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Change str of ResultDict to print out repeated measurements #6468

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merged 2 commits into from
Feb 16, 2024
Merged

Change str of ResultDict to print out repeated measurements #6468

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a5bcf12
Change str of ResultDict to print out repeated measurements
dstrain115 Feb 16, 2024
159d324
Merge branch 'main' into result_dict_reprs
dstrain115 Feb 16, 2024
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14 changes: 14 additions & 0 deletions cirq-core/cirq/study/result.py
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,18 @@ def _keyed_repeated_bitstrings(vals: Mapping[str, np.ndarray]) -> str:
return '\n'.join(keyed_bitstrings)


def _keyed_repeated_records(vals: Mapping[str, np.ndarray]) -> str:
keyed_bitstrings = []
for key in sorted(vals.keys()):
reps = vals[key]
n = reps.shape[2]
num_records = reps.shape[1]
for j in range(num_records):
all_bits = ', '.join(_bitstring(reps[:, j, i]) for i in range(n))
keyed_bitstrings.append(f'{key}={all_bits}')
return '\n'.join(keyed_bitstrings)


def _key_to_str(key: TMeasurementKey) -> str:
if isinstance(key, str):
return key
Expand Down Expand Up @@ -388,6 +400,8 @@ def _repr_pretty_(self, p: Any, cycle: bool) -> None:
p.text(str(self))

def __str__(self) -> str:
if self._records:
return _keyed_repeated_records(self.records)
return _keyed_repeated_bitstrings(self.measurements)

def _json_dict_(self):
Expand Down
6 changes: 6 additions & 0 deletions cirq-core/cirq/study/result_test.py
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Expand Up @@ -127,6 +127,12 @@ def test_str():
)
assert str(result) == 'ab=13579, 2 4 6 8 10\nc=01234'

result = cirq.ResultDict(records={'c': np.array([[[True], [True]]])})
assert str(result) == 'c=1\nc=1'

result = cirq.ResultDict(records={'c': np.array([[[True, False], [False, True]]])})
assert str(result) == 'c=1, 0\nc=0, 1'


def test_df():
result = cirq.ResultDict(
Expand Down