From fadd838fb041572e80678d8950fc2b7ee19d38c9 Mon Sep 17 00:00:00 2001
From: scattaru <scattaru@cern.ch>
Date: Sun, 19 Jan 2025 11:32:26 +0100
Subject: [PATCH] swap axis in cluster size histogram

---
 DPG/Tasks/AOTTrack/qaImpPar.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/DPG/Tasks/AOTTrack/qaImpPar.cxx b/DPG/Tasks/AOTTrack/qaImpPar.cxx
index 8cb6b3d89b5..c203638b657 100644
--- a/DPG/Tasks/AOTTrack/qaImpPar.cxx
+++ b/DPG/Tasks/AOTTrack/qaImpPar.cxx
@@ -704,7 +704,7 @@ struct QaImpactPar {
       histograms.fill(HIST("Reco/h4ImpPar"), pt, impParRPhi, track.eta(), track.phi(), pdgIndex, track.sign(), collision.numContrib(), track.isPVContributor());
       histograms.fill(HIST("Reco/h4ImpParZ"), pt, impParZ, track.eta(), track.phi(), pdgIndex, track.sign(), collision.numContrib(), track.isPVContributor());
       if (addTrackIUinfo) {
-        histograms.fill(HIST("Reco/h4ClusterSizeIU"), p, clusterSizeInLayer0, trackIuPosX, trackIuPosY, trackIuPosZ);
+        histograms.fill(HIST("Reco/h4ClusterSizeIU"), p, trackIuPosX, trackIuPosY, trackIuPosZ, clusterSizeInLayer0);
         histograms.fill(HIST("Reco/h4ImpParIU"), p, impParRPhi, trackIuPosX, trackIuPosY, trackIuPosZ);
         histograms.fill(HIST("Reco/h4ImpParZIU"), p, impParZ, trackIuPosX, trackIuPosY, trackIuPosZ);
       }