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OpenBB/website/content/sdk/reference/qa/unitroot.md
jose-donato 2e7eb4c9b6 New documentation website (#3526)
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Co-authored-by: teh_coderer <me@tehcoderer.com>
2022-11-22 16:47:03 +00:00

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---
title: unitroot
description: OpenBB SDK Function
---
import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';
# unitroot
<Tabs>
<TabItem value="model" label="Model" default>
Calculate test statistics for unit roots
Source Code: [[link](https://github.com/OpenBB-finance/OpenBBTerminal/tree/main/openbb_terminal/common/quantitative_analysis/qa_model.py#L135)]
```python
openbb.qa.unitroot(data: pd.DataFrame, fuller_reg: str = "c", kpss_reg: str = "c")
```
---
## Parameters
| Name | Type | Description | Default | Optional |
| ---- | ---- | ----------- | ------- | -------- |
| data | pd.DataFrame | DataFrame of target variable | None | False |
| fuller_reg | str | Type of regression of ADF test. Can be ‘c’,’ct’,’ctt’,’nc’ 'c' - Constant and t - trend order | c | True |
| kpss_reg | str | Type of regression for KPSS test. Can be ‘c’,’ct' | c | True |
---
## Returns
| Type | Description |
| ---- | ----------- |
| pd.DataFrame | Dataframe with results of ADF test and KPSS test |
---
</TabItem>
<TabItem value="view" label="Chart">
Prints table showing unit root test calculations
Source Code: [[link](https://github.com/OpenBB-finance/OpenBBTerminal/tree/main/openbb_terminal/common/quantitative_analysis/qa_view.py#L839)]
```python
openbb.qa.unitroot_chart(data: pd.DataFrame, target: str, fuller_reg: str = "c", kpss_reg: str = "c", export: str = "")
```
---
## Parameters
| Name | Type | Description | Default | Optional |
| ---- | ---- | ----------- | ------- | -------- |
| data | pd.DataFrame | DataFrame | None | False |
| target | str | Column of data to look at | None | False |
| fuller_reg | str | Type of regression of ADF test. Can be ‘c’,’ct’,’ctt’,’nc’ 'c' - Constant and t - trend order | c | True |
| kpss_reg | str | Type of regression for KPSS test. Can be ‘c’,’ct' | c | True |
| export | str | Format for exporting data | | True |
---
## Returns
This function does not return anything
---
</TabItem>
</Tabs>