+my $size = ($width - $lenval - $len) / $order[0]; # bar multiplication
+
+sub orderpos { ($order[$_[0]] + $order[$_[0] + .5]) / 2 * $size }
+my @barmark;
+$barmark[ orderpos($#order / 2) ] = '+'; # mean
+defined and $_ = "\e[36m$_\e[0m" for @barmark;