It is quite safe to assume that we operate in a complex environments past mere survival. Should it be societies, sciences, religions, nations or circumventing a yearly tax declaration.
Cognition and reasoning are attributed with helping both envision such complex structures and overcoming accompanying convolutions. Ever more complex environment we…
This article is about using (rolling) window when applying mathematical aggregative function (i.e. statistic wiki) on data sampled from a table. Sample here is a number of consecutive elements that fit into a window.
We’ll see how this window-calculation can be realized with different tools: python, pandas, SQL and Spark.