merlyn showed ya map but honestly you shouldn't get into the habit of traipsing through a data set multiple times. When ever you see two lines that both end "foreach (@array)" you should be doing: 
foreach (@data) {
push @h, $_->{'hour'};
push @c, $_->{'count');
}

[download]

You get in a hurry and do it wrong then wind up going through the same data like 7 or 8 times when there are 100,000 items in the list and you are going start wondering where your afternoon of surfing PM went. =P

--
$you = new YOU;
honk() if $you->love(perl)

In reply to Re: (jeffa) Re: Question about using hash indexes with GD::Graph by extremely
in thread Question about using hash indexes with GD::Graph by vonman

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