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Merged
merged 3 commits into from
Jul 13, 2024
Merged

Update timeplot.py #1030

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70d9761
Update timeplot.py
diemilio Jul 10, 2024
d15e21f
add regression test
murrayrm Jul 13, 2024
937783a
fix line length overflow
murrayrm Jul 13, 2024
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11 changes: 9 additions & 2 deletions control/tests/timeplot_test.py
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Original file line number Diff line number Diff line change
Expand Up @@ -258,7 +258,7 @@ def test_combine_time_responses():
sys_mimo = ct.rss(4, 2, 2)
timepts = np.linspace(0, 10, 100)

# Combine two response with ntrace = 0
# Combine two responses with ntrace = 0
U = np.vstack([np.sin(timepts), np.cos(2*timepts)])
resp1 = ct.input_output_response(sys_mimo, timepts, U)

Expand Down Expand Up @@ -293,6 +293,7 @@ def test_combine_time_responses():
combresp4 = ct.combine_time_responses(
[resp1, resp2, resp3], trace_labels=labels)
assert combresp4.trace_labels == labels
assert combresp4.trace_types == [None, None, 'step', 'step']

# Automatically generated trace label names and types
resp5 = ct.step_response(sys_mimo, timepts)
Expand All @@ -302,7 +303,13 @@ def test_combine_time_responses():
combresp5 = ct.combine_time_responses([resp1, resp5])
assert combresp5.trace_labels == [resp1.title] + \
["test, trace 0", "test, trace 1"]
assert combresp4.trace_types == [None, None, 'step', 'step']
assert combresp5.trace_types == [None, None, None]

# ntraces = 0 with trace_types != None
# https://github.com/python-control/python-control/issues/1025
resp6 = ct.forced_response(sys_mimo, timepts, U)
combresp6 = ct.combine_time_responses([resp1, resp6])
assert combresp6.trace_types == [None, 'forced']

with pytest.raises(ValueError, match="must have the same number"):
resp = ct.step_response(ct.rss(4, 2, 3), timepts)
Expand Down
3 changes: 2 additions & 1 deletion control/timeplot.py
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Original file line number Diff line number Diff line change
Expand Up @@ -738,7 +738,8 @@ def combine_time_responses(response_list, trace_labels=None, title=None):
if generate_trace_labels:
trace_labels.append(response.title)
trace_types.append(
None if response.trace_types is None else response.types[0])
None if response.trace_types is None
else response.trace_types[0])

else:
# Save the data
Expand Down
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