From 4a3b45c80993a1ef52c2a046b84a0dd1e68ce877 Mon Sep 17 00:00:00 2001
From: Tamas Gal <tgal@km3net.de>
Date: Sun, 19 May 2019 23:55:59 +0200
Subject: [PATCH] Fix hit sorting

---
 scripts/ztplot.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/scripts/ztplot.py b/scripts/ztplot.py
index f5a3007..bb8cc88 100755
--- a/scripts/ztplot.py
+++ b/scripts/ztplot.py
@@ -109,10 +109,11 @@ class ZTPlot(kp.Module):
         doms = set(hits.dom_id)
         fontsize = 16
 
-        hits = hits.append_columns('multiplicity', np.ones(len(hits)))
+        hits = hits.append_columns('multiplicity',
+                                   np.ones(len(hits))).sorted(by='time')
 
         for dom in doms:
-            dom_hits = hits[hits.dom_id == dom].sorted(by='time')
+            dom_hits = hits[hits.dom_id == dom]
             mltps, m_ids = count_multiplicities(dom_hits.time)
             hits['multiplicity'][hits.dom_id == dom] = mltps
 
-- 
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