```text
usage: rolling [-l N_LENGTH] [--export {csv,json,xlsx}] [-h]
```

Rolling mean and std deviation, To learn more on this topic, visit: https://www.mathsisfun.com/data/standard-normal-distribution.html

```
optional arguments:
  -l N_LENGTH, --length N_LENGTH
                        Window length (default: 14)
  --export {csv,json,xlsx}
                        Export dataframe data to csv,json,xlsx file (default: )
  -h, --help            show this help message (default: False)
```

![rolling](https://user-images.githubusercontent.com/46355364/154308175-bb244d55-a6e0-4d6e-80f4-b3937dcd8ed4.png)