def test_nested_dict_frame_constructor(self):
rng = pd.period_range('1/1/2000', periods=5)
df = DataFrame(randn(10, 5), columns=rng)
data = {}
for col in df.columns:
for row in df.index:
data.setdefault(col, {})[row] = df.get_value(row, col)
result = DataFrame(data, columns=rng)
assert_frame_equal(result, df)
data = {}
for col in df.columns:
for row in df.index:
data.setdefault(row, {})[col] = df.get_value(row, col)
result = DataFrame(data, index=rng).T
assert_frame_equal(result, df)
test_constructors.py 文件源码
python
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