From 90b3b1e145e9903ba78c0ae1d5b8f6a6eb542ef0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Kn=C3=BCttel?= <daniel.knuettel@daknuett.eu>
Date: Wed, 12 Feb 2020 13:32:12 +0100
Subject: [PATCH] added the missing 1/sqrt(N) for std deviation of averages

---
 performance/measure_circuit.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/performance/measure_circuit.py b/performance/measure_circuit.py
index 8535867..1c4cf6f 100644
--- a/performance/measure_circuit.py
+++ b/performance/measure_circuit.py
@@ -25,6 +25,6 @@ def execution_statistics(circuits, state, scale=1, **kwargs):
     results /= scale
     N = len(results)
     avg = np.average(results)
-    std_dev = np.std(results)
+    std_dev = np.std(results) / np.sqrt(N)
 
     return N, avg, std_dev