> For the complete documentation index, see [llms.txt](https://docs.mobilitylab.co.nz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mobilitylab.co.nz/user-guide/filters.md).

# Filters

dd filters to your map to limit the data that is displayed. Filters must be based on the columns in your dataset.

To add a filter:

1. Navigate to the datasets tab

<figure><img src="https://3566446502-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FreZrjEwkXal3rd9EjRgb%2Fuploads%2FPawt6EwbRQlfd4MfrJnq%2FScreenshot%202025-03-21%20090832.png?alt=media&amp;token=60c04796-04bb-4c52-b3da-4011ca9cd4d7" alt=""><figcaption></figcaption></figure>

1. Under each dataset, a list of filters will be displayed. To create a new filter, Click **+ Filter**.
2. Choose a field on which to filter your data. Filter values are defined by field data type (number, string, etc.).&#x20;

   <figure><img src="https://3566446502-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FreZrjEwkXal3rd9EjRgb%2Fuploads%2FMPT9EWTTJQE4GO9Gt5uf%2FScreenshot%202025-03-21%20091132.png?alt=media&amp;token=9dbceb78-4b42-48b6-b011-98bf4256cf1f" alt=""><figcaption></figcaption></figure>
3. Your filter is applied to your map as soon as you specify the field and value.
4. Delete a filter anytime by clicking the **trashcan** to the right of the filter you wish to delete.

**Note**: filters apply to all layers in the same dataset on your map.