Moved Eule to its own repository

_TestingUtilities/Testutil.h

@@ -0,0 +1,27 @@
+#pragma once
+#include <vector>
+ 
+class Testutil
+{
+public:
+	template <typename T>
+	static double Stddev(const std::vector<T>& distribution)
+	{
+		// Calculate mean
+		double sum = 0;
+		for (const T& i : distribution)
+			sum += i;
+		const double mean = sum / distribution.size();
+
+		// Calculate variance
+		sum = 0;
+		for (const T& i : distribution)
+			sum += (i - mean) * (i - mean);
+		const double variance = sum / (distribution.size() - 1);
+
+		// Calcuate stddev
+		const double stddev = sqrt(variance);
+
+		return stddev;
+	}
+};