This is very close, see the values for "Zilda Mil", it should display "14.0" but instead its getting the "9.0".
Hmmm, yes, this is because it's using 'gt' rather than '<'. I copied the regex from your program. The best solution (if you're on Perl 5.8 or later) is to use looks_like_number:
use Scalar::Util 'looks_like_number';
for my $aref_acc_num (sort { $a->[0] cmp $b->[0] } values %$acc_num) {
push @$all_dta_acc_num, my $tmp = [];
for my $aref (@$aref_acc_num) {
for my $i (0..1) {
$tmp->[$i] = $aref->[$i];
}
for my $i (2..$#$aref) {
if (!defined($tmp->[$i])) {
$tmp->[$i] = $aref->[$i];
} elsif (looks_like_number($tmp->[$i])) {
$tmp->[$i] = $aref->[$i] if $aref->[$i] > $tmp->[$i];
} else {
$tmp->[$i] = $aref->[$i] if $aref->[$i] gt $tmp->[$i];
}
}
}
}
If you're on an earlier Perl, see
perlfaq4.