---
title: roc
description: OpenBB SDK Function
---

# roc

A momentum oscillator, which measures the percentage change between the current

Source Code: [[link](https://github.com/OpenBB-finance/OpenBBTerminal/tree/main/openbb_terminal/forecast/forecast_model.py#L279)]

```python
openbb.forecast.roc(dataset: pd.DataFrame, target_column: str = "close", period: int = 10)
```

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## Parameters

| Name | Type | Description | Default | Optional |
| ---- | ---- | ----------- | ------- | -------- |
| dataset | pd.DataFrame | The dataset you wish to calculate with | None | False |
| target_column | str | The column you wish to add the ROC to | close | True |
| period | int | Time Span | 10 | True |


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## Returns

| Type | Description |
| ---- | ----------- |
| pd.DataFrame | Dataframe with added ROC column |
---