From ce626936a2e6edd790651d5bb2388328815df226 Mon Sep 17 00:00:00 2001
From: Valerij Talagayev <82884038+talagayev@users.noreply.github.com>
Date: Thu, 19 Dec 2024 02:33:16 +0100
Subject: [PATCH] Update diffusionmap.py

move back ndarray_sum
---
 package/MDAnalysis/analysis/diffusionmap.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package/MDAnalysis/analysis/diffusionmap.py b/package/MDAnalysis/analysis/diffusionmap.py
index ca6f29541f..da23db7c0b 100644
--- a/package/MDAnalysis/analysis/diffusionmap.py
+++ b/package/MDAnalysis/analysis/diffusionmap.py
@@ -300,7 +300,7 @@ def _conclude(self):
     def _get_aggregator(self):
         return ResultsGroup(
             lookup={
-                "dist_matrix": ResultsGroup.ndarray_vstack,
+                "dist_matrix": ResultsGroup.ndarray_sum,
             }
         )