I’ve figured out an easy way to get at interesting data. First I fire up the tweet nabber written in ruby, then run this cheap piece of crap and extract only time data from tweets pulled.

After getting the time data, I open the *.csv in Minitab and create a histogram with it. I then have the frequency with which a person tweets over 3k tweets by time, so I can approximate when they’re most active throughout the day based on my relative time zone.

I’m going to go through an incredibly quick rundown of how to conduct your own Gage Repeatability and Reproducibility study using Minitab. The first thing you should keep in mind is that there are ways you “should” conduct a GR&R and there are ways you “shouldn’t”. You “should” be doing a blind, randomized study that doesn’t allow the “operator” to influence the study with what he expects. This isn’t always the easiest way to begin your first study or introduce yourself to these types of studies. For your first study, just do your trials in order.