Here's a tool Google built called CausalImpact to go beyond correlation and get at cause and effect in time-series data. http://google-opensource.blogspot.com/

Here's a tool Google built called CausalImpact to go beyond correlation and get at cause and effect in time-series data. http://google-opensource.blogspot.com/2014/09/causalimpact-new-open-source-package.html http://google-opensource.blogspot.com/2014/09/causalimpact-n... And their related research into using Bayesian structural time-series models to infer cause and effect. http://research.google.com/pubs/pub41854.html http://research.google.com/pubs/pub41854.html