It does look temptingly simple doesn't it?
But you'd be iterating across the list three times - which isn't very efficient. You only really need to iterate across it once. Something like this (off the top of my head and untested).
# use 'mean' instead of 'avg' as it's unambiguous
sub min_max_mean {
my ($min, $max, $tot);
my $count = @_;
$min = $max = $tot = shift;
foreach (@_) {
$min = $_ if $_ < $min;
$max = $_ if $_ > $max;
$tot += $_;
}
return ($min, $max, $tot / $count);
}
--
< http://dave.org.uk>
"The first rule of Perl club is you do not talk about
Perl club." -- Chip Salzenberg
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