1 Matching Annotations
  1. Mar 2018
    1. I'll skip the inefficient method I used before with the custom groupby aggregationm, and go for some neat trick using the mighty transform method.

      a more constrained. and thus more efficient way to do transformations on groupbys than the apply method. You can do very cool stuff with it. For those of you who know splunk - this has the neat "streamstats" and "eventstats" capabilities