This is my method for sorting parallel arrays. It needs some work because it's very slow. Any help is appreciated.
sub parasort (&@) {
my($coderef, $master_array, @arrayrefs) = @_;
my(%hash, @final);
@{$final[0]} = sort {&$coderef;} @{$master_array};
foreach my $m (0 .. $#{@{$master_array}}) {
foreach my $s (0 .. $#arrayrefs) {
push @{$hash{$$master_array[$m]}[$s];}, $arrayrefs[$s][$m]
+;
}
}
foreach my $m (sort {&$coderef;} keys %hash) {
$t = 1;
foreach my $s (@{$hash{$m};}) {
push @{$final[$t]}, @{$s};
++$t;
}
}
return @final;
}
my @array1 = (10, 9, 8, 7, 6, 5, 5, 3, 2, 1);
my @array2 = ( 3, 6, 2, 5, 6, 7, 8, 3, 2, 5);
my @array3 = ( 4, 6, 7, 4, 3, 2, 5, 7, 8, 9);
my ($array1, $array2, $array3) = parasort { $a <=> $b } \@array1, \@ar
+ray2, \@array3; #returns arrayrefs
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.