Added backward compatibility for get_clean_factor_and_forward_returns

quantopian / alphalens

Performance analysis of predictive (alpha) stock factors

http://quantopian.github.io/alphalens

Apache License 2.0

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Closed luca-s closed 6 years ago

luca-s commented 6 years ago

Added missing backward compatibility for get_clean_factor_and_forward_returns

I forgot that 'by_group' argument was renamed 'binning_by_group'