From c2bbc274b5e763c7c8689b195f7b79647d21d8c0 Mon Sep 17 00:00:00 2001
From: HojouFotytu <36724681+HojouFotytu@users.noreply.github.com>
Date: Sun, 31 Jan 2021 01:32:36 +0900
Subject: [PATCH] Ignore Ouliers

---
 Core/DataObjects/PTMagicData.cs          |  3 +++
 Core/Main/PTMagic.cs                     |  2 +-
 Core/MarketAnalyzer/BaseAnalyzer.cs      | 24 +++++++++++++++++++++++-
 Monitor/Pages/SettingsAnalyzer.cshtml.cs |  1 +
 4 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/Core/DataObjects/PTMagicData.cs b/Core/DataObjects/PTMagicData.cs
index c05e084..3a98e25 100644
--- a/Core/DataObjects/PTMagicData.cs
+++ b/Core/DataObjects/PTMagicData.cs
@@ -146,6 +146,9 @@ namespace Core.Main.DataObjects.PTMagicData
     [DefaultValue("")]
     public string AllowedMarkets { get; set; } = "";
 
+    [DefaultValue(0)]
+    public int IgnoreOutlier { get; set; } = 0;
+
     [DefaultValue(true)]
     public bool ExcludeMainCurrency { get; set; } = true;
   }
diff --git a/Core/Main/PTMagic.cs b/Core/Main/PTMagic.cs
index 7bdf293..2bffb45 100644
--- a/Core/Main/PTMagic.cs
+++ b/Core/Main/PTMagic.cs
@@ -1310,7 +1310,7 @@ namespace Core.Main
       // CoinMarketCap
       this.GlobalMarketTrendChanges = BaseAnalyzer.BuildMarketTrends("CoinMarketCap", this.LastRuntimeSummary.MainMarket, new List<string>(), "", true, this.GlobalMarketTrendChanges, this.PTMagicConfiguration, this.Log);
 
-      // Bittrex
+      // Exchange
       foreach (MarketTrend marketTrend in this.PTMagicConfiguration.AnalyzerSettings.MarketAnalyzer.MarketTrends.FindAll(mt => mt.Platform.Equals("Exchange", StringComparison.InvariantCultureIgnoreCase)))
       {
         if (this.SingleMarketTrendChanges.ContainsKey(marketTrend.Name))
diff --git a/Core/MarketAnalyzer/BaseAnalyzer.cs b/Core/MarketAnalyzer/BaseAnalyzer.cs
index 411f5c9..9ef9931 100644
--- a/Core/MarketAnalyzer/BaseAnalyzer.cs
+++ b/Core/MarketAnalyzer/BaseAnalyzer.cs
@@ -429,7 +429,29 @@ namespace Core.MarketAnalyzer
             if (marketTrendChanges != null && marketTrendChanges.Count > 0)
             {
 
-              double averageTrendChange = marketTrendChanges.Average(mtc => mtc.TrendChange);
+
+            double totalTrendChange = 0;
+
+            foreach (MarketTrendChange marketTrendChange in marketTrendChanges) 
+              {
+                if (marketTrend.IgnoreOutlier != 0) 
+                {
+                  if ((marketTrendChange.TrendChange > marketTrend.IgnoreOutlier) || (marketTrendChange.TrendChange < (marketTrend.IgnoreOutlier * -1)))
+                  {
+                    log.DoLogWarn("Market trend '" + marketTrend.Name + "' is ignoring the outlier '" + marketTrendChange.Market + ".");
+                  }
+                  else
+                  {
+                    totalTrendChange += marketTrendChange.TrendChange;
+                  }
+                }
+                else
+                {
+                    totalTrendChange += marketTrendChange.TrendChange;
+                }
+              }
+
+              double averageTrendChange = totalTrendChange / marketTrendChanges.Count;
 
               result.Add(marketTrend.Name, averageTrendChange);
 
diff --git a/Monitor/Pages/SettingsAnalyzer.cshtml.cs b/Monitor/Pages/SettingsAnalyzer.cshtml.cs
index a6b1a4b..86a09b4 100644
--- a/Monitor/Pages/SettingsAnalyzer.cshtml.cs
+++ b/Monitor/Pages/SettingsAnalyzer.cshtml.cs
@@ -77,6 +77,7 @@ namespace Monitor.Pages
         mt.TrendCurrency = HttpContext.Request.Form[mtFormKey + "TrendCurrency"];
         mt.IgnoredMarkets = HttpContext.Request.Form[mtFormKey + "IgnoredMarkets"];
         mt.AllowedMarkets = HttpContext.Request.Form[mtFormKey + "AllowedMarkets"];
+        mt.IgnoreOutlier = SystemHelper.TextToInteger(HttpContext.Request.Form[mtFormKey + "IgnoreOutlier"], mt.IgnoreOutlier);
         mt.DisplayGraph = HttpContext.Request.Form[mtFormKey + "DisplayGraph"].Equals("on");
         mt.ExcludeMainCurrency = HttpContext.Request.Form[mtFormKey + "ExcludeMainCurrency"].Equals("on");