[1840] | 1 | import sys |
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| 2 | import os |
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| 3 | import shutil |
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[1600] | 4 | import datetime |
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[1903] | 5 | from nose.tools import * |
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[1840] | 6 | from asap import scantable, selector, mask_not |
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| 7 | from asap.logging import asaplog |
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[1903] | 8 | # no need for log messages |
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[1824] | 9 | asaplog.disable() |
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[1544] | 10 | |
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[1840] | 11 | def tempdir_setup(): |
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| 12 | os.makedirs("test_temp") |
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| 13 | |
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| 14 | def tempdir_teardown(): |
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| 15 | shutil.rmtree("test_temp", True) |
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| 16 | |
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| 17 | class TestScantable(object): |
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| 18 | def setup(self): |
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[1824] | 19 | s = scantable("data/MOPS.rpf", average=True) |
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| 20 | sel = selector() |
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| 21 | # make sure this order is always correct - in can be random |
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| 22 | sel.set_order(["SCANNO", "POLNO"]) |
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| 23 | s.set_selection(sel) |
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| 24 | self.st = s.copy() |
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[1725] | 25 | restfreqs = [86.243] # 13CO-1/0, SiO the two IF |
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| 26 | self.st.set_restfreqs(restfreqs,"GHz") |
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[1544] | 27 | |
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| 28 | def test_init(self): |
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| 29 | st = scantable("data/MOPS.rpf", average=False) |
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[1840] | 30 | assert_equal(st.ncycle(), 32) |
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[1544] | 31 | st = scantable("data/MOPS.rpf", average=True) |
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[1840] | 32 | assert_equal(st.ncycle(), 2) |
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[1544] | 33 | st = scantable("data/MOPS.rpf", unit="Jy") |
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[1840] | 34 | assert_equal(st.get_fluxunit(), "Jy") |
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[1544] | 35 | st = scantable("data/MOPS.rpf", unit="K") |
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[1840] | 36 | assert_equal(st.get_fluxunit(), "K") |
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| 37 | assert_raises(RuntimeError, scantable, "data/MOPS.rpf", unit="junk") |
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[1544] | 38 | st = scantable(["data/MOPS.rpf","data/MOPS.rpf"], average=False) |
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[1840] | 39 | assert_equal(st.nscan(), 4) |
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[1544] | 40 | |
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| 41 | def test_copy(self): |
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| 42 | st = self.st.copy() |
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[1840] | 43 | assert_not_equal(id(st), id(self.st)) |
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[1592] | 44 | |
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[1544] | 45 | def test_drop_scan(self): |
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| 46 | st = self.st.drop_scan([1]) |
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[1840] | 47 | assert_equal(st.nscan(), 1) |
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[1544] | 48 | |
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| 49 | def test_get_scan(self): |
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| 50 | st = self.st.get_scan([1]) |
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[1840] | 51 | assert_equal(st.nscan(), 1) |
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[1544] | 52 | st = self.st.get_scan("Orion_SiO_R") |
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[1840] | 53 | assert_equal(st.get_sourcename()[-1], "Orion_SiO_R") |
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| 54 | assert_equal(st.nscan(), 1) |
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[1544] | 55 | |
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| 56 | def test_get_spectrum(self): |
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| 57 | spec = self.st.get_spectrum(0) |
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[1840] | 58 | assert_almost_equal(max(spec), 215.279830933) |
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[1544] | 59 | |
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| 60 | def test_get_mask(self): |
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| 61 | spec = self.st.get_mask(0) |
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[1840] | 62 | assert_equal(len(spec), 4096) |
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[1592] | 63 | |
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[1544] | 64 | def test_set_spectrum(self): |
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| 65 | spec = [ 1.0 for i in range(self.st.nchan()) ] |
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| 66 | self.st.set_spectrum(spec, 0) |
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| 67 | spec1 = self.st.get_spectrum(0) |
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[1840] | 68 | assert_almost_equal(max(spec1), 1.0) |
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[1544] | 69 | |
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| 70 | def test_selection(self): |
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| 71 | sel = selector() |
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| 72 | sel.set_polarisations("YY") |
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| 73 | self.st.set_selection(sel) |
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[1903] | 74 | assert_equal(self.st.getpolnos(), [1]) |
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[1544] | 75 | sel1 = self.st.get_selection() |
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[1840] | 76 | assert_equal(sel1.get_pols(), [1]) |
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[1600] | 77 | self.st.set_selection(pols="XX") |
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[1903] | 78 | assert_equal(self.st.getpolnos(), [0]) |
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[1544] | 79 | |
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[1842] | 80 | |
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| 81 | def stats(self, key, value, mask=False): |
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| 82 | msk = None |
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| 83 | if mask: |
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| 84 | msk = self.st.create_mask([0,100], [3900,4096]) |
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| 85 | sval = self.st.stats(stat=key, mask=msk) |
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| 86 | assert_almost_equal(sval[0], value) |
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| 87 | |
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| 88 | def test_masked_stats(self): |
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| 89 | stats = { 'min': 113.767166138, |
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| 90 | 'max':128.21571350, 'sumsq':4180516.75, |
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| 91 | 'sum':35216.87890625, 'mean':118.5753479, |
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| 92 | 'var':15.75608253, 'stddev':3.9693932533, |
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| 93 | 'avdev':3.395271778, 'rms':118.6415405, |
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| 94 | 'median':117.5024261} |
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| 95 | for k,v in stats.items(): |
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| 96 | yield self.stats, k, v, True |
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| 97 | |
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[1544] | 98 | def test_stats(self): |
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| 99 | stats = { 'min': 113.767166138, |
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| 100 | 'max':215.279830933, 'sumsq':128759200.0, |
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| 101 | 'sum':720262.375, 'mean':175.845306396, |
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| 102 | 'var':513.95324707, 'stddev':22.6705360413, |
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[1592] | 103 | 'avdev':16.3966751099, 'rms':177.300170898, |
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| 104 | 'median':182.891845703} |
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[1842] | 105 | for k,v in stats.items(): |
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| 106 | yield self.stats, k, v |
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[1544] | 107 | |
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| 108 | def test_get_column_names(self): |
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[1592] | 109 | cnames = ['SCANNO', 'CYCLENO', 'BEAMNO', 'IFNO', |
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[1824] | 110 | 'POLNO', 'FREQ_ID', 'MOLECULE_ID', 'REFBEAMNO', 'FLAGROW', |
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[1592] | 111 | 'TIME', 'INTERVAL', 'SRCNAME', 'SRCTYPE', |
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[1544] | 112 | 'FIELDNAME', 'SPECTRA', 'FLAGTRA', 'TSYS', |
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[1592] | 113 | 'DIRECTION', 'AZIMUTH', 'ELEVATION', |
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| 114 | 'OPACITY', 'TCAL_ID', 'FIT_ID', |
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[1544] | 115 | 'FOCUS_ID', 'WEATHER_ID', 'SRCVELOCITY', |
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| 116 | 'SRCPROPERMOTION', 'SRCDIRECTION', |
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| 117 | 'SCANRATE'] |
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[1840] | 118 | assert_equal(self.st.get_column_names(), cnames) |
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[1544] | 119 | |
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[1600] | 120 | def test_get_tsys(self): |
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[1840] | 121 | assert_almost_equal(self.st.get_tsys()[0], 175.830429077) |
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[1600] | 122 | |
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| 123 | def test_get_time(self): |
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[1840] | 124 | assert_equal(self.st.get_time(0), '2008/03/12/09:32:50') |
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[1600] | 125 | dt = datetime.datetime(2008,3,12,9,32,50) |
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[1840] | 126 | assert_equal(self.st.get_time(0, True), dt) |
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[1600] | 127 | |
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| 128 | def test_get_inttime(self): |
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[1840] | 129 | assert_almost_equal(self.st.get_inttime()[0], 30.720016479) |
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[1600] | 130 | |
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| 131 | def test_get_sourcename(self): |
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[1840] | 132 | assert_equal(self.st.get_sourcename(0), 'Orion_SiO_R') |
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| 133 | assert_equal(self.st.get_sourcename(), |
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[1824] | 134 | ['Orion_SiO_R', 'Orion_SiO_R', |
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| 135 | 'Orion_SiO', 'Orion_SiO']) |
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[1600] | 136 | |
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| 137 | def test_get_azimuth(self): |
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[1840] | 138 | assert_almost_equal(self.st.get_azimuth()[0], 5.628767013) |
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[1600] | 139 | |
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| 140 | def test_get_elevation(self): |
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[1840] | 141 | assert_almost_equal(self.st.get_elevation()[0], 1.01711678504) |
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[1600] | 142 | |
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| 143 | def test_get_parangle(self): |
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[1840] | 144 | assert_almost_equal(self.st.get_parangle()[0], 2.5921990871) |
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[1600] | 145 | |
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| 146 | def test_get_direction(self): |
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[1840] | 147 | assert_equal(self.st.get_direction()[0], '05:35:14.5 -04.52.29.5') |
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[1600] | 148 | |
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| 149 | def test_get_directionval(self): |
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| 150 | dv = self.st.get_directionval()[0] |
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[1840] | 151 | assert_almost_equal(dv[0], 1.4627692699) |
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| 152 | assert_almost_equal(dv[1], -0.0850824415) |
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[1600] | 153 | |
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| 154 | def test_unit(self): |
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| 155 | self.st.set_unit('') |
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| 156 | self.st.set_unit('GHz') |
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| 157 | self.st.set_unit('km/s') |
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[1840] | 158 | assert_raises(RuntimeError, self.st.set_unit, 'junk') |
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| 159 | assert_equals(self.st.get_unit(), 'km/s') |
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[1600] | 160 | |
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[1592] | 161 | def test_average_pol(self): |
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| 162 | ap = self.st.average_pol() |
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[1840] | 163 | assert_equal(ap.npol(), 1) |
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[1544] | 164 | |
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[1600] | 165 | def test_drop_scan(self): |
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| 166 | s0 = self.st.drop_scan(1) |
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[1903] | 167 | assert_equal(s0.getscannos(), [0]) |
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[1600] | 168 | s1 = self.st.drop_scan([0]) |
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[1903] | 169 | assert_equal(s1.getscannos(), [1]) |
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[1592] | 170 | |
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[1725] | 171 | def test_flag(self): |
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| 172 | q = self.st.auto_quotient() |
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| 173 | q.set_unit('km/s') |
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| 174 | q0 = q.copy() |
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| 175 | q1 = q.copy() |
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| 176 | msk = q0.create_mask([-10,20]) |
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| 177 | q0.flag(mask=mask_not(msk)) |
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[1824] | 178 | q1.flag(mask=msk) |
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[1840] | 179 | assert_almost_equal(q0.stats(stat='max')[0], 95.62171936) |
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| 180 | assert_almost_equal(q1.stats(stat='max')[0], 2.66563416) |
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[1600] | 181 | |
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[1840] | 182 | @with_setup(tempdir_setup, tempdir_teardown) |
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| 183 | def test_save(self): |
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| 184 | fname = os.path.join("test_temp", 'scantable_test.%s') |
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| 185 | formats = [(fname % 'sdfits', 'SDFITS', True), |
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| 186 | (fname % 'ms', 'MS2', True), |
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| 187 | (fname % 'class.fits', 'CLASS', False), |
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| 188 | (fname % 'fits', 'FITS', False), |
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| 189 | (fname % 'txt', 'ASCII', False), |
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| 190 | ] |
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| 191 | for format in formats: |
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| 192 | yield self.save, format |
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| 193 | |
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| 194 | def save(self, args): |
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| 195 | fname = args[0] |
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| 196 | self.st.save(fname, args[1], True) |
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[1844] | 197 | # do some verification args[2] == True |
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[1840] | 198 | if args[-1]: |
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| 199 | s = scantable(fname) |
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| 200 | ds = self.st - s |
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| 201 | assert_equals(self.st.getpolnos(), s.getpolnos()) |
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| 202 | assert_equals(self.st.getscannos(), s.getscannos()) |
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| 203 | assert_equals(self.st.getifnos(), s.getifnos()) |
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| 204 | assert_equals(self.st.getbeamnos(), s.getbeamnos()) |
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[1844] | 205 | # see if the residual spectra are ~ 0.0 |
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[1840] | 206 | for spec in ds: |
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| 207 | assert_almost_equals(sum(spec)/len(spec), 0.0, 5) |
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[1925] | 208 | |
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| 209 | def test_auto_poly_baseline(self): |
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| 210 | q = self.st.auto_quotient() |
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| 211 | b = q.auto_poly_baseline(insitu=False) |
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| 212 | res_rms = (q-b).stats('rms') |
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| 213 | assert_almost_equals(res_rms[0], 0.38370, 5) |
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| 214 | assert_almost_equals(res_rms[1], 0.38780, 5) |
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| 215 | |
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| 216 | |
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| 217 | def test_poly_baseline(self): |
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| 218 | q = self.st.auto_quotient() |
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| 219 | msk = q.create_mask([0.0, 1471.0], [1745.0, 4095.0]) |
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| 220 | b = q.poly_baseline(order=0, mask=msk,insitu=False) |
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| 221 | res_rms = (q-b).stats('rms') |
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| 222 | assert_almost_equals(res_rms[0], 0.38346, 5) |
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| 223 | assert_almost_equals(res_rms[1], 0.38780, 5) |
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