---
title: acf
description: This page provides information about Auto-Correlation and Partial Auto-Correlation
  Functions for diff and diff diff forex data, including its usage and parameters.
keywords:
- Auto-Correlation Function
- Partial Auto-Correlation Function
- Forex data
- Data analysis
- Python acf
- Forex data analysis
- Data visualization
---

import HeadTitle from '@site/src/components/General/HeadTitle.tsx';

<HeadTitle title="forex/qa/acf - Reference | OpenBB Terminal Docs" />

Auto-Correlation and Partial Auto-Correlation Functions for diff and diff diff forex data

### Usage

```python
acf [-l LAGS]
```

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## Parameters

| Name | Description | Default | Optional | Choices |
| ---- | ----------- | ------- | -------- | ------- |
| lags | maximum lags to display in plots | 15 | True | range(5, 100) |

![acf](https://user-images.githubusercontent.com/46355364/154305242-176c3ba1-ebfc-43e7-a027-46251fb02463.png)

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