From: Jérôme Benoit <jerome.benoit@sap.com>
Date: Sat, 6 May 2023 17:55:36 +0000 (+0200)
Subject: fix: fix median and percentile calculation
X-Git-Tag: v1.2.12~6
X-Git-Url: https://git.piment-noir.org/?a=commitdiff_plain;h=6a349d8417f160c06ede76a0f36c4dbe60a585bd;p=e-mobility-charging-stations-simulator.git

fix: fix median and percentile calculation

Signed-off-by: Jérôme Benoit <jerome.benoit@sap.com>
---

diff --git a/src/performance/PerformanceStatistics.ts b/src/performance/PerformanceStatistics.ts
index a4dfd0b3..ecd6b3ab 100644
--- a/src/performance/PerformanceStatistics.ts
+++ b/src/performance/PerformanceStatistics.ts
@@ -191,7 +191,7 @@ export class PerformanceStatistics {
     const sortedDataSet = dataSet.slice().sort((a, b) => a - b);
     const middleIndex = Math.floor(sortedDataSet.length / 2);
     if (sortedDataSet.length % 2 === 0) {
-      return sortedDataSet[middleIndex / 2];
+      return sortedDataSet[middleIndex];
     }
     return (sortedDataSet[middleIndex - 1] + sortedDataSet[middleIndex]) / 2;
   }
@@ -215,7 +215,7 @@ export class PerformanceStatistics {
     if (Number.isInteger(percentileIndex)) {
       return (sortedDataSet[percentileIndex] + sortedDataSet[percentileIndex + 1]) / 2;
     }
-    return sortedDataSet[Math.round(percentileIndex)];
+    return sortedDataSet[Math.floor(percentileIndex)];
   }
 
   private stdDeviation(dataSet: number[]): number {