From 35115083ce43e7898420bee3d7c94e5682527eff Mon Sep 17 00:00:00 2001
From: Dima Kogan <dima@secretsauce.net>
Date: Thu, 22 Jul 2021 11:23:48 -0700
Subject: [PATCH] --histo with a --timefmt makes time-based histograms

Not documented yet or added to the tests yet, but appears to work
---
 bin/feedgnuplot | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/bin/feedgnuplot b/bin/feedgnuplot
index 9249e71..b31e5b1 100755
--- a/bin/feedgnuplot
+++ b/bin/feedgnuplot
@@ -841,10 +841,16 @@ sub mainThread
     addOption($_, 'extraoptions', 'axes x2y2 ') foreach (@{$options{x2y2}});
 
     # timefmt
+    my $histcol;
     if( $options{timefmt} )
     {
       print(PIPE "set timefmt '$options{timefmt}'\n");
       print(PIPE "set xdata time\n");
+      $histcol = qq{timecolumn(2,"$options{timefmt}")};
+    }
+    else
+    {
+      $histcol = '$2';
     }
 
     # set up histograms
@@ -859,7 +865,7 @@ sub mainThread
         # domain, so I get the statistics of the 2nd column: $2
         addOption($id,
                   'usingoptions',
-                  'using (histbin($2)):(1.0) smooth ' . $options{histstyle},
+                  'using (histbin(' . $histcol . ')):(1.0) smooth ' . $options{histstyle},
                   'do-not-override');
     }