# mergel(Lists)

**mergel (Lists → List)**

This function transforms a given multidimensional list into a one-dimensional list.

**Example:**

```xml
<O N="mergelObject1" T="Project" Category="Functions" TransAlignRule="1">
    <!-- created by ParamML Examples on 8/23/2023 -->
    <P N="List" V="[[12,16,18],[13,17,19]]" />
    <P N="List1D" V="mergel(List)" />
</O>
```

![](https://openbrim.atlassian.net/wiki/download/attachments/2167603262/image-20230823-075515.png?api=v2) To view this example in the library, see (<https://openbrim.org/app/?incubator=1&author=ParamML_Examples_OpenBrIM+Platform&obj=objiddvqhdi1kollw0fqsxfhwo> )