Note to dplyr users: be sure you use ‘summarise’ and not ‘summarize’ in your applications of dplyr. Trust me; you’ll save debugging time.

The phone market: two firms profit from making phones: Samsung & Apple. Samsung sells more phones, Apple makes more money—much more. #ygmd

Finance is the only discipline I know where the company gets blamed for the analyst’s model being wrong. Well maybe economics too.