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BUG: No error raised in to_stata() for -np.inf #45350 #45360

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merged 3 commits into from
Jan 16, 2022
Merged

BUG: No error raised in to_stata() for -np.inf #45350 #45360

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c52c237
BUG: No error raised in to_stata() for -np.inf #45350
flcong Jan 14, 2022
ada0664
BUG: Update #45350
flcong Jan 14, 2022
3f195ea
BUG: Update #45350
flcong Jan 14, 2022
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5 changes: 3 additions & 2 deletions pandas/io/stata.py
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Original file line number Diff line number Diff line change
Expand Up @@ -625,10 +625,11 @@ def _cast_to_stata_types(data: DataFrame) -> DataFrame:
if data[col].max() >= 2 ** 53 or data[col].min() <= -(2 ** 53):
ws = precision_loss_doc.format("int64", "float64")
elif dtype in (np.float32, np.float64):
value = data[col].max()
value = np.abs(data[col]).max()
if np.isinf(value):
raise ValueError(
f"Column {col} has a maximum value of infinity which is outside "
f"Column {col} has a maximum value of infinity "
"or a minimum value of -infinity which is outside "
"the range supported by Stata."
)
if dtype == np.float32 and value > float32_max:
Expand Down
30 changes: 26 additions & 4 deletions pandas/tests/io/test_stata.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1475,8 +1475,19 @@ def test_out_of_range_double(self):

df.loc[2, "ColumnTooBig"] = np.inf
msg = (
"Column ColumnTooBig has a maximum value of infinity which is outside "
"the range supported by Stata"
"Column ColumnTooBig has a maximum value of infinity "
"or a minimum value of -infinity which is outside "
"the range supported by Stata."
)
with pytest.raises(ValueError, match=msg):
with tm.ensure_clean() as path:
df.to_stata(path)

df.loc[2, "ColumnTooBig"] = -np.inf
msg = (
"Column ColumnTooBig has a maximum value of infinity "
"or a minimum value of -infinity which is outside "
"the range supported by Stata."
)
with pytest.raises(ValueError, match=msg):
with tm.ensure_clean() as path:
Expand Down Expand Up @@ -1509,8 +1520,19 @@ def test_out_of_range_float(self):

original.loc[2, "ColumnTooBig"] = np.inf
msg = (
"Column ColumnTooBig has a maximum value of infinity which "
"is outside the range supported by Stata"
"Column ColumnTooBig has a maximum value of infinity "
"or a minimum value of -infinity which is outside "
"the range supported by Stata."
)
with pytest.raises(ValueError, match=msg):
with tm.ensure_clean() as path:
original.to_stata(path)

original.loc[2, "ColumnTooBig"] = -np.inf
msg = (
"Column ColumnTooBig has a maximum value of infinity "
"or a minimum value of -infinity which is outside "
"the range supported by Stata."
)
with pytest.raises(ValueError, match=msg):
with tm.ensure_clean() as path:
Expand Down