nushell/docs/commands/dfr_count-unique.md

---
title: dfr count-unique
layout: command
version: 0.59.0
---

Counts unique values

## Signature

```> dfr count-unique ```

## Examples

Counts unique values
```shell
> [1 1 2 2 3 3 4] | dfr to-df | dfr count-unique
```