On Thu, 23 May 2002, Jeff 'japhy' Pinyan wrote:
> On May 23, Craig Hammer said:
>
> >Very nice explanation. One thing though, I am not using uniq to remove
> >duplicates. I am using it to get a count of duplicates. In my case, I am
> >creating a threshhold to determine when someone (malicious) is scanning my
> >address ranges.
>
> Ah, I see. Well then, you can use either method to obtain the count:
>
> # a -- from perlfaq4
> my $prev = "NO_SUCH_VALUE";
> my $dup = 0;
> my @sorted = grep { $_ ne $prev ? $prev = $_ : ++$dup } sort @records;
Correct me if I'm wrong, but I don't think this does what Craig wants,
since $dup would end up containing all the values of %seen from b)
added up, with no indication of how many values were seen more than
once, how often each of these was seen or what those values were (all
of which I assume to be interesting in this case).
Elias
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