---
title: "Data function - categorical"
slug: "categorical-data-reference"
updated: 2022-12-14T00:49:33Z
published: 2022-12-14T00:49:33Z
---

> ## 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.

# categorical

### categorical

**creates: *categorical collection or variable***

A `categorical` data function directly references a categorical `collection` or `variable` in the data model, It can optionally refer to all categorical collections.

| **attribute** | **type** | **description** | **options** |
| --- | --- | --- | --- |
| `collection` | string | the name of a categorical `collection` | any categorical `collection` |
| `variable` | string | the name of a `variable` within the specified `collection` | any `variable` within a categorical `collection` |

  

This data function represents all categorical collections:

```
{
  "data_function_type": "categorical"
}
```

This data function represents a categorical collection and all of the variables therein:

```
{
  "data_function_type": "categorical",
  "collection": "collection_name"
}
```

This data function represents a categorical collection and a specific variable within that collection.

```
{
  "data_function_type": "categorical",
  "collection": "collection_name",
  "variable": "variable_name"
}
```