OK, probably a dumb question--but I can't get it output the way I want. I have a series of values that rise up through the course of a day. I really only want the highest value during each day so that I can chart that over time. (Yes, it's for my fitbit.) I thought I could do "... | chart max(blah) by date_day", but that didn't return any results. Am I missing something?
Yeah, thanks Gerald. I figured that out about 15 minutes after my caffeine starved brain woke up.
You really need
... | timechart span=1d max(blah)