indicate average value in bar

[barcat.git] / graph

diff --git a/graph b/graph
index 40eccb15a4144b73e6b99d86b4e7b27fb4e6ba40..b53ac6a8496e2f1f46886ab21cc39a7bc6bc6c78 100755 (executable)
--- a/graph
+++ b/graph
@@ -1,7 +1,7 @@
 #!/usr/bin/env perl
 use 5.014;
 use warnings;
-use List::Util qw( max );
+use List::Util qw( max sum );
 
 my $width = $ENV{COLUMNS} || 80;
 
@@ -13,16 +13,22 @@ my $lenval = 1 + int log($order[0]) / log 10;  # max string length
 my $len    = 1 + max map { length } @lines;  # left padding
 my $size   = ($width - $lenval - $len) / $order[0];  # bar multiplication
 
+sub orderpos { ($order[$_[0]] + $order[$_[0] + .5]) / 2 * $size }
+my @barmark;
+$barmark[ sum(@values) / @values * $size ] = '=';  # average
+$barmark[ orderpos($#order / 2) ] = '+';  # mean
+defined and $_ = "\e[36m$_\e[0m" for @barmark;
+
 for my $nr (0 .. $#lines) {
        my $val = $values[$nr];
        my $color =
                $val == $order[0] ? 32 : # max
                $val == $order[-1] ? 31 : # min
-               $val == $order[$#order >> 1] ? 1 : # median
                90;
        printf "\e[%sm", $color if $color;
        printf "%*s", $lenval, $val;
        print "\e[0m" if $color;
        printf '%-*s', $len, $lines[$nr];
-       say '-' x ($val * $size);
+       print $barmark[$_] // '-' for 1 .. $val * $size;
+       say '';
 }