> For the complete documentation index, see [llms.txt](https://docs.sov.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sov.ai/api-reference/extensions/fractional-differencing.md).

# Fractional Differencing

**Module:** `sovai.extensions.fractional_differencing`

## Functions

### `frac_weights_5()`

```python
def frac_weights_5(d: float, m: int) -> np.ndarray
```

**Returns:** `np.ndarray`

***

### `fractional_diff()`

```python
def fractional_diff(series, d, m)
```

***