http://www.perlmonks.org?node_id=998927


in reply to Re^3: Find overlap
in thread Find overlap

Your solution is an excellent use of a HoH! Here are a few items to consider within your foreach:

foreach (@ARGV) { open my $fh, '<', $_ or die $!; while ( my $line = <$fh> ) { next unless my @p = $line =~ /^(chr.+?)\t+(\d+)\t+(\d+)/; $minmax{ $p[0] }{min} //= $p[1]; $minmax{ $p[0] }{max} //= $p[2]; if ( $p[1] < $minmax{ $p[0] }{min} ) { $minmax{ $p[0] }{min} = $p[1]; } if ( $p[2] > $minmax{ $p[0] }{max} ) { $minmax{ $p[0] }{max} = $p[2]; } } close $fh; }

Hope this is helpful.