Every Possible Combination of Indices

Replies to This Discussion

Permalink Reply by Anders Holden Deleuran on December 14, 2016 at 5:31am

A simple/terse solution to this class of problem, might be to use the permutations function found in the standard itertools module in Python. Note that it might not scale super well with large input sets, due to the cost of outputting large amount of data from the GHPython component. Attached this example: 


Edit: Mohamed beat me to it :)

Attachments:

• 161214_Python_CombinatorialGen.gh, 5 KB

Permalink Reply by Mohamed Naeim on December 14, 2016 at 5:36am

There is also something called Variation

repeating elements the same length as the places like this (c,c,c,b,b,b,c,c,c) give as result like (cat, cat, cat) or zero as an option

adding empty value to variations elements (" ", "a", "b", "c") give us values like (cat) or (cat, cat)

Permalink Reply by Mohamed Naeim on December 14, 2016 at 7:47am

You can say I have all variations of (a,b,c) like a, ab, abc

but I guess when you use the word combination you say all possible unique combinations in two places ([][])out of 3  elements (a,b,c)

(ab = ba)

but for permutations, you say all possible permutations for two places ([][]) from a pool of 3 elements (a,b,c)

(ab != ba)

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