---
title: causality
description: Learn how to perform a Granger causality test to determine if X causes
  y. Understand the parameters and the results returned by the test.
keywords:
- Granger causality test
- causality
- perform
- determine
- exogenous variables
- lags
- data
- target column
- results
---



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Perform Granger causality test to determine if X "causes" y.

Parameters
----------
data: List[Data]
Input dataset.
y_column: str
Target column.
x_column: str
Columns to use as exogenous variables.
lag: PositiveInt
Number of lags to use in the test.

Returns
-------
OBBject[Data]
OBBject with the results being the score from the test.

```python wordwrap

```

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## Parameters

This function does not take standardized parameters.

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## Returns

This function does not return a standardized model

---