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Re^2: Sorting multiple arrays

by Codon (Friar)
on Sep 13, 2005 at 15:49 UTC ( #491607=note: print w/replies, xml ) Need Help??

in reply to Re: Sorting multiple arrays
in thread Sorting multiple arrays

This doesn't sort @array_b. The OP could then just numeric sort @array_b in a separate operation.

Ivan Heffner
Sr. Software Engineer, DAS Lead, Inc.

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Re^3: Sorting multiple arrays
by merlyn (Sage) on Sep 13, 2005 at 15:51 UTC
    Maybe I skimmed too fast, but I thought the sorting of array_b was only a logical sort to show how array_a needed to be reordered.

    If that's not the case, saving the indicies and using them twice would do the trick:

    my @indicies = sort { $array_b[$a] <=> $array_b[$b] } 0..$#array_b; my @sorted_a = @array_a[@indicies]; my @sorted_b = @array_b[@indicies];

    -- Randal L. Schwartz, Perl hacker
    Be sure to read my standard disclaimer if this is a reply.

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