Let's suppose we have a series of time-based data describing a dynamic (e.g., air temperature over the year, measured once a day). Is it possible to apply a statistical technique that allows me to identify similar periods? An example of the expected results could be: 1) January-March as one group, then 2) April-June, 3) July-October, and 4) October-December
Usually, I don't deal with data that don't stem from experimental designs or similar ;-)