init

Common/DTS.Common.Utilities/StandardDev.cs

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+using System.Collections.Generic;
+using System.Linq;
+
+namespace DTS.Utilities
+{
+    public class StandardDev
+    {
+        public static double StandardDeviation(IEnumerable<double> values)
+        {
+            double standardDeviation = 0;
+
+            if (!values.Any()) return standardDeviation;
+            // Compute the average.     
+            double avg = values.Average();
+
+            // Perform the Sum of (value-avg)_2_2.      
+            double sum = values.Sum(d => System.Math.Pow(d - avg, 2));
+
+            // Put it all together.      
+            standardDeviation = System.Math.Sqrt((sum) / (values.Count() - 1));
+
+            return standardDeviation;
+        }
+    }
+}