---
title: "Data function - numeric-combinations"
slug: "numeric-combinations-data-function"
updated: 2022-07-27T14:36:28Z
published: 2022-07-27T14:36:39Z
---

> ## 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.

# numeric-combinations

### numeric-combinations

**creates: *numeric collection***

A `numeric-combinations` data function produces one or more collections of numeric variables, contingent on the categorical data function provided in the criteria array. The `numerics` attribute specifies which numeric variables will be transformed in combination with the dynamic categorical combinations.

| **attribute** | **type** | **description** | **options** |
| --- | --- | --- | --- |
| `operator` | string | how to combine the criteria and categoricals data | `all``single``pairwise` |
| `use_variable_name` | boolean | numeric variable names are used as the new collection names | `true``false` |
| `criteria` | array | categorical data | `collection``data_function``argument_reference` |
| `numerics` | array | numeric data | `collection``data_function``argument_reference` |

```
{
  "data_function_type": "numeric-combinations",
  "operator": "all",
  "use_variable_name": true,
  "criteria": [
    ...
  ],
  "numerics": [
    ...
  ]
}
```

By default, the `operator` attribute is set to `all`. The `all` operator means that each `variable` from the collections defined in the `criteria` array will be intersected with every numeric `variable`, one at a time, from all of the other collections in criteria. Dynamic collections from all-vs-all combinations of `variables` are used to transform each numeric `variable` from the `numerics` array.

If the operator attribute is set to `single`, each categorical `variable` from the collections defined in the `criteria` array will be independently used to transform each numeric `variable` from the `numerics` array.

If the operator attribute is set to `pairwise`, each numeric `variable` from the collections defined in the `criteria` array will be intersected with every numeric `variable`, from each of the other collections in `numerics`. Dynamic collections from all pairwise combinations of variables are used to transform each numeric `variable` from the `numerics` array.