.. currentmodule:: cf
.. default-role:: obj


Collapse FAQs
=============

.. note:: For versions 3.x (Python 3) documentation, see
          https://ncas-cms.github.io/cf-python

See the `cf.Field.collapse` documentation for full details.


Daily means
-----------

Create daily means from sub-daily data:

>>> g = f.collapse('T: mean', group=cf.D())

Create pentad means from sub-pentad data:

>>> g = f.collapse('T: mean', group=cf.D(5))