Following is the real code :

use strict;
use Time::HiRes;
my $start_time = [Time::HiRes::gettimeofday()];
my (@coordinates,%hash_chr,%HOA,%HOH,%hash_line) = ();
open FILE,"GmGm.recent.gff";
while(my $line=<FILE>){
chomp $line;
my %seen = ();

if($line=~/^(Gm\d{1,})\trecent_duplication\tsyntenic_region\t(\d{1,})\
+t(\d{1,})\t.*\tID\=\w{1,}_Gm\d{1,}\.(Gm\d{1,}.*)\;median_Ks=(.*)\;mat
+ches\=(Gm\d{1,}\:\d{1,}\.\.\d{1,})/)
{
    my $chr1 = "$1:$2..$3";
    my $ks_val = $5;
    my $chr2 = $6;
    
    if ((exists $hash_chr{$chr2})&&($ks_val > 0.4)){
       next;
    }    
    else{
          $hash_chr{$chr1}=$chr2;
      }
      }
}
close FILE;

[download]

And this is how the file looks like


Gm01    recent_duplication    syntenic_region    170877    269340    1
+79    -    .    ID=A_Gm01.Gm08.2.-;median_Ks=0.1101;matches=Gm08:4628
+8465..46349001

Gm08    recent_duplication    syntenic_region    46288465    46349001 
+   179    -    .    ID=B_Gm01.Gm08.2.-;median_Ks=0.1101;matches=Gm01:
+170877..269340

[download]

In reply to Re^3: hash with both values and keys unique to each other by perlkhan77
in thread hash with both values and keys unique to each other by perlkhan77

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