Good point! Stuff that can be efficiently expressed as matrix operations is trivial for "Python" (eg BLAS) to handle. But I don't know of a good way to express

Good point! Stuff that can be efficiently expressed as matrix operations is trivial for "Python" (eg BLAS) to handle. But I don't know of a good way to express a rolling maxima of a time series that way. And even less so if it is a streaming data feed.