Measuring Hills and Valleys

日期:2013/07/18

There must be a way of measuring the hills and valleys and their durations. Possibly with survival statistics. And then computing similarities of the present to the most egregious bad or remarkably good ones in the past. Once this similarity is measured, presumably with a squared distance, the similarity would be correlated with subsequent action. I would imagine geologists and modern statisticians have many rules of thumb for computing such distances of current to past.