> For the complete documentation index, see [llms.txt](https://help.felt.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.felt.com/layers/filters.md).

# Filters

{% embed url="<https://youtu.be/kw9Hsm2WRgk?si=STekdDMG-ucshYTv&t=36>" %}

Filters are conditions added to your data layers to only show a subset of features in the map, in the [Table View](/layers/table-view.md) or as the input for [Analysis](/layers/spatial-analysis.md).

## Adding filters to a layer

Filters work on all data types, including text, numbers, booleans and dates. Filters can be added to a layer in two ways:

* Directly from the Table View by clicking on a column, then on **Add filter...**
* In the **Filter** tab of the detail panel, by clicking on the **Add filter** button.

<figure><img src="/files/Wd0SLb3xEVUdXPxtgpxy" alt=""><figcaption></figcaption></figure>

## Creating new filtered layers

It can be useful to create new derived layers that contain just the filtered data from the original. This can be achieved by clicking on the **# features** button, then selecting the **Update in new layer** option from the dropdown menu.

<div align="left"><figure><img src="/files/tOLw8RImmI6ZEyAjz59u" alt="" width="327"><figcaption></figcaption></figure></div>

## Filters & Analysis

[Analysis](/layers/spatial-analysis.md) operations can use filtered layers as input, which is very convenient for quick data wrangling & exploration.


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