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rnd-sample with :replace parameter

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I understand from initial testing, that currently rnd-sample works what statisticians call sampling with replacement.


Is this correct (please forgive me if I missed something in the doc) ?


I guess the current behavior covers most musical cases, as long as you want to get a sample which holds some mix of elements in SEQUENCE. There might be cases where you want a slightly different behaviour especially if N is close to length of SEQUENCE.


If I am correct, I suggest to implement a parameter :replace (by default t (true) for backward compatibility) to define a behavior where the elements from SEQUENCE are not replaced.


For :replace set to nil:

If N exceeds length of SEQUENCE then an error is raised.

If N equals the length of SEQUENCE then simply all elements are returned.




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