From 761cfc331ada5e86054e3959cb5f1c9001b40b61 Mon Sep 17 00:00:00 2001
From: Christoph Ruegg <git@cdrnet.ch>
Date: Sat, 21 Nov 2015 14:12:08 +0100
Subject: [PATCH] Statistics: RunningStatistics DataContract for ephemeral
 serialization #350

---
 src/Numerics/Numerics-Net35.csproj           |  1 +
 src/Numerics/Numerics.csproj                 |  1 +
 src/Numerics/Statistics/RunningStatistics.cs | 21 +++++++++++++++++---
 3 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/src/Numerics/Numerics-Net35.csproj b/src/Numerics/Numerics-Net35.csproj
index 9742a3a5..243118dc 100644
--- a/src/Numerics/Numerics-Net35.csproj
+++ b/src/Numerics/Numerics-Net35.csproj
@@ -80,6 +80,7 @@
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.Core" />
+    <Reference Include="System.Runtime.Serialization" />
   </ItemGroup>
   <ItemGroup>
     <EmbeddedResource Include="Properties\Resources.resx">
diff --git a/src/Numerics/Numerics.csproj b/src/Numerics/Numerics.csproj
index 9bfd671b..550e7822 100644
--- a/src/Numerics/Numerics.csproj
+++ b/src/Numerics/Numerics.csproj
@@ -81,6 +81,7 @@
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Numerics" />
+    <Reference Include="System.Runtime.Serialization" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Differentiate.cs" />
diff --git a/src/Numerics/Statistics/RunningStatistics.cs b/src/Numerics/Statistics/RunningStatistics.cs
index 297792ba..44387c8c 100644
--- a/src/Numerics/Statistics/RunningStatistics.cs
+++ b/src/Numerics/Statistics/RunningStatistics.cs
@@ -1,4 +1,4 @@
-// <copyright file="DescriptiveStatistics.cs" company="Math.NET">
+// <copyright file="RunningStatistics.cs" company="Math.NET">
 // Math.NET Numerics, part of the Math.NET Project
 // http://numerics.mathdotnet.com
 // http://github.com/mathnet/mathnet-numerics
@@ -33,6 +33,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Runtime.Serialization;
 
 namespace MathNet.Numerics.Statistics
 {
@@ -40,15 +41,29 @@ namespace MathNet.Numerics.Statistics
     /// Running statistics accumulator, allows updating by adding values
     /// or by combining two accumulators.
     /// </summary>
+    [DataContract(Namespace = "urn:MathNet/Numerics")]
     public class RunningStatistics
     {
+        [DataMember(Order = 1)]
         long _n;
+
+        [DataMember(Order = 2)]
+        double _min = double.PositiveInfinity;
+
+        [DataMember(Order = 3)]
+        double _max = double.NegativeInfinity;
+
+        [DataMember(Order = 4)]
         double _m1;
+
+        [DataMember(Order = 5)]
         double _m2;
+
+        [DataMember(Order = 6)]
         double _m3;
+
+        [DataMember(Order = 7)]
         double _m4;
-        double _min = double.PositiveInfinity;
-        double _max = double.NegativeInfinity;
 
         public RunningStatistics()
         {