nushell/docs/commands/dfr_is-unique.md

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

Creates mask indicating unique values

## Signature

```> dfr is-unique ```

## Examples

Create mask indicating unique values
```shell
> [5 6 6 6 8 8 8] | dfr to-df | dfr is-unique
```