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Toh4iem9
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//+------------------------------------------------------------------+
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//| LinReg_R2_Dashboard_Pro.mq5 |
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//| Copyright 2026, xxxxxxxx|
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2026, xxxxxxxx"
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#property version "1.00" // Fully functional dynamic Multi-Asset LinReg R2 Thermal Scanner
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#property description "Minimalist and Live-Updating LinReg R2 Multi-Asset Thermal Scanner."
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#property description "Companion dashboard for LinReg_R2_Pro. Displays R2 Trend Quality and Slope Direction."
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#property indicator_chart_window
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#property indicator_buffers 0
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#property indicator_plots 0
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#include <MyIncludes\LinearRegression_Calculator.mqh>
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//--- Input Parameters ---
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input group "Scanner Asset Settings"
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input string InpCustomSymbols = ""; // Custom Symbols (Comma separated, empty for Market Watch)
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input int InpMaxSymbols = 15; // Maximum Symbols to display
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input ENUM_TIMEFRAMES InpTimeframe = PERIOD_M15; // Target Timeframe
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input int InpPeriod = 20; // Regression Period (N)
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input double InpTrendLevel = 0.7; // Strong Trend Level (R2 Threshold)
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input group "Display Settings"
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input int InpTableX = 20; // Table X Offset (Pixels)
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input int InpTableY = 60; // Table Y Offset (Pixels)
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input int InpFontSize = 9; // UI Font Size
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input int InpRefreshSeconds = 3; // Background Timer Fallback (Seconds)
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//--- Global Variables ---
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string g_symbols[];
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int g_symbols_total = 0;
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string g_prefix = "";
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bool g_updating = false;
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ulong g_last_update_ms = 0; // Throttle timestamp
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//+------------------------------------------------------------------+
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//| EnsureDataReady (History sync helper) |
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//+------------------------------------------------------------------+
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bool EnsureDataReady(const string symbol, const ENUM_TIMEFRAMES timeframe, const int required_bars)
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{
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ResetLastError();
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if(!SymbolInfoInteger(symbol, SYMBOL_SELECT))
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{
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SymbolSelect(symbol, true);
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}
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datetime times[];
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int copied = CopyTime(symbol, timeframe, 0, required_bars, times);
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return (copied >= required_bars);
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}
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//+------------------------------------------------------------------+
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//| GetLinRegValues |
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//+------------------------------------------------------------------+
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bool GetLinRegValues(string symbol, ENUM_TIMEFRAMES tf, int period, double &out_r2, double &out_slope)
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{
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int required_bars = period + 20;
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if(!EnsureDataReady(symbol, tf, required_bars))
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return false;
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int htf_bars = iBars(symbol, tf);
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if(htf_bars < required_bars)
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return false;
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int count = MathMin(htf_bars, 300);
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double h_open[], h_high[], h_low[], h_close[];
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datetime h_time[];
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ArrayResize(h_open, count);
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ArrayResize(h_high, count);
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ArrayResize(h_low, count);
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ArrayResize(h_close, count);
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ArrayResize(h_time, count);
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if(CopyTime(symbol, tf, 0, count, h_time) != count ||
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CopyOpen(symbol, tf, 0, count, h_open) != count ||
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CopyHigh(symbol, tf, 0, count, h_high) != count ||
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CopyLow(symbol, tf, 0, count, h_low) != count ||
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CopyClose(symbol, tf, 0, count, h_close) != count)
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{
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return false;
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}
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CLinearRegressionCalculator calc;
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if(!calc.Init(period))
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return false;
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double h_s[], h_r2[], h_f[];
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ArrayResize(h_s, count);
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ArrayResize(h_r2, count);
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ArrayResize(h_f, count);
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calc.CalculateState(count, 0, h_open, h_high, h_low, h_close, PRICE_CLOSE, h_s, h_r2, h_f);
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out_r2 = h_r2[count - 1];
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out_slope = h_s[count - 1];
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return true;
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}
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//+------------------------------------------------------------------+
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//| ParseSymbols |
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//+------------------------------------------------------------------+
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void ParseSymbols()
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{
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ArrayFree(g_symbols);
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if(InpCustomSymbols != "" && InpCustomSymbols != NULL)
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{
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string temp[];
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int split = StringSplit(InpCustomSymbols, ',', temp);
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int valid_count = 0;
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for(int i = 0; i < split; i++)
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{
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string sym = temp[i];
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StringTrimLeft(sym);
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StringTrimRight(sym);
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if(sym != "" && SymbolInfoInteger(sym, SYMBOL_SELECT) != 0)
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{
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ArrayResize(g_symbols, valid_count + 1);
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g_symbols[valid_count] = sym;
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valid_count++;
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}
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if(valid_count >= InpMaxSymbols)
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break;
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}
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g_symbols_total = valid_count;
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}
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else
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{
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int total = SymbolsTotal(true);
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int count = 0;
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for(int i = 0; i < total; i++)
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{
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string sym = SymbolName(i, true);
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if(sym != "" && sym != NULL)
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{
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ArrayResize(g_symbols, count + 1);
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g_symbols[count] = sym;
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count++;
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}
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if(count >= InpMaxSymbols)
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break;
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}
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g_symbols_total = count;
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}
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}
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//+------------------------------------------------------------------+
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//| CreateButton |
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//+------------------------------------------------------------------+
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void CreateButton(string name, string text, int x, int y, int w, int h, color bg_color, color text_color)
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{
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if(ObjectFind(0, name) < 0)
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{
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ObjectCreate(0, name, OBJ_BUTTON, 0, 0, 0);
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ObjectSetInteger(0, name, OBJPROP_CORNER, CORNER_LEFT_UPPER);
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ObjectSetInteger(0, name, OBJPROP_FONTSIZE, InpFontSize);
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ObjectSetString(0, name, OBJPROP_FONT, "Trebuchet MS");
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ObjectSetInteger(0, name, OBJPROP_BORDER_TYPE, BORDER_FLAT);
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ObjectSetInteger(0, name, OBJPROP_SELECTABLE, false);
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}
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ObjectSetInteger(0, name, OBJPROP_XDISTANCE, x);
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ObjectSetInteger(0, name, OBJPROP_YDISTANCE, y);
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ObjectSetInteger(0, name, OBJPROP_XSIZE, w);
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ObjectSetInteger(0, name, OBJPROP_YSIZE, h);
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ObjectSetString(0, name, OBJPROP_TEXT, text);
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ObjectSetInteger(0, name, OBJPROP_BGCOLOR, bg_color);
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ObjectSetInteger(0, name, OBJPROP_COLOR, text_color);
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}
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//+------------------------------------------------------------------+
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//| RenderCell |
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//+------------------------------------------------------------------+
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void RenderCell(string symbol, double r2_val, double slope_val, int x, int y, int w, int h)
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{
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string name = g_prefix + "_" + symbol + "_Val";
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string text = "";
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color bg_color = clrWhite;
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color text_color = clrBlack;
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if(r2_val == EMPTY_VALUE)
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{
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text = "Sync...";
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bg_color = clrWhite;
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text_color = clrSilver;
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}
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else
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{
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string arrow = (slope_val > 0.0) ? "▲ " : ((slope_val < 0.0) ? "▼ " : "■ ");
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text = arrow + DoubleToString(r2_val, 3);
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//--- Dynamic 3-Zone Thermal Palette (Chop = Gray, Weak = Orange, Strong = Lime)
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if(r2_val >= InpTrendLevel)
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{
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bg_color = clrMediumSeaGreen; // Strong Trend (Green)
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text_color = clrWhite;
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}
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else
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if(r2_val <= 0.3)
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{
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bg_color = clrSlateGray; // Chop / Range (Gray)
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text_color = clrWhite;
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}
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else
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{
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bg_color = clrOrange; // Weak Trend / Transition (Orange)
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text_color = clrBlack;
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}
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}
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CreateButton(name, text, x, y, w, h, bg_color, text_color);
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}
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//+------------------------------------------------------------------+
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//| RenderDashboard |
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//+------------------------------------------------------------------+
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void RenderDashboard()
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{
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if(g_updating || g_symbols_total <= 0)
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return;
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g_updating = true;
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int col_w_sym = 100;
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int col_w_val = 90;
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int row_h = 22;
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//--- 1. Render Table Header
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int header_y = InpTableY;
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string tf_name = StringSubstr(EnumToString(InpTimeframe), 7);
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CreateButton(g_prefix + "H_Sym", "Symbol (" + tf_name + ")", InpTableX, header_y, col_w_sym, row_h, clrDarkSlateGray, clrWhite);
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CreateButton(g_prefix + "H_Val", "R2 & Slope", InpTableX + col_w_sym + 2, header_y, col_w_val, row_h, clrDarkSlateGray, clrWhite);
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//--- 2. Loop and Calculate each asset row
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for(int r = 0; r < g_symbols_total; r++)
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{
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string sym = g_symbols[r];
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int row_y = InpTableY + row_h + 2 + (r * (row_h + 2));
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// Symbol Button (Clickable chart switcher)
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CreateButton(g_prefix + "_SymBtn_" + sym, sym, InpTableX, row_y, col_w_sym, row_h, clrLightGray, clrBlack);
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// Get exact real-time Linear Regression R2 and Slope
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double r2_val = EMPTY_VALUE;
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double slope_val = 0.0;
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GetLinRegValues(sym, InpTimeframe, InpPeriod, r2_val, slope_val);
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// Render the thermal cell
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RenderCell(sym, r2_val, slope_val, InpTableX + col_w_sym + 2, row_y, col_w_val, row_h);
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}
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ChartRedraw();
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g_updating = false;
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}
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//+------------------------------------------------------------------+
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//| OnInit |
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//+------------------------------------------------------------------+
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int OnInit()
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{
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g_updating = false;
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g_last_update_ms = 0;
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g_prefix = StringFormat("LRR2D_%I64d_", ChartID()); // Cleaned with dynamic LRR2D prefix
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ObjectsDeleteAll(0, g_prefix);
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ParseSymbols();
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RenderDashboard();
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EventSetTimer(InpRefreshSeconds);
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return(INIT_SUCCEEDED);
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}
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//+------------------------------------------------------------------+
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//| OnDeinit |
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//+------------------------------------------------------------------+
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void OnDeinit(const int reason)
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{
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EventKillTimer();
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ObjectsDeleteAll(0, g_prefix);
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Comment("");
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}
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//+------------------------------------------------------------------+
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//| OnCalculate |
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//+------------------------------------------------------------------+
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int OnCalculate(const int rates_total,
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const int prev_calculated,
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const datetime &time[],
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const double &open[],
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const double &high[],
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const double &low[],
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const double &close[],
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const long &tick_volume[],
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const long &volume[],
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const int &spread[])
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{
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//--- Real-time high frequency tick throttling (Max 5 updates per second / 200ms)
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ulong current_ms = GetTickCount64();
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if(current_ms - g_last_update_ms >= 200)
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{
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g_last_update_ms = current_ms;
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RenderDashboard();
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}
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return(rates_total);
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}
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//+------------------------------------------------------------------+
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//| OnTimer |
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//+------------------------------------------------------------------+
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void OnTimer()
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{
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RenderDashboard();
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}
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//+------------------------------------------------------------------+
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//| OnChartEvent |
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//+------------------------------------------------------------------+
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void OnChartEvent(const int id, const long &lparam, const double &dparam, const string &sparam)
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{
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if(id == CHARTEVENT_OBJECT_CLICK)
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{
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if(StringFind(sparam, g_prefix) == 0 && StringFind(sparam, "_SymBtn_") != -1)
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{
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string symbol = ObjectGetString(0, sparam, OBJPROP_TEXT);
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if(symbol != "" && symbol != NULL)
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{
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ChartSetSymbolPeriod(0, symbol, _Period);
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ObjectSetInteger(0, sparam, OBJPROP_STATE, false);
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ChartRedraw();
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}
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}
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}
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}
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//+------------------------------------------------------------------+
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