From fe90a3c686bb6ce930b282749ea3bba019237e88 Mon Sep 17 00:00:00 2001
From: TKE <tobias.kessels@certbw.de>
Date: Thu, 25 Mar 2021 17:46:14 +0100
Subject: [PATCH] Add avgdiff aggregator to visidata

avgdiff determines avgdifferenz between two consecutive values in a column
---
 visidatarc | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/visidatarc b/visidatarc
index 89fb0fa..8e73560 100644
--- a/visidatarc
+++ b/visidatarc
@@ -3,6 +3,15 @@
 from datetime import datetime
 import functools
 
+def avgdiff(values):
+    L = sorted(values)
+    a = L[1:]
+    b = L[:-1]
+    c = sum([abs(x[0]-x[1]) for x in zip(a,b)])
+    return c/len(a)
+
+aggregator('avgdiff', avgdiff)
+
 def tsfromtime(val, format):
     import time
     from calendar import timegm