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Benjamin Moody
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Test reading fixed-layout multi-frequency signals.
This test case uses an excerpt of record mimicdb/041/, which is a fixed-layout record with three signals at 500 Hz (four samples per frame) and four signals at 125 Hz (one sample per frame).
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‎sample-data/multi-segment/041s/041s.hea

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041s/2 7 125 2000 8:26:04 26/10/1994
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041s01 1000
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041s02 1000

‎sample-data/multi-segment/041s/041s01.dat

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‎sample-data/multi-segment/041s/041s01.hea

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041s01 7 125 1000 8:26:04 26/10/1994
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041s01.dat 212x4 2000 12 0 168 -2716 0 III
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041s01.dat 212x4 2000 12 0 2 -25019 0 I
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041s01.dat 212x4 2000 12 0 155 -12467 0 V
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041s01.dat 212 20(-1600)/mmHg 12 0 -242 -18875 0 ABP
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041s01.dat 212 80(-1600)/mmHg 12 0 706 -5338 0 PAP
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041s01.dat 212 2000 12 0 -841 30145 0 PLETH
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041s01.dat 212 2000 12 0 401 3712 0 RESP
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#Produced by xform from record mimicdb/041/04100001, beginning at s74000

‎sample-data/multi-segment/041s/041s02.dat

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‎sample-data/multi-segment/041s/041s02.hea

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041s02 7 125 1000 8:26:12 26/10/1994
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041s02.dat 212x4 2000 12 0 -103 -862 0 III
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041s02.dat 212x4 2000 12 0 -64 14967 0 I
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041s02.dat 212x4 2000 12 0 89 13162 0 V
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041s02.dat 212 20(-1600)/mmHg 12 0 -715 -21117 0 ABP
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041s02.dat 212 80(-1600)/mmHg 12 0 -583 -31770 0 PAP
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041s02.dat 212 2000 12 0 -840 -31041 0 PLETH
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041s02.dat 212 2000 12 0 -861 -31272 0 RESP
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#Produced by xform from record mimicdb/041/04100002, beginning at 0:0

‎tests/target-output/record-multi-fixed-d.gz

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‎tests/test_record.py

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@@ -596,6 +596,34 @@ def test_multi_fixed_c(self):
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np.testing.assert_equal(sig_round, sig_target)
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assert record.__eq__(record_named)
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def test_multi_fixed_d(self):
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"""
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Multi-segment, fixed layout, multi-frequency, selected channels
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Target file created with:
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rdsamp -r sample-data/multi-segment/041s/ -s 3 2 1 -H |
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cut -f 2- | sed s/-32768/-2048/ |
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gzip -9 -n > tests/target-output/record-multi-fixed-d.gz
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"""
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record = wfdb.rdrecord('sample-data/multi-segment/041s/041s',
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channels=[3, 2, 1], physical=False,
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smooth_frames=False)
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# Convert expanded to uniform array (high-resolution)
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sig = np.zeros((record.sig_len * 4, record.n_sig), dtype=int)
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for i, s in enumerate(record.e_d_signal):
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sig[:, i] = np.repeat(s, len(sig[:, i]) // len(s))
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sig_target = np.genfromtxt(
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'tests/target-output/record-multi-fixed-d.gz')
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record_named = wfdb.rdrecord('sample-data/multi-segment/041s/041s',
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channel_names=['ABP', 'V', 'I'],
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physical=False, smooth_frames=False)
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np.testing.assert_array_equal(sig, sig_target)
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assert record.__eq__(record_named)
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def test_multi_variable_a(self):
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"""
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Multi-segment, variable layout, selected duration, samples read

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