Shuffle

Onkel Rikki

How would I shuffle a set of integers? For example, you have set of hundred integers in ascending order: 1, 2, 3, 4, 5, 6, ... 100. The goal is shuffle this set into a random order with all 100 integers present, every integer just once. Hopefully there's a macro somewhere!

colB

https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle

There was a long thread on the old forum. Pretty sure I uploaded a Fisher-Yates implementation. Might still be up on waybackmachine.

Onkel Rikki

Fisher-Yates seems the way to go. It's easy to do it with code, but probably not in Reaktor.

Any idea when your Shuffle was in the forum? If I can't find it, would you be up for redoing it?

colB

heh, I wouldn't be redoing it, but I did find a version. Doesn't have all the bells and whistles, but it seems legit and has sum test code around it to demonstrate the functionality… from 2010… lol

shuffled random 03.ens.zip

Onkel Rikki

Yay! Thanks for the shuffle and all your delightful deep ensembles, I've been a fan for many years.

dreason85

I don't think implementing Shuffle with Reaktor is a difficult task. You can do it by constantly swapping the positions of values in an array, but I think the difficulty lies in dealing with a series of discontinuous numbers. We can use the Iteration module to generate a series of continuous numbers, and of course, you can also use the Randomizer module to randomly generate a series of discontinuous integers. However, please remember that there will definitely be duplicates in the generated integers. If you want to customize these integers and then do Shuffle, I think combining Event Table and Core Cell is the most effective attempt.

Here, I have provided you with a Shuffle for consecutive numbers.

Shuffle.ens