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test_primitives.py
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test_primitives.py
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# CONTAINS TECHNICAL DATA/COMPUTER SOFTWARE DELIVERED TO THE U.S. GOVERNMENT WITH UNLIMITED RIGHTS
#
# Contract No.: CA 80MSFC17M0022
# Contractor Name: Universities Space Research Association
# Contractor Address: 7178 Columbia Gateway Drive, Columbia, MD 21046
#
# Copyright 2017-2022 by Universities Space Research Association (USRA). All rights reserved.
#
# Developed by: William Cleveland and Adam Goldstein
# Universities Space Research Association
# Science and Technology Institute
# https://sti.usra.edu
#
# Developed by: Daniel Kocevski
# National Aeronautics and Space Administration (NASA)
# Marshall Space Flight Center
# Astrophysics Branch (ST-12)
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
# in compliance with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software distributed under the License
# is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied. See the License for the specific language governing permissions and limitations under the
# License.
#
import unittest
import numpy as np
from gdt.core.data_primitives import *
from gdt.core.binning.binned import combine_by_factor
from gdt.core.binning.unbinned import bin_by_time
class TestRange(unittest.TestCase):
def setUp(self):
self.range = Range(0.0, 10.0)
def test_center(self):
self.assertEqual(self.range.center, 5.0)
def test_width(self):
self.assertEqual(self.range.width, 10.0)
def test_as_tuple(self):
self.assertTupleEqual(self.range.as_tuple(), (0.0, 10.0))
def test_contains(self):
self.assertTrue(self.range.contains(1.0, inclusive=False))
self.assertFalse(self.range.contains(10.0, inclusive=False))
self.assertFalse(self.range.contains(0.0, inclusive=False))
self.assertFalse(self.range.contains(20.0, inclusive=False))
self.assertTrue(self.range.contains(1.0, inclusive=True))
self.assertTrue(self.range.contains(10.0, inclusive=True))
self.assertTrue(self.range.contains(0.0, inclusive=True))
self.assertFalse(self.range.contains(20.0, inclusive=False))
def test_intersection(self):
# intersect on high end
range2 = Range(5.0, 15.0)
range_intersect = Range.intersection(self.range, range2)
self.assertTupleEqual(range_intersect.as_tuple(), (5.0, 10.0))
# flip order
range_intersect = Range.intersection(range2, self.range)
self.assertTupleEqual(range_intersect.as_tuple(), (5.0, 10.0))
# intersect on low end
range2 = Range(-5.0, 5.0)
range_intersect = Range.intersection(self.range, range2)
self.assertTupleEqual(range_intersect.as_tuple(), (0.0, 5.0))
# one range contained inside other
range2 = Range(5.0, 6.0)
range_intersect = Range.intersection(self.range, range2)
self.assertTupleEqual(range_intersect.as_tuple(), (5.0, 6.0))
# no intersection
range2 = Range(20.0, 30.0)
range_intersect = Range.intersection(self.range, range2)
self.assertIsNone(range_intersect)
def test_union(self):
# union on high end
range2 = Range(5.0, 15.0)
range_union = Range.union(self.range, range2)
self.assertTupleEqual(range_union.as_tuple(), (0.0, 15.0))
# flip order
range_union = Range.union(range2, self.range)
self.assertTupleEqual(range_union.as_tuple(), (0.0, 15.0))
# union on low end
range2 = Range(-5.0, 5.0)
range_union = Range.union(self.range, range2)
self.assertTupleEqual(range_union.as_tuple(), (-5.0, 10.0))
# one range contained inside other
range2 = Range(5.0, 6.0)
range_union = Range.union(self.range, range2)
self.assertTupleEqual(range_union.as_tuple(), (0.0, 10.0))
def test_equal(self):
self.assertTrue(self.range == self.range)
range2 = Range(1.0, 10.0)
self.assertFalse(range2 == self.range)
self.assertFalse(self.range == range2)
class TestTimeRange(unittest.TestCase):
def setUp(self):
self.range = TimeRange(-5.0, 100.0)
def test_duration(self):
self.assertEqual(self.range.duration, 105.0)
def test_tstart(self):
self.assertEqual(self.range.tstart, -5.0)
def test_tstop(self):
self.assertEqual(self.range.tstop, 100.0)
def test_errors(self):
with self.assertRaises(TypeError):
range = TimeRange('', 1.0)
with self.assertRaises(TypeError):
range = TimeRange(1.0, '')
class TestEnergyRange(unittest.TestCase):
def setUp(self):
self.range = EnergyRange(10.0, 1000.0)
def test_emax(self):
self.assertEqual(self.range.emax, 1000.0)
def test_emin(self):
self.assertEqual(self.range.emin, 10.0)
def test_log_center(self):
self.assertEqual(self.range.log_center, 100.0)
def test_errors(self):
with self.assertRaises(TypeError):
range = EnergyRange('', 1.0)
with self.assertRaises(TypeError):
range = EnergyRange(1.0, '')
class TestIntervals(unittest.TestCase):
def setUp(self):
low = (0.0, 10.0, 20.0)
high = (10.0, 20.0, 30.0)
self.intervals = Intervals.from_bounds(low, high)
def test_init(self):
intervals = Intervals(interval=Range(0.0, 10.0))
self.assertTupleEqual(intervals[0].as_tuple(), (0.0, 10.0))
def test_intervals(self):
self.assertTupleEqual(self.intervals.intervals[0].as_tuple(), (0.0, 10.0))
self.assertTupleEqual(self.intervals.intervals[1].as_tuple(), (10.0, 20.0))
self.assertTupleEqual(self.intervals.intervals[2].as_tuple(), (20.0, 30.0))
def test_access(self):
self.assertTupleEqual(self.intervals[0].as_tuple(), (0.0, 10.0))
self.assertTupleEqual(self.intervals[1].as_tuple(), (10.0, 20.0))
self.assertTupleEqual(self.intervals[2].as_tuple(), (20.0, 30.0))
def test_num_intervals(self):
self.assertEqual(self.intervals.num_intervals, 3)
def test_range(self):
self.assertTupleEqual(self.intervals.range, (0.0, 30.0))
def test_as_list(self):
vals = [(0.0, 10.0), (10.0, 20.0), (20.0, 30.0)]
lst = self.intervals.as_list()
for i in range(3):
self.assertTupleEqual(lst[i], vals[i])
def test_contains(self):
self.assertTrue(self.intervals.contains(1.0, inclusive=False))
self.assertFalse(self.intervals.contains(10.0, inclusive=False))
self.assertFalse(self.intervals.contains(35.0, inclusive=False))
self.assertTrue(self.intervals.contains(1.0, inclusive=True))
self.assertTrue(self.intervals.contains(10.0, inclusive=True))
self.assertFalse(self.intervals.contains(35.0, inclusive=True))
def test_high_edges(self):
self.assertListEqual(self.intervals.high_edges(), [10.0, 20.0, 30.0])
def test_insert(self):
# insert a duplicate
self.intervals.insert(Range(0.0, 10.0))
vals = [(0.0, 10.0), (10.0, 20.0), (20.0, 30.0)]
lst = self.intervals.as_list()
for i in range(3):
self.assertTupleEqual(lst[i], vals[i])
# insert at end
self.intervals.insert(Range(30.0, 40.0))
vals = [(0.0, 10.0), (10.0, 20.0), (20.0, 30.0), (30.0, 40.0)]
lst = self.intervals.as_list()
for i in range(4):
self.assertTupleEqual(lst[i], vals[i])
# insert at beginning
self.intervals.insert(Range(-10.0, -1.0))
vals = [(-10.0, -1.0), (0.0, 10.0), (10.0, 20.0), (20.0, 30.0),
(30.0, 40.0)]
lst = self.intervals.as_list()
for i in range(5):
self.assertTupleEqual(lst[i], vals[i])
# insert in middle and overlapping
self.intervals.insert(Range(15.0, 25.0))
vals = [(-10.0, -1.0), (0.0, 10.0), (10.0, 30.0), (30.0, 40.0)]
lst = self.intervals.as_list()
for i in range(4):
self.assertTupleEqual(lst[i], vals[i])
def test_low_edges(self):
self.assertListEqual(self.intervals.low_edges(), [0.0, 10.0, 20.0])
def test_from_list(self):
lst = [(0.0, 10.0), (10.0, 20.0), (20.0, 30.0)]
intervals = Intervals.from_list(lst)
self.assertListEqual(intervals.low_edges(), [0.0, 10.0, 20.0])
self.assertListEqual(intervals.high_edges(), [10.0, 20.0, 30.0])
def test_intersection(self):
# overlapping
intervals2 = Intervals.from_list([(-5.0, 5.0), (25.0, 35.0)])
intervals_intersect = Intervals.intersection(self.intervals, intervals2)
self.assertListEqual(intervals_intersect.high_edges(), [5.0, 30.0])
self.assertListEqual(intervals_intersect.low_edges(), [0.0, 25.0])
# flip order
intervals_intersect = Intervals.intersection(intervals2, self.intervals)
self.assertListEqual(intervals_intersect.high_edges(), [5.0, 30.0])
self.assertListEqual(intervals_intersect.low_edges(), [0.0, 25.0])
# one encompasses the other
intervals2 = Intervals(Range(-10.0, 50.0))
intervals_intersect = Intervals.intersection(self.intervals, intervals2)
self.assertListEqual(intervals_intersect.high_edges(), [10.0, 20.0, 30.0])
self.assertListEqual(intervals_intersect.low_edges(), [0.0, 10.0, 20.0])
# no overlap
intervals2 = Intervals(Range(50.0, 100.0))
intervals_intersect = Intervals.intersection(self.intervals, intervals2)
self.assertListEqual(intervals_intersect.high_edges(), [])
self.assertListEqual(intervals_intersect.low_edges(), [])
def test_merge(self):
# overlapping
intervals2 = Intervals.from_list([(-5.0, 5.0), (25.0, 35.0)])
intervals_merged = Intervals.merge(self.intervals, intervals2)
self.assertListEqual(intervals_merged.high_edges(), [10.0, 20.0, 35.0])
self.assertListEqual(intervals_merged.low_edges(), [-5.0, 10.0, 20.0])
# flip order
intervals_merged = Intervals.merge(intervals2, self.intervals)
self.assertListEqual(intervals_merged.high_edges(), [10.0, 20.0, 35.0])
self.assertListEqual(intervals_merged.low_edges(), [-5.0, 10.0, 20.0])
# one encompasses the other
intervals2 = Intervals(Range(-10.0, 50.0))
intervals_merged = Intervals.merge(self.intervals, intervals2)
self.assertListEqual(intervals_merged.high_edges(), [50.0])
self.assertListEqual(intervals_merged.low_edges(), [-10.0])
# no overlap
intervals2 = Intervals(Range(50.0, 100.0))
intervals_merged = Intervals.merge(self.intervals, intervals2)
self.assertListEqual(intervals_merged.high_edges(), [10.0, 20.0, 30.0, 100.0])
self.assertListEqual(intervals_merged.low_edges(), [0.0, 10.0, 20.0, 50.0])
class TestGti(unittest.TestCase):
def test_init(self):
gti = Gti.from_list([(0.0, 10.0)])
self.assertIsInstance(gti[0], TimeRange)
def test_from_boolean_mask(self):
times = np.arange(10.0)
# all times valid
mask = np.ones_like(times, dtype=bool)
gti = Gti.from_boolean_mask(times, mask)
self.assertListEqual(gti.high_edges(), [9.0])
self.assertListEqual(gti.low_edges(), [0.0])
# exclude first
mask[0] = False
gti = Gti.from_boolean_mask(times, mask)
self.assertListEqual(gti.high_edges(), [9.0])
self.assertListEqual(gti.low_edges(), [1.0])
# exclude last
mask[-1] = False
gti = Gti.from_boolean_mask(times, mask)
self.assertListEqual(gti.high_edges(), [8.0])
self.assertListEqual(gti.low_edges(), [1.0])
# exclude in middle
mask[4:6] = False
gti = Gti.from_boolean_mask(times, mask)
self.assertListEqual(gti.high_edges(), [3.0, 8.0])
self.assertListEqual(gti.low_edges(), [1.0, 6.0])
# no times valid
mask[:] = False
gti = Gti.from_boolean_mask(times, mask)
self.assertIsNone(gti)
class TestEbounds(unittest.TestCase):
def test_init(self):
ebounds = Ebounds.from_list([(50.0, 300.0)])
self.assertIsInstance(ebounds[0], EnergyRange)
class TestBins(unittest.TestCase):
def setUp(self):
counts = [0, 9, 16, 4]
low = [0.0, 1.0, 2.0, 3.0]
high = [1.0, 2.0, 3.0, 4.0]
self.bins = Bins(counts, low, high)
def test_centroids(self):
self.assertListEqual(self.bins.centroids.tolist(), [0.5, 1.5, 2.5, 3.5])
def test_counts(self):
self.assertListEqual(self.bins.counts.tolist(), [0, 9, 16, 4])
def test_count_uncertainty(self):
self.assertListEqual(self.bins.count_uncertainty.tolist(), [0, 3, 4, 2])
def test_hi_edges(self):
self.assertListEqual(self.bins.hi_edges.tolist(), [1.0, 2.0, 3.0, 4.0])
def test_lo_edges(self):
self.assertListEqual(self.bins.lo_edges.tolist(), [0.0, 1.0, 2.0, 3.0])
def test_range(self):
self.assertTupleEqual(self.bins.range, (0.0, 4.0))
def test_rates(self):
self.assertListEqual(self.bins.rates.tolist(), [0.0, 9.0, 16.0, 4.0])
def test_rate_uncertainty(self):
self.assertListEqual(self.bins.rate_uncertainty.tolist(),
[0.0, 3.0, 4.0, 2.0])
def test_size(self):
self.assertEqual(self.bins.size, 4)
def test_widths(self):
self.assertListEqual(self.bins.widths.tolist(), [1.0, 1.0, 1.0, 1.0])
def test_closest_edge(self):
# closest low edge
self.assertEqual(self.bins.closest_edge(0.7, which='low'), 0.0)
# closest high edge
self.assertEqual(self.bins.closest_edge(0.3, which='high'), 1.0)
# closest edge
self.assertEqual(self.bins.closest_edge(0.3, which='either'), 0.0)
def test_slice(self):
# middle slice
bins2 = self.bins.slice(1.3, 2.3)
self.assertTupleEqual(bins2.range, (1.0, 3.0))
# slice below lower boundary
bins2 = self.bins.slice(-1.0, 2.3)
self.assertTupleEqual(bins2.range, (0.0, 3.0))
# slice above upper boundary
bins2 = self.bins.slice(1.3, 5.0)
self.assertTupleEqual(bins2.range, (1.0, 4.0))
# slice covering full range
bins2 = self.bins.slice(-1.0, 5.0)
self.assertTupleEqual(bins2.range, (0.0, 4.0))
# slice one bin
bins2 = self.bins.slice(2.1, 2.1)
self.assertTupleEqual(bins2.range, (2.0, 3.0))
# slice fully outside range
bins2 = self.bins.slice(-2.0, -1.0)
self.assertIsNone(bins2.range)
def test_init_errors(self):
with self.assertRaises(TypeError):
Bins(1.0, self.bins.lo_edges, self.bins.hi_edges)
with self.assertRaises(TypeError):
Bins(self.bins.counts, 1.0, self.bins.hi_edges)
with self.assertRaises(TypeError):
Bins(self.bins.counts, self.bins.lo_edges, 1.0)
with self.assertRaises(ValueError):
Bins(self.bins.counts[1:], self.bins.lo_edges, self.bins.hi_edges)
class TestExposureBins(unittest.TestCase):
def setUp(self):
counts = [0, 20, 12, 3, 20, 12]
exposure = [0.9, 0.8, 0.75, 0.75, 0.8, 0.8]
low = [0.0, 1.0, 2.5, 3.5, 4.5, 5.5]
high = [1.0, 2.0, 3.5, 4.5, 5.5, 6.5]
self.bins = ExposureBins(counts, low, high, exposure)
def test_exposure(self):
self.assertListEqual(self.bins.exposure.tolist(),
[0.9, 0.8, 0.75, 0.75, 0.8, 0.8])
def test_rates(self):
self.assertListEqual(self.bins.rates.tolist(),
[0.0, 25.0, 16.0, 4.0, 25.0, 15.0])
def test_rate_uncertainty(self):
uncert = self.bins.rate_uncertainty.tolist()
test = [0.0, 5.59, 4.62, 2.31, 5.59, 4.33]
for i in range(4):
self.assertAlmostEqual(uncert[i], test[i], places=2)
def test_contiguous_bins(self):
cont_bins = self.bins.contiguous_bins()
self.assertEqual(len(cont_bins), 2)
self.assertTupleEqual(cont_bins[0].range, (0.0, 2.0))
self.assertTupleEqual(cont_bins[1].range, (2.5, 6.5))
self.assertEqual(len(cont_bins[0].contiguous_bins()), 1)
def test_rebin(self):
# rebin full range
rebinned = self.bins.rebin(combine_by_factor, 2)
self.assertEqual(rebinned.size, 3)
self.assertListEqual(rebinned.hi_edges.tolist(), [2.0, 4.5, 6.5])
self.assertListEqual(rebinned.lo_edges.tolist(), [0.0, 2.5, 4.5])
self.assertListEqual(rebinned.counts.tolist(), [20, 15, 32])
exp = [1.7, 1.5, 1.6]
for i in range(3):
self.assertAlmostEqual(rebinned.exposure[i], exp[i], places=2)
# rebin from tstart through end of range
rebinned = self.bins.rebin(combine_by_factor, 2, tstart=2.7)
self.assertEqual(rebinned.size, 4)
self.assertListEqual(rebinned.hi_edges.tolist(), [1.0, 2.0, 4.5, 6.5])
self.assertListEqual(rebinned.lo_edges.tolist(), [0.0, 1.0, 2.5, 4.5])
self.assertListEqual(rebinned.counts.tolist(), [0, 20, 15, 32])
exp = [0.9, 0.8, 1.5, 1.6]
for i in range(4):
self.assertAlmostEqual(rebinned.exposure[i], exp[i], places=2)
# rebin from beginning of range through tstop
rebinned = self.bins.rebin(combine_by_factor, 2, tstop=1.7)
self.assertEqual(rebinned.size, 5)
self.assertListEqual(rebinned.hi_edges.tolist(), [2.0, 3.5, 4.5, 5.5, 6.5])
self.assertListEqual(rebinned.lo_edges.tolist(), [0.0, 2.5, 3.5, 4.5, 5.5])
self.assertListEqual(rebinned.counts.tolist(), [20, 12, 3, 20, 12])
exp = [1.7, 0.75, 0.75, 0.8, 0.8]
for i in range(5):
self.assertAlmostEqual(rebinned.exposure[i], exp[i], places=2)
# rebin middle
rebinned = self.bins.rebin(combine_by_factor, 2, tstart=0.5, tstop=3.7)
self.assertEqual(rebinned.size, 4)
self.assertListEqual(rebinned.hi_edges.tolist(), [2.0, 4.5, 5.5, 6.5])
self.assertListEqual(rebinned.lo_edges.tolist(), [0.0, 2.5, 4.5, 5.5])
self.assertListEqual(rebinned.counts.tolist(), [20, 15, 20, 12])
exp = [1.7, 1.5, 0.8, 0.8]
for i in range(4):
self.assertAlmostEqual(rebinned.exposure[i], exp[i], places=2)
# rebin outside range
rebinned = self.bins.rebin(combine_by_factor, 2, tstart=7.0, tstop=10.)
self.assertEqual(rebinned.size, 6)
self.assertListEqual(rebinned.hi_edges.tolist(), [1.0, 2.0, 3.5, 4.5, 5.5, 6.5])
self.assertListEqual(rebinned.lo_edges.tolist(), [0.0, 1.0, 2.5, 3.5, 4.5, 5.5])
self.assertListEqual(rebinned.counts.tolist(), [0, 20, 12, 3, 20, 12])
exp = [0.9, 0.8, 0.75, 0.75, 0.8, 0.8]
for i in range(6):
self.assertAlmostEqual(rebinned.exposure[i], exp[i], places=2)
def test_slice(self):
# middle slice
bins2 = self.bins.slice(1.3, 2.7)
self.assertTupleEqual(bins2.range, (1.0, 3.5))
# slice below lower boundary
bins2 = self.bins.slice(-1.0, 2.7)
self.assertTupleEqual(bins2.range, (0.0, 3.5))
# slice above upper boundary
bins2 = self.bins.slice(1.3, 7.0)
self.assertTupleEqual(bins2.range, (1.0, 6.5))
# slice covering full range
bins2 = self.bins.slice(-1.0, 7.0)
self.assertTupleEqual(bins2.range, (0.0, 6.5))
# slice one bin
bins2 = self.bins.slice(1.9, 1.9)
self.assertTupleEqual(bins2.range, (1.0, 2.0))
# slice fully outside range
bins2 = self.bins.slice(-2.0, -1.0)
self.assertIsNone(bins2.range)
def test_merge(self):
counts = [5, 7, 8]
exposure = [0.9, 0.9, 0.9]
# merge at high end
low = [6.5, 7.5, 8.5]
high = [7.5, 8.5, 9.5]
bins2 = ExposureBins(counts, low, high, exposure)
bins_merged = ExposureBins.merge([self.bins, bins2])
self.assertListEqual(bins_merged.hi_edges.tolist(), [1.0, 2.0, 3.5, 4.5,
5.5, 6.5, 7.5, 8.5,
9.5])
self.assertListEqual(bins_merged.lo_edges.tolist(), [0.0, 1.0, 2.5, 3.5,
4.5, 5.5, 6.5, 7.5,
8.5])
# flip order
bins_merged = ExposureBins.merge([bins2, self.bins])
self.assertListEqual(bins_merged.hi_edges.tolist(), [1.0, 2.0, 3.5, 4.5,
5.5, 6.5, 7.5, 8.5,
9.5])
self.assertListEqual(bins_merged.lo_edges.tolist(), [0.0, 1.0, 2.5, 3.5,
4.5, 5.5, 6.5, 7.5,
8.5])
# merge at low end
low = [-3.0, -2.0, -1.0]
high = [-2.0, -1.0, 0.0]
bins2 = ExposureBins(counts, low, high, exposure)
bins_merged = ExposureBins.merge([self.bins, bins2])
self.assertListEqual(bins_merged.hi_edges.tolist(), [-2.0, -1.0, 0.0,
1.0, 2.0, 3.5, 4.5,
5.5, 6.5])
self.assertListEqual(bins_merged.lo_edges.tolist(), [-3.0, -2.0, -1.0,
0.0, 1.0, 2.5, 3.5,
4.5, 5.5])
# overlapping merge (not allowed)
low = [-1.5, -0.5, 0.5]
high = [-0.5, 0.5, 1.5]
bins2 = ExposureBins(counts, low, high, exposure)
with self.assertRaises(ValueError):
bins_merged = ExposureBins.merge([self.bins, bins2])
with self.assertRaises(ValueError):
bins_merged = ExposureBins.merge([bins2, self.bins])
def test_sum(self):
# same exposure
bins2 = ExposureBins(self.bins.counts, self.bins.lo_edges,
self.bins.hi_edges, self.bins.exposure)
bins_summed = ExposureBins.sum([self.bins, bins2])
self.assertListEqual(bins_summed.counts.tolist(), [0, 40, 24, 6, 40, 24])
self.assertListEqual(bins_summed.exposure.tolist(), [0.9, 0.8, 0.75,
0.75, 0.8, 0.8])
# different exposure
exposure = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0]
bins2 = ExposureBins(self.bins.counts, self.bins.lo_edges,
self.bins.hi_edges, exposure)
bins_summed = ExposureBins.sum([self.bins, bins2])
self.assertListEqual(bins_summed.counts.tolist(), [0, 40, 24, 6, 40, 24])
self.assertListEqual(bins_summed.exposure.tolist(),
[0.95, 0.9, 0.875, 0.875, 0.9, 0.9])
# wrong number of bins
bins2 = ExposureBins(self.bins.counts[1:], self.bins.lo_edges[1:],
self.bins.hi_edges[1:], self.bins.exposure[1:])
with self.assertRaises(AssertionError):
bins_summed = ExposureBins.sum([self.bins, bins2])
# non-matching bin edges
bins2 = ExposureBins(self.bins.counts, self.bins.lo_edges+0.1,
self.bins.hi_edges+0.1, self.bins.exposure)
with self.assertRaises(AssertionError):
bins_summed = ExposureBins.sum([self.bins, bins2])
def test_init_errors(self):
with self.assertRaises(TypeError):
ExposureBins(self.bins.counts, self.bins.lo_edges,
self.bins.hi_edges, 1.0)
with self.assertRaises(ValueError):
ExposureBins(self.bins.counts, self.bins.lo_edges,
self.bins.hi_edges, self.bins.exposure[1:])
class TestChannelBins(unittest.TestCase):
def setUp(self):
counts = [20, 50, 17, 3, 0, 3]
chan_nums = [0, 1, 3, 4, 5, 6]
exposure = 10.0
self.bins = ChannelBins.create(counts, chan_nums, exposure)
def test_chan_nums(self):
self.assertListEqual(self.bins.chan_nums.tolist(), [0, 1, 3, 4, 5, 6])
def test_contiguous_bins(self):
cont_bins = self.bins.contiguous_bins()
self.assertEqual(len(cont_bins), 2)
self.assertTupleEqual(cont_bins[0].range, (0, 1))
self.assertTupleEqual(cont_bins[1].range, (3, 6))
self.assertEqual(len(cont_bins[0].contiguous_bins()), 1)
def test_rebin(self):
# rebin full range
rebinned = self.bins.rebin(combine_by_factor, 2)
self.assertEqual(rebinned.size, 3)
self.assertListEqual(rebinned.chan_nums.tolist(), [0, 3, 5])
self.assertListEqual(rebinned.counts.tolist(), [70, 20, 3])
self.assertListEqual(rebinned.exposure.tolist(), [20.0, 20.0, 20.0])
# rebin from chan_min through end of range
rebinned = self.bins.rebin(combine_by_factor, 2, chan_min=3)
self.assertEqual(rebinned.size, 4)
self.assertListEqual(rebinned.chan_nums.tolist(), [0, 1, 3, 5])
self.assertListEqual(rebinned.counts.tolist(), [20, 50, 20, 3])
self.assertListEqual(rebinned.exposure.tolist(), [10.0, 10.0, 20.0, 20.0])
# rebin from beginning of range through chan_max
rebinned = self.bins.rebin(combine_by_factor, 2, chan_max=4)
self.assertEqual(rebinned.size, 4)
self.assertListEqual(rebinned.chan_nums.tolist(), [0, 3, 5, 6])
self.assertListEqual(rebinned.counts.tolist(), [70, 20, 0, 3])
self.assertListEqual(rebinned.exposure.tolist(), [20.0, 20.0, 10.0, 10.0])
# rebin middle
rebinned = self.bins.rebin(combine_by_factor, 3, chan_min=3, chan_max=5)
self.assertEqual(rebinned.size, 4)
self.assertListEqual(rebinned.chan_nums.tolist(), [0, 1, 3, 6])
self.assertListEqual(rebinned.counts.tolist(), [20, 50, 20, 3])
self.assertListEqual(rebinned.exposure.tolist(), [10.0, 10.0, 30.0, 10.0])
# rebin outside range
rebinned = self.bins.rebin(combine_by_factor, 2, chan_min=7, chan_max=10)
self.assertEqual(rebinned.size, 6)
self.assertListEqual(rebinned.chan_nums.tolist(), [0, 1, 3, 4, 5, 6])
self.assertListEqual(rebinned.counts.tolist(), [20, 50, 17, 3, 0, 3])
self.assertListEqual(rebinned.exposure.tolist(), [10.0]*6)
def test_range(self):
self.assertTupleEqual(self.bins.range, (0, 6))
def test_slice(self):
# middle slice
bins2 = self.bins.slice(3, 4)
self.assertTupleEqual(bins2.range, (3, 4))
# slice below lower boundary
bins2 = self.bins.slice(-1, 3)
self.assertTupleEqual(bins2.range, (0, 3))
# slice above upper boundary
bins2 = self.bins.slice(4, 7)
self.assertTupleEqual(bins2.range, (4, 6))
# slice covering full range
bins2 = self.bins.slice(-1, 7)
self.assertTupleEqual(bins2.range, (0, 6))
# slice one bin
bins2 = self.bins.slice(3, 3)
self.assertTupleEqual(bins2.range, (3, 3))
# slice fully outside range
bins2 = self.bins.slice(-2, -1)
self.assertIsNone(bins2.range)
def test_merge(self):
counts = [5, 7, 8]
exposure = [0.9, 0.9, 0.9]
# merge at high end
chan_nums = [7, 8, 9]
bins2 = ChannelBins.create(counts, chan_nums, exposure)
bins_merged = ChannelBins.merge([self.bins, bins2])
self.assertListEqual(bins_merged.chan_nums.tolist(), [0, 1, 3, 4, 5, 6,
7, 8, 9])
# flip order
bins_merged = ChannelBins.merge([bins2, self.bins])
self.assertListEqual(bins_merged.chan_nums.tolist(), [0, 1, 3, 4, 5, 6,
7, 8, 9])
# merge at low end
bins3 = ChannelBins.create([2,3,4], [4,5,6], [0.8, 0.8, 0.8])
bins_merged = ChannelBins.merge([bins2, bins3])
self.assertListEqual(bins_merged.chan_nums.tolist(), [4, 5, 6, 7, 8, 9])
# overlapping merge (not allowed)
bins2 = ChannelBins.create(counts, [5,6,7], exposure)
with self.assertRaises(ValueError):
bins_merged = ChannelBins.merge([self.bins, bins2])
with self.assertRaises(ValueError):
bins_merged = ChannelBins.merge([bins2, self.bins])
def test_sum(self):
# same exposure
bins2 = ChannelBins.create(self.bins.counts, self.bins.chan_nums,
self.bins.exposure)
bins_summed = ChannelBins.sum([self.bins, bins2])
self.assertListEqual(bins_summed.counts.tolist(), [40, 100, 34, 6, 0, 6])
self.assertListEqual(bins_summed.exposure.tolist(), [10.0]*6)
# different exposure
exposure = [1.0] * 6
bins2 = ChannelBins.create(self.bins.counts, self.bins.chan_nums,
exposure)
bins_summed = ChannelBins.sum([self.bins, bins2])
self.assertListEqual(bins_summed.counts.tolist(), [40, 100, 34, 6, 0, 6])
self.assertListEqual(bins_summed.exposure.tolist(), [5.5]*6)
# wrong number of bins
bins2 = ChannelBins.create(self.bins.counts[1:], self.bins.chan_nums[1:],
self.bins.exposure[1:])
with self.assertRaises(AssertionError):
bins_summed = ChannelBins.sum([self.bins, bins2])
# non-matching bin edges
bins2 = ChannelBins.create(self.bins.counts, self.bins.chan_nums + 1,
self.bins.exposure)
with self.assertRaises(AssertionError):
bins_summed = ChannelBins.sum([self.bins, bins2])
def test_init_errors(self):
with self.assertRaises(ValueError):
ChannelBins.create(self.bins.counts, self.bins.chan_nums[1:],
self.bins.exposure)
with self.assertRaises(TypeError):
ChannelBins.create(self.bins.counts, self.bins.chan_nums[0],
self.bins.exposure)
class TestTimeBins(unittest.TestCase):
def test_init(self):
counts = [0, 20, 12, 3]
exposure = [0.9, 0.8, 0.75, 0.75]
low = [0.0, 1.0, 2.5, 3.5]
high = [1.0, 2.0, 3.5, 4.5]
bins = TimeBins(counts, low, high, exposure)
self.assertIsInstance(bins, TimeBins)
class TestEnergyBins(unittest.TestCase):
def setUp(self):
counts = [20, 50, 17, 3, 0]
low = [10., 50., 180., 320., 500.]
high = [50., 180., 320., 500., 1000.]
exposure = 10.0
self.bins = EnergyBins(counts, low, high, exposure)
def test_centroids(self):
vals = [22.36, 94.87, 240., 400., 707.11]
centroids = self.bins.centroids
for i in range(4):
self.assertAlmostEqual(centroids[i], vals[i], places=2)
def test_rates_per_kev(self):
vals = [0.050, 0.038, 0.012, 0.002, 0.0]
r = self.bins.rates_per_kev
for i in range(4):
self.assertAlmostEqual(r[i], vals[i], places=3)
def test_rate_uncertainty_per_kev(self):
vals = [0.0112, 0.0054, 0.0029, 0.0010, 0.0]
u = self.bins.rate_uncertainty_per_kev
for i in range(4):
self.assertAlmostEqual(u[i], vals[i], places=3)
def test_rebin(self):
rebinned = self.bins.rebin(combine_by_factor, 2, emax=500.0)
self.assertEqual(rebinned.size, 3)
self.assertListEqual(rebinned.hi_edges.tolist(), [180., 500., 1000.])
self.assertListEqual(rebinned.lo_edges.tolist(), [10., 180., 500.])
self.assertListEqual(rebinned.counts.tolist(), [70, 20, 0])
self.assertListEqual(rebinned.exposure.tolist(), [10.0]*3)
def test_sum(self):
# same exposure
bins2 = EnergyBins(self.bins.counts, self.bins.lo_edges,
self.bins.hi_edges, self.bins.exposure)
bins_summed = EnergyBins.sum([self.bins, bins2])
self.assertListEqual(bins_summed.counts.tolist(), [40, 100, 34, 6, 0])
self.assertListEqual(bins_summed.exposure.tolist(), [20.0]*5)
# wrong number of bins
bins2 = EnergyBins(self.bins.counts[1:], self.bins.lo_edges[1:],
self.bins.hi_edges[1:], self.bins.exposure[1:])
with self.assertRaises(AssertionError):
bins_summed = EnergyBins.sum([self.bins, bins2])
# non-matching bin edges
bins2 = EnergyBins(self.bins.counts, self.bins.lo_edges+0.1,
self.bins.hi_edges+0.1, self.bins.exposure)
with self.assertRaises(AssertionError):
bins_summed = EnergyBins.sum([self.bins, bins2])
class TestTimeChannelBins(unittest.TestCase):
def setUp(self):
counts = [[50, 5, 10], [100, 10, 20], [10, 1, 2], [20, 2, 4]]
tstart = [0.0, 1.0, 3.0, 4.0]
tstop = [1.0, 2.0, 4.0, 5.0]
exposure = [1] * 4
chan_nums = [0, 1, 3]
self.bins = TimeChannelBins(counts, tstart, tstop, exposure, chan_nums)
def test_chan_nums(self):
self.assertListEqual(self.bins.chan_nums.tolist(), [0, 1, 3])
def test_channel_range(self):
self.assertTupleEqual(self.bins.channel_range, (0, 3))
def test_counts(self):
self.assertListEqual(self.bins.counts[:,0].tolist(), [50, 100, 10, 20])
self.assertListEqual(self.bins.counts[:,1].tolist(), [5, 10, 1, 2])
self.assertListEqual(self.bins.counts[:,2].tolist(), [10, 20, 2, 4])
def test_count_uncertainty(self):
uncert = self.bins.count_uncertainty
vals = [7.07, 10., 3.16, 4.47]
for i in range(4):
self.assertAlmostEqual(uncert[i,0], vals[i], 2)
vals = [2.24, 3.16, 1.0, 1.41]
for i in range(4):
self.assertAlmostEqual(uncert[i,1], vals[i], 2)
vals = [3.16, 4.47, 1.41, 2.]
for i in range(4):
self.assertAlmostEqual(uncert[i,2], vals[i], 2)
def test_exposure(self):
self.assertListEqual(self.bins.exposure.tolist(), [1.0]*4)
def test_num_chans(self):
self.assertEqual(self.bins.num_chans, 3)
def test_num_times(self):
self.assertEqual(self.bins.num_times, 4)
def test_quality(self):
self.assertListEqual(self.bins.quality.tolist(), [0]*4)
def test_rates(self):
self.assertListEqual(self.bins.rates[:,0].tolist(), [50., 100., 10., 20.])
self.assertListEqual(self.bins.rates[:,1].tolist(), [5., 10., 1., 2.])
self.assertListEqual(self.bins.rates[:,2].tolist(), [10., 20., 2., 4.])
def test_rate_uncertainty(self):
uncert = self.bins.rate_uncertainty
vals = [7.07, 10., 3.16, 4.47]
for i in range(4):
self.assertAlmostEqual(uncert[i,0], vals[i], 2)
vals = [2.24, 3.16, 1.0, 1.41]
for i in range(4):
self.assertAlmostEqual(uncert[i,1], vals[i], 2)
vals = [3.16, 4.47, 1.41, 2.]
for i in range(4):
self.assertAlmostEqual(uncert[i,2], vals[i], 2)
def test_size(self):
self.assertTupleEqual(self.bins.size, (4, 3))
def test_time_centroids(self):
self.assertListEqual(self.bins.time_centroids.tolist(),
[0.5, 1.5, 3.5, 4.5])
def test_time_range(self):
self.assertTupleEqual(self.bins.time_range, (0.0, 5.0))
def test_time_widths(self):
self.assertListEqual(self.bins.time_widths.tolist(), [1.0]*4)
def test_tstart(self):
self.assertListEqual(self.bins.tstart.tolist(), [0.0, 1.0, 3.0, 4.0])
def test_tstop(self):
self.assertListEqual(self.bins.tstop.tolist(), [1.0, 2.0, 4.0, 5.0])
def test_apply_ebounds(self):
emin = [10.0, 50.0, 300.0]
emax = [50.0, 150., 500.0]
ebounds = Ebounds.from_bounds(emin, emax)
teb = self.bins.apply_ebounds(ebounds)
assert isinstance(teb, TimeEnergyBins)
self.assertListEqual(teb.counts.flatten().tolist(),
self.bins.counts.flatten().tolist())
self.assertListEqual(teb.tstart.tolist(), self.bins.tstart.tolist())
self.assertListEqual(teb.tstop.tolist(), self.bins.tstop.tolist())
self.assertListEqual(teb.exposure.tolist(), self.bins.exposure.tolist())
self.assertListEqual(teb.emin.tolist(), emin)
self.assertListEqual(teb.emax.tolist(), emax)
with self.assertRaises(TypeError):
self.bins.apply_ebounds(0)
with self.assertRaises(ValueError):
ebounds = Ebounds.from_bounds(emin[1:], emax[1:])
self.bins.apply_ebounds(ebounds)
def test_closest_time_edge(self):
# closest low edge
self.assertEqual(self.bins.closest_time_edge(0.3, which='low'), 0.0)
# closest high edge
self.assertEqual(self.bins.closest_time_edge(0.3, which='high'), 1.0)
# closest edge
self.assertEqual(self.bins.closest_time_edge(0.3, which='either'), 0.0)
def test_contiguous_channel_bins(self):
cont_bins = self.bins.contiguous_channel_bins()
self.assertEqual(len(cont_bins), 2)
self.assertTupleEqual(cont_bins[0].channel_range, (0, 1))
self.assertTupleEqual(cont_bins[1].channel_range, (3, 3))
self.assertEqual(len(cont_bins[0].contiguous_channel_bins()), 1)
def test_contiguous_time_bins(self):
cont_bins = self.bins.contiguous_time_bins()
self.assertEqual(len(cont_bins), 2)
self.assertTupleEqual(cont_bins[0].time_range, (0., 2.))
self.assertTupleEqual(cont_bins[1].time_range, (3., 5.))
self.assertEqual(len(cont_bins[0].contiguous_time_bins()), 1)
def test_get_exposure(self):
# full range
self.assertEqual(self.bins.get_exposure(), 4.0)
# one time range
self.assertEqual(self.bins.get_exposure(time_ranges=(2.0, 4.0)), 2.0)
# two time ranges
self.assertEqual(self.bins.get_exposure(time_ranges=[(0.0, 1.0),
(3.0, 4.0)]), 2.0)
# offset edges, no scaling
self.assertEqual(self.bins.get_exposure(time_ranges=(2.5, 4.0)), 2.0)
# offset edges, with scaling
self.assertEqual(self.bins.get_exposure(time_ranges=(2.5, 4.0),
scale=True), 1.5)
def test_integrate_channels(self):
# full range
bins = self.bins.integrate_channels()
self.assertIsInstance(bins, TimeBins)
self.assertListEqual(bins.counts.tolist(), [65, 130, 13, 26])
self.assertListEqual(bins.exposure.tolist(), [1.0]*4)
self.assertListEqual(bins.lo_edges.tolist(), [0.0, 1.0, 3.0, 4.0])
self.assertListEqual(bins.hi_edges.tolist(), [1.0, 2.0, 4.0, 5.0])
# set emin
bins = self.bins.integrate_channels(chan_min=1)
self.assertListEqual(bins.counts.tolist(), [15, 30, 3, 6])
self.assertListEqual(bins.exposure.tolist(), [1.0]*4)
self.assertListEqual(bins.lo_edges.tolist(), [0.0, 1.0, 3.0, 4.0])
self.assertListEqual(bins.hi_edges.tolist(), [1.0, 2.0, 4.0, 5.0])