# 5.3. catalog_utils

Helper functions for common handling tasks for catalog objects.

Note

These functions are tools to aid simplification of general scripts, they do not cover all use cases, however if you have a use case you want to see here, then let the authors know, or implement it yourself and contribute it back to the project, or, if its really good, give it to the obspy guys!

copyright: | EQcorrscan developers.
license: | GNU Lesser General Public License, Version 3 (https://www.gnu.org/copyleft/lesser.html)

## 5.3.1. Classes & Functions

`filter_picks` | Filter events in the catalog based on a number of parameters.