Oh. I see what you mean.

Eg. If of 1000 strings, 500 have a 1 in bit 0, then you know that in the 500500 2-way compares, you would get '00' & '11' 1/4 of the time each and '01' or '10' 1/2 of the time.

But I don't see a way of determining how many '10's relative to the '01's?

And no way to determine which pairs of strings render which values for any given bit, nor a count of the four possible values for any given pair of strings?

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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In reply to Re^4: Speeding permutation counting by BrowserUk
in thread Speeding permutation counting by albert

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