Sessionizing Log Data Using dplyr [Follow-up]

Last week, I wrote a blog post showing how to sessionize log data using standard SQL. The main idea of that post is that if your analytics platform supports window functions (like Postgres and Hive do), you can make quick work out of sessionizing … [Continue reading]

Sessionizing Log Data Using SQL


Over my career as a predictive modeler/data scientist, the most important step(s) in any data project without question have been data cleaning and feature engineering. By taking the data you have, correcting flaws and reformulating raw data into … [Continue reading]

RSiteCatalyst Version 1.4.3 Release Notes


It's a new year, version of RSiteCatalyst on CRAN! For the most part, this release fixes a handful of bugs that weren't noticed with the prior release 1.4.2 (oops!), but there are pieces of additional functionality. New functionality: Data … [Continue reading]