<p>Total newb to stats: I'm an embedded programmer with a BSEE, so I like to think I've got lots of knowledge with the least possible amount of applicability to real life. </p>

<p>I built a test bench to observe the output of a sensor and <a href="https://stackoverflow.com/questions/19269638">came up with an algorithm</a> to quantify an anomaly I observed in the data. I wanted to know what to call it, so I asked on <a href="https://math.stackexchange.com/questions/530767">Math.SE what is the average of an integral</a>. While continuing to research related questions on Math.SE for a week, I just saw someone said their similar-ish question was answered on here...</p>

<p>Could I please get help with which tags to use to post the <a href="https://math.stackexchange.com/questions/530767">Math.SE question</a> on here? Or if this is really trivial, I'd appreciate a pat on the back and <em>"it is $__________$, duh!"</em> for an answer.</p>

<p>Note that in the <a href="https://stackoverflow.com/questions/19269638">stackoverflow alagorithm link</a> above, I mention that standard deviation, skewness, nor Kurtosis help. Also that I have known data, so my problem isn't helped with estimation tools like linear regression.</p>

<p>Basically, I came up with a way to quantify the "dip" in this figure and want to know what that process is called:</p>

<p><img src="https://i.stack.imgur.com/W5oXL.png" alt="I caught the dip, but what is the fishing rod called?"></p>
