !! + weights=10 * self.weights) # <==== !! + + histo = histo_inst.histo + cumul = histo_inst.weighted_histo + bin_edges = histo_inst.edges + + self.assertEqual(cumul.dtype, np.float64) + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.allclose(cumul, expected_c, rtol=10e-15)) + + def test_accumulate_no_weights(self): + """ + """ + + expected_h_tpl = np.array([2, 3, 2, 2, 2]) + expected_c_tpl = np.array([-700.7, -0.5, 0.01, 300.3, 500.5]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + histo_inst = Histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=self.weights) + + sample_2 = self.sample[:] + if len(sample_2.shape) == 1: + idx = (slice(0, None),) + else: + idx = slice(0, None), self.tested_dim + + sample_2[idx] += 2 + + histo_inst.accumulate(sample_2) # <==== !! + + histo = histo_inst.histo + cumul = histo_inst.weighted_histo + bin_edges = histo_inst.edges + + self.assertEqual(cumul.dtype, np.float64) + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.allclose(cumul, expected_c, rtol=10e-15)) + + def test_accumulate_no_weights_at_init(self): + """ + """ + + expected_h_tpl = np.array([2, 3, 2, 2, 2]) + expected_c_tpl = np.array([0.0, -700.7, -0.5, 0.01, 300.3]) + + expected_h = np.zeros(shape=self.n_bins, dtype=np.double) + expected_c = np.zeros(shape=self.n_bins, dtype=np.double) + + self.fill_histo(expected_h, expected_h_tpl, self.ndims-1) + self.fill_histo(expected_c, expected_c_tpl, self.ndims-1) + + histo_inst = Histogramnd(self.sample, + self.histo_range, + self.n_bins, + weights=None) # <==== !! + + cumul = histo_inst.weighted_histo + self.assertIsNone(cumul) + + sample_2 = self.sample[:] + if len(sample_2.shape) == 1: + idx = (slice(0, None),) + else: + idx = slice(0, None), self.tested_dim + + sample_2[idx] += 2 + + histo_inst.accumulate(sample_2, + weights=self.weights) # <==== !! + + histo = histo_inst.histo + cumul = histo_inst.weighted_histo + bin_edges = histo_inst.edges + + self.assertEqual(cumul.dtype, np.float64) + self.assertTrue(np.array_equal(histo, expected_h)) + self.assertTrue(np.array_equal(cumul, expected_c)) + + def testNoneNativeTypes(self): + type = self.sample.dtype.newbyteorder("B") + sampleB = self.sample.astype(type) + + type = self.sample.dtype.newbyteorder("L") + sampleL = self.sample.astype(type) + + histo_inst = Histogramnd(sampleB, + self.histo_range, + self.n_bins, + weights=self.weights) + + histo_inst = Histogramnd(sampleL, + self.histo_range, + self.n_bins, + weights=self.weights) + + +class Test_chistogram_nominal_1d(_Test_chistogramnd_nominal): + __test__ = True # because _Test_chistogramnd_nominal is ignored + ndims = 1 + + +class Test_chistogram_nominal_2d(_Test_chistogramnd_nominal): + __test__ = True # because _Test_chistogramnd_nominal is ignored + ndims = 2 + + +class Test_chistogram_nominal_3d(_Test_chistogramnd_nominal): + __test__ = True # because _Test_chistogramnd_nominal is ignored + ndims = 3 + + +class Test_Histogramnd_nominal_1d(_Test_Histogramnd_nominal): + __test__ = True # because _Test_chistogramnd_nominal is ignored + ndims = 1 + + +class Test_Histogramnd_nominal_2d(_Test_Histogramnd_nominal): + __test__ = True # because _Test_chistogramnd_nominal is ignored + ndims = 2 + + +class Test_Histogramnd_nominal_3d(_Test_Histogramnd_nominal): + __test__ = True # because _Test_chistogramnd_nominal is ignored + ndims = 3 |