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Update 第11章 时间序列.md #8

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Update 第11章 时间序列.md #8

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9 changes: 4 additions & 5 deletions 第11章 时间序列.md
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Original file line number Diff line number Diff line change
Expand Up @@ -1510,12 +1510,11 @@ Freq: 5T, dtype: int64

传入的频率将会以“5分钟”的增量定义面元边界。默认情况下，面元的右边界是包含的，因此00:00到00:05的区间中是包含00:05的。传入closed='left'会让区间以左边界闭合：
```python
In [217]: ts.resample('5min', closed='right').sum()
In [217]: ts.resample('5min', closed='left').sum()
Out[217]:
1999-12-31 23:55:00 0
2000-01-01 00:00:00 15
2000-01-01 00:05:00 40
2000-01-01 00:10:00 11
2000-01-01 00:00:00 10
2000-01-01 00:05:00 35
2000-01-01 00:10:00 21
Freq: 5T, dtype: int64
```

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