What does advise() with PATTERN option do in terms of machine learning? Conditions in if() statements in the output code look like made by a rule learner (separate-and-conquer, in contrast to divide-and-conquer by decision tree); values at the leaves look like those made by regression tree. Does Zorro's method have a common name in machine learning world?

I started digging into the topic after trying to compare Karsten Martiny's unsupervised candle pattern discovery with agglomerative clustering (mentioned on robotwealth.com) and http://www.zorro-trader.com/manual/en/advisor.htm

A similar question - does anybody know what PriceActionLab does in terms of machine learning? I'm trying to avoid reverse engineering their long manual http://www.priceactionlab.com/Literature/pal71manual/pal71manual.html