# ISUNIQUE

ISUNIQUE( `series` )

Returns a boolean sereis indicating whether each value of the specified series is unique.

### Arguments

| Argument | Description                          |
| -------- | ------------------------------------ |
| `series` | Series of which to assess uniqueness |

### Output

Outputs true if the value is unique and false if the value is a duplicate.

### Example

{% embed url="<https://datawrapper.dwcdn.net/DQNel/1>" %}