# About the Related: rf category

**URL:** <https://discourse.obspy.org/t/about-the-related-rf-category/1011>\
**Category:** Related: rf\
**Created:** [July 29, 2020, 8:06am UTC](https://discourse.obspy.org/t/about-the-related-rf-category/1011 "2020-07-29T08:06:38Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![megies](https://discourse.obspy.org/user_avatar/discourse.obspy.org/megies/32/9_2.png) [@megies](https://discourse.obspy.org/u/megies)\
**Post date:** [July 29, 2020, 8:06am UTC](https://discourse.obspy.org/t/about-the-related-rf-category/1011/1 "2020-07-29T08:06:38Z")

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[**rf** – Receiver function calculation in seismology](https://github.com/trichter/rf)

rf is a Python framework for receiver function analysis. Read and write support of necessary metadata is provided for SAC, SeismicHandler and HDF5 waveform files. Data is handled by the `RFStream` class which inherits a lot of useful methods from its ObsPy ancestor `Stream` , but also has some unique methods necessary for receiver function calculation.