nushell/docs/commands/dfr_count-unique.md

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---
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
```