new files added

2026-07-27 20:47:44 +00:00 · 2025-08-30 00:00:16 +02:00
parent 64c4a0a2ea
commit ae3e8bf5d0
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+//+------------------------------------------------------------------+
+//|                                     LinearRegressionChannel.mq5  |
+//|                      Copyright 2025, xxxxxxxx                    |
+//|                                                                  |
+//+------------------------------------------------------------------+
+#property copyright "Copyright 2025, xxxxxxxx"
+#property link      ""
+#property version   "3.00" // Final version using OBJ_REGRESSION with smart update
+#property description "Draws a clean Linear Regression Channel, updated on new bars."
+#property indicator_chart_window
+#property indicator_buffers 0 // No buffers needed for plotting
+#property indicator_plots   0 // No plots needed
+
+//--- Input Parameters ---
+input int    InpRegressionPeriod = 100;
+input double InpDeviations       = 2.0;
+// Note: OBJ_REGRESSION always uses PRICE_CLOSE, so InpAppliedPrice is not needed.
+
+//--- Global Variables ---
+int       g_ExtPeriod;
+double    g_ExtDeviations;
+string    g_channel_name;
+datetime  g_last_update_time; // To track the time of the last update
+
+//+------------------------------------------------------------------+
+//| Custom indicator initialization function.                        |
+//+------------------------------------------------------------------+
+int OnInit()
+  {
+   g_ExtPeriod      = (InpRegressionPeriod < 2) ? 2 : InpRegressionPeriod;
+   g_ExtDeviations  = (InpDeviations <= 0) ? 2.0 : InpDeviations;
+
+   g_channel_name = "LinRegChannel_" + IntegerToString(ChartID()) + "_" + IntegerToString(GetTickCount());
+   g_last_update_time = 0;
+
+   IndicatorSetString(INDICATOR_SHORTNAME, StringFormat("LinReg(%d, %.1f)", g_ExtPeriod, g_ExtDeviations));
+
+   return(INIT_SUCCEEDED);
+  }
+
+//+------------------------------------------------------------------+
+//| Custom indicator deinitialization function.                      |
+//+------------------------------------------------------------------+
+void OnDeinit(const int reason)
+  {
+// Clean up the chart object
+   ObjectDelete(0, g_channel_name);
+   ChartRedraw();
+  }
+
+//+------------------------------------------------------------------+
+//| 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);
+
+//--- Check if a new bar has appeared ---
+   datetime last_bar_time = time[rates_total - 1];
+   if(last_bar_time > g_last_update_time)
+     {
+      UpdateRegressionChannel(rates_total, time);
+      g_last_update_time = last_bar_time;
+     }
+
+   return(rates_total);
+  }
+
+//+------------------------------------------------------------------+
+//| Updates the position and properties of the regression channel.   |
+//+------------------------------------------------------------------+
+void UpdateRegressionChannel(int rates_total, const datetime &time[])
+  {
+// Define the start and end time for the channel
+   datetime time1 = time[rates_total - g_ExtPeriod];
+   datetime time2 = time[rates_total - 1];
+
+// Check if the object exists. If not, create it.
+   if(ObjectFind(0, g_channel_name) < 0)
+     {
+      if(!ObjectCreate(0, g_channel_name, OBJ_REGRESSION, 0, time1, 0, time2, 0))
+        {
+         Print("Error creating regression channel object: ", GetLastError());
+         return;
+        }
+
+      // Set visual properties only once on creation
+      ObjectSetInteger(0, g_channel_name, OBJPROP_COLOR, clrRed);
+      ObjectSetInteger(0, g_channel_name, OBJPROP_STYLE, STYLE_SOLID);
+      ObjectSetDouble(0, g_channel_name, OBJPROP_DEVIATION, g_ExtDeviations);
+      ObjectSetInteger(0, g_channel_name, OBJPROP_FILL, false);
+      ObjectSetInteger(0, g_channel_name, OBJPROP_RAY_RIGHT, false); // Do not extend to the right
+      ObjectSetInteger(0, g_channel_name, OBJPROP_SELECTABLE, false);
+     }
+   else // If it exists, just move its time coordinates
+     {
+      ObjectSetInteger(0, g_channel_name, OBJPROP_TIME, 0, time1);
+      ObjectSetInteger(0, g_channel_name, OBJPROP_TIME, 1, time2);
+     }
+
+   ChartRedraw();
+  }
+//+------------------------------------------------------------------+
+//+------------------------------------------------------------------+