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I intend to go through my own charts and do some statistics on the previous fourth wave retracement; Wave 2 and 4 alternation; and longest of waves 3 and 5 (but my charts are already influenced by what I believe to be statistical likely). There are innumerable statistics to be obtained and it would be wonderful to remove the subjectivity. Swannell had many of these statistics but he went off to Fiji and died on us this summer. I've seen several pages of his results, but none of the raw data.
Anyway, yes, It's possible and would be very interesting to write an Elliott calculator. I can already imagine how it might work, though I'm sure there are many demons in the details. It's no simple weekend project.
You may note that Swannell added many new rules (beyond Elliott's three) to restrict the number of possible counts. I already think there's much too much variability in the corrective wave types. I'd rather say there are x impulsive types and y corrective types and when none or multiple fit, you'd have to say for example, it's 57% type a and 58% type b and only 12% type c. Whether the result would still be truly Elliott, I don't know, and perhaps I don't care, as long as it's predictive.
Re: Weierstrass: Yup, this is why I had to add some pathological parenthetical tap-dancing around my statement that sine waves were 'never' self-similar. But where are you going with that?