I know some statistics but this is beyond me. I have a set of temperature measurements that were recorded at set intervals. When a certain condition occurs these measurements become constrained to a small range of temperatures. I have to be able to consistently identify the start and end points of each time this condition occurs. The kicker is that there can be the occasional fluctuation in temperature during the condition and I have to have a way to overlook it. I've started looking into time series analysis but it is something I've never been exposed to and there seems to be a lot of content involved. One thing I've noticed though is that a lot of what I've read about time series analysis assumes a random process, but I'm pretty sure that what I'm looking at doesn't qualify as such. I was hoping that maybe someone could maybe point me in the right direction. Something as simple as a term or method that I could look up and use as a starting point. Thanks.