From d00bca4e12a8133d4816c125760e383e31ca8c11 Mon Sep 17 00:00:00 2001
From: Arthur Guiot <arguiot@gmail.com>
Date: Thu, 8 Sep 2022 17:17:42 -0400
Subject: [PATCH] Added mode to statistics object

---
 Sources/Euler/Statistics/Statistics.swift | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/Sources/Euler/Statistics/Statistics.swift b/Sources/Euler/Statistics/Statistics.swift
index 109ba364..48e610da 100644
--- a/Sources/Euler/Statistics/Statistics.swift
+++ b/Sources/Euler/Statistics/Statistics.swift
@@ -33,3 +33,18 @@ public class Statistics: NSObject {
         self.list = list.map { BigNumber($0) }
     }
 }
+
+// MARK: Basic Methods for the list
+public extension Statistics {
+    /// Returns the mode of the list.
+    ///
+    /// The mode is the value that appears most often in a set of data values.
+    var mode: BigNumber {
+        var counts: [BigNumber: Int] = [:]
+        for num in self.list {
+            counts[num, default: 0] += 1
+        }
+        let sorted = counts.sorted { $0.value > $1.value }
+        return sorted[0].key
+    }
+}