Your first example throws an error about dowhy HOT 3 CLOSED

Looking at source I assumed from the help statement I could use 'None' as the method.
"""Refute an estimated causal effect. If method_name is provided, uses the provided method. Else, finds a suitable method to use. :param estimate: an instance of the CausalEstimate class. :returns: an instance of the RefuteResult class """
This throws an UnboundLocalError
UnboundLocalError: local variable 'refuter_class' referenced before assignment

This makes sense when I look at the code:
if method_name is None: pass else: refuter_class = causal_refuters.get_class_object(method_name)
refuter = refuter_class( self._data, identified_estimand=estimand, estimate=estimate, **kwargs ) res = refuter.refute_estimate() return res

from dowhy.

Thanks for raising this, @steunenberg . For some reason, I am unable to reproduce this bug. Can you share your python version and any other system details?
For instance, it works on the online Binder notebook here: https://mybinder.org/v2/gh/microsoft/dowhy/master?filepath=docs%2Fsource%2Fdowhy_simple_example.ipynb

from dowhy.

Thanks for getting back to me. System Info:

Python version 3.6.3 :: Anaconda custom (64-bit)
OS Ubuntu 16.04

I noticed that the Notebook examples under docs/source do work on my local system.

from dowhy.