new files added

2026-07-29 05:27:43 +00:00 · 2025-08-30 13:18:02 +02:00
parent 2bbf3abf4e
commit 80a42c223d
1 changed files with 127 additions and 0 deletions
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+//+------------------------------------------------------------------+
+//|                                      StandardDeviationChannel.mq5|
+//|                      Copyright 2025, xxxxxxxx                    |
+//|                                                                  |
+//+------------------------------------------------------------------+
+#property copyright "Copyright 2025, xxxxxxxx"
+#property link      ""
+#property version   "1.00"
+#property description "Draws a Standard Deviation Channel (based on Linear Regression)."
+#property indicator_chart_window
+#property indicator_buffers 0
+#property indicator_plots   0
+
+//--- Input Parameters ---
+input int    InpRegressionPeriod = 100;   // Period for the regression calculation
+input double InpDeviations       = 2.0;     // Number of standard deviations for the channel
+input group  "Channel Extensions"
+input bool   InpRayRight         = false;   // Extend channel to the right
+input bool   InpRayLeft          = false;   // Extend channel to the left
+
+//--- Global Variables ---
+int       g_ExtPeriod;
+double    g_ExtDeviations;
+string    g_channel_name;
+datetime  g_last_update_time;
+
+//+------------------------------------------------------------------+
+//| Custom indicator initialization function.                        |
+//+------------------------------------------------------------------+
+int OnInit()
+  {
+   g_ExtPeriod      = (InpRegressionPeriod < 2) ? 2 : InpRegressionPeriod;
+   g_ExtDeviations  = (InpDeviations <= 0) ? 2.0 : InpDeviations;
+
+   g_channel_name = "StdDevChannel_" + IntegerToString(ChartID()) + "_" + IntegerToString(GetTickCount());
+   g_last_update_time = 0;
+
+   IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("StdDev Ch(%d, %.1f)", g_ExtPeriod, g_ExtDeviations));
+
+   EventSetTimer(1);
+
+   return(INIT_SUCCEEDED);
+  }
+
+//+------------------------------------------------------------------+
+//| Custom indicator deinitialization function.                      |
+//+------------------------------------------------------------------+
+void OnDeinit(const int reason)
+  {
+   EventKillTimer();
+   ObjectDelete(0, g_channel_name);
+   ChartRedraw();
+  }
+
+//+------------------------------------------------------------------+
+//| Timer event handler.                                             |
+//+------------------------------------------------------------------+
+void OnTimer()
+  {
+   UpdateChannel();
+  }
+
+//+------------------------------------------------------------------+
+//| Main calculation function.                                       |
+//+------------------------------------------------------------------+
+int OnCalculate(const int rates_total,
+                const int prev_calculated,
+                const datetime &time[],
+                const double &open[],
+                const double &high[],
+                const double &low[],
+                const double &close[],
+                const long &tick_volume[],
+                const long &volume[],
+                const int &spread[])
+  {
+   if(rates_total < g_ExtPeriod)
+      return(0);
+
+   datetime last_bar_time = time[rates_total - 1];
+   if(last_bar_time > g_last_update_time)
+     {
+      UpdateChannel();
+      g_last_update_time = last_bar_time;
+     }
+
+   return(rates_total);
+  }
+
+//+------------------------------------------------------------------+
+//| Updates the position and properties of the channel.              |
+//+------------------------------------------------------------------+
+void UpdateChannel()
+  {
+   if(Bars(_Symbol, _Period) < g_ExtPeriod)
+      return;
+
+   datetime time1 = iTime(_Symbol, _Period, g_ExtPeriod - 1);
+   datetime time2 = iTime(_Symbol, _Period, 0);
+
+   if(ObjectFind(0, g_channel_name) < 0)
+     {
+      if(!ObjectCreate(0, g_channel_name, OBJ_STDDEVCHANNEL, 0, time1, 0, time2, 0))
+        {
+         Print("Error creating std dev channel object: ", GetLastError());
+         return;
+        }
+
+      ObjectSetInteger(0, g_channel_name, OBJPROP_COLOR, clrRed);
+      ObjectSetInteger(0, g_channel_name, OBJPROP_STYLE, STYLE_SOLID);
+      ObjectSetInteger(0, g_channel_name, OBJPROP_FILL, false);
+      ObjectSetInteger(0, g_channel_name, OBJPROP_SELECTABLE, false);
+     }
+
+   ObjectSetInteger(0, g_channel_name, OBJPROP_TIME, 0, time1);
+   ObjectSetInteger(0, g_channel_name, OBJPROP_TIME, 1, time2);
+   ObjectSetDouble(0, g_channel_name, OBJPROP_DEVIATION, g_ExtDeviations);
+   ObjectSetInteger(0, g_channel_name, OBJPROP_RAY_RIGHT, InpRayRight);
+   ObjectSetInteger(0, g_channel_name, OBJPROP_RAY_LEFT, InpRayLeft);
+
+// The OBJ_STDDEVCHANNEL object uses PRICE_CLOSE and its own internal period for the regression
+// We don't need to set OBJPROP_PERIOD as it's implicitly handled by the time coordinates.
+
+   ChartRedraw();
+  }
+//+------------------------------------------------------------------+
+//+------------------------------------------------------------------+