It's two sets of roughly six months of data each, with a gap of time between them. I didn't track food over the Christmas holidays because my eating wasn't "typical". Though, looking back, I should have tracked that period of time because it would have allowed me to compare how I ate over the holidays with what I normally eat. Lesson learned.
I do plan to analyze the differences between the two sets. Specifically, I'll build a dashboard in EventLoggers.com that lets me choose any two date periods to generate some comparative analytics but that hasn't made it to the top of my list yet.
I've flop-flopped about continuous and complete meal logging - at one point I considered it unrealistic but I've had two fairly good runs at sustained periods of logging my food. I'm keeping my eyes on some new tools that should make it more realistic for lots of people to log most/all of what they eat.
I think it's reasonable and useful to track a month of eating (about 100 meals), take a break for a couple months, and then track the next month and compare the data sets. I'm very curious to know what other people think though. And I know lots of people have health conditions that require varying levels of "continuous" food/drink monitoring.