Randomness of different card shuffling techniques [OC]

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image showing Randomness of different card shuffling techniques [OC]

osmutiar on August 1st, 2018 at 12:14 UTC »

Script and data : https://github.com/SoumitraAgarwal/Shuffle-simulator

Created using OpenCV

Shuffling techniques : https://en.wikipedia.org/wiki/Shuffling

garnet420 on August 1st, 2018 at 12:16 UTC »

I like it, but I feel like it needs a second measure, besides the visual indicator. Some of these look so similar.

For example, the number of cards that are in order in the deck (eg if there's three cards in a row still in the same order, you might count that as 2)

You'd want to compare that to the expected number from a truly random shuffle.

Mind_Killer on August 1st, 2018 at 13:37 UTC »

It is the riffle shuffle, though, right? Ruffle shuffle sounds fun enough that I'm doubting it, but I'm pretty sure I've always heard it called riffle.

This seems to indicate that smooshing isn't too bad of a way to go at least as far as creating a randomized deck is concerned. Two year old me was onto something. That along with 52-card pickup and I've created the perfect deck.