pandas求期望和标准差
时间: 2023-08-19 12:14:08 浏览: 124
Python中的投资组合优化和量化战略资产配置
在Pandas中,可以使用mean()函数来求期望,使用std()函数来求标准差。\[3\] 例如,对于一个Series或DataFrame数据类型,可以使用以下代码来求期望和标准差:
期望:
```python
data.mean()
```
标准差:
```python
data.std()
```
其中,data是指你要计算期望和标准差的数据。请注意,这些函数会自动忽略NaN值。
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