Savitzky–Golay filter

A Savitzky–Golay filter is like a really great vacuum cleaner for your data! It can help you clean up a messy signal so it looks nice and neat. Just like a regular vacuum cleaner sucks up dirt from the ground, a Savitzky–Golay filter'll suck up any extra details from your data. It'll remove all the noise and jagged edges, leaving behind a smooth and even signal that's easier to understand. So you can use it to make your data look nicer and more organized. Pretty cool, right?