---
title: "Data function - set-intersection"
slug: "set-intersection-data-function"
updated: 2022-07-27T14:23:35Z
published: 2022-07-27T14:23:35Z
---

> ## Documentation Index
> Fetch the complete documentation index at: https://code.tag.bio/llms.txt
> Use this file to discover all available pages before exploring further.

# set-intersection

### set-intersection

**creates: *categorical variable***

A `set-intersection` data function evaluates the intersection, i.e. the AND operation, for two or more categorical variables, data functions, or argument-references.

| **attribute** | **type** | **description** | **options** |
| --- | --- | --- | --- |
| `criteria` | array | categorical data | `variable``data_function``argument_reference` |

```
{
  "data_function_type": "set-intersection",
  "criteria": [
    ...,
    ...
  ]
}
```