last preparation ...
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///////////////////////////////////////////////////////
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// SaherElm IT Center MQL5 Indicator
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// -------------------------------------------
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// Name: X3MA
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// Description: X3MA Trend Detector ...
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//
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// Maintainer:
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// ------------
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// Hadi Khazaee Asl (hadi_khazaee_asl@yahoo.com)
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//
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//////////////////////////////////////////////////////
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//
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// Global Properties ...
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#property copyright "Copyright 2023, SaherElm IT Center"
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#property link "https://saherelm.ir"
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#property version "1.00"
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#property description "SaherElm X3MA Indicator"
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#property strict
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//
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#define ShortName "X3MA"
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//
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// Includes Common Library ...
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#include "../Libraries/x-saherelm.common.lib.mq5"
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//
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// Inputs ...
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//
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// Market ...
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input group "Market";
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input int fastLength = 50; // Fast Length
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input int midLength = 100; // Mid Length
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input int slowLength = 200; // Slow Length
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input int shiftLength = 0; // Shift
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input ENUM_MA_METHOD method = MODE_SMA; // Mode
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input ENUM_APPLIED_PRICE appliedTo = PRICE_CLOSE; // Applied To
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//
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// Presentation ...
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input group "Presentation";
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//
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// Parts ...
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input bool showFast = true; // Show Fast
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input bool showMid = true; // Show Mid
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input bool showSlow = true; // Show Slow
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//
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// Buffers ...
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//
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#property indicator_chart_window
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//
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#property indicator_buffers 3
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#property indicator_plots 3
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//
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// Current ...
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//
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// Fast ...
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#define fastBufferIndex 0
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double fastBuffer[];
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//
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#property indicator_label1 "X3MA F"
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrAqua
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#property indicator_style1 STYLE_DOT
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#property indicator_width1 1
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//
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// Mid ...
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#define midBufferIndex 1
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double midBuffer[];
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//
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#property indicator_label2 "X3MA M"
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#property indicator_type2 DRAW_LINE
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#property indicator_color2 clrOrange
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#property indicator_style2 STYLE_DOT
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#property indicator_width2 1
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//
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// Slow ...
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#define slowBufferIndex 2
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double slowBuffer[];
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//
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#property indicator_label3 "X3MA S"
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#property indicator_type3 DRAW_LINE
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#property indicator_color3 clrMagenta
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#property indicator_style3 STYLE_DOT
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#property indicator_width3 1
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//
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// Variables ...
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//
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int maxLength;
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//
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// Handlers ...
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int fastHandler = INVALID_HANDLE;
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int midHandler = INVALID_HANDLE;
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int slowHandler = INVALID_HANDLE;
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//
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// EVENT Handlers ...
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//
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// Initialization ...
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int OnInit()
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{
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//
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// Validate Inputs ...
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if (!ValidateInputs())
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{
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return INIT_PARAMETERS_INCORRECT;
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}
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//
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if (!InitHandlers())
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{
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return INIT_PARAMETERS_INCORRECT;
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}
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//
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// because in some cases we may have more than one input for
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// calculation and we must prevent any calculation
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// untill we pass the biggest input length, here we get max Input length
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// and then wait until pass it ...
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maxLength = ExtractMaxLengthOfInputs();
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//
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// Define Index Buffers ...
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DefineBuffers();
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//
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// Set Indicator ShortName ...
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SetIndicatorName();
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//
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// Init Succeed ...
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return INIT_SUCCEEDED;
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}
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//
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// DeInitialization ...
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void OnDeinit(const int reason)
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{
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//
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// REASON_PROGRAM 0 The EA has stopped working calling the ExpertRemove() function
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// REASON_REMOVE 1 Program removed from a chart
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// REASON_RECOMPILE 2 Program recompiled
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// REASON_CHARTCHANGE 3 A symbol or a chart period is changed
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// REASON_CHARTCLOSE 4 Chart closed
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// REASON_PARAMETERS 5 Inputs changed by a user
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// REASON_ACCOUNT 6 Another account has been activated or reconnection to the trade server has occurred due to changes in the account settings
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// REASON_TEMPLATE 7 Another chart template applied
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// REASON_INITFAILED 8 The OnInit() handler returned a non-zero value
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// REASON_CLOSE 9 Terminal closed
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//
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// Release Handlers ...
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IndicatorRelease(fastHandler);
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IndicatorRelease(midHandler);
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IndicatorRelease(slowHandler);
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}
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//
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// Calculating what we want ...
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int OnCalculate(
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const int rates_total, // Total Bars on Chart ...
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const int prev_calculated, // Total Calculated Bars on Charts ...
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const datetime &time[], // History of Open Time ...
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const double &open[], // History of Open Price ...
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const double &high[], // History of High Price ...
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const double &low[], // History of Low Price ...
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const double &close[], // History of Close Price ...
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const long &tick_volume[], // History of Tick Volumes on Bar ...
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const long &volume[], // History of Trade Volumes ...
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const int &spread[] // History of Spread Price ...
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)
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{
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//
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ArraySetAsSeries(low, true);
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ArraySetAsSeries(open, true);
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ArraySetAsSeries(high, true);
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ArraySetAsSeries(close, true);
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//
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// this counts Available Bars ...
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int limit;
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//
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// Validate Calculated Bars ...
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bool isPassedRequiredCalculatedBars =
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//
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BarsCalculated(fastHandler) >= maxLength &&
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BarsCalculated(midHandler) >= maxLength &&
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BarsCalculated(slowHandler) >= maxLength
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//
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;
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if (!isPassedRequiredCalculatedBars)
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{
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return prev_calculated;
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}
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//
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limit =
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(prev_calculated > rates_total || prev_calculated <= 0)
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? rates_total
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: (rates_total - prev_calculated) + 1;
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//
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// Buffers Copy ...
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//
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int copiedFasts = CopyBuffer(fastHandler, 0, 0, limit, fastBuffer);
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int copiedMids = CopyBuffer(midHandler, 0, 0, limit, midBuffer);
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int copiedSlows = CopyBuffer(slowHandler, 0, 0, limit, slowBuffer);
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//
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// Validate Copied Items ...
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bool isPassedRequiredCopiedItems =
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//
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copiedFasts > 0 &&
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copiedMids > 0 &&
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copiedSlows > 0
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//
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;
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if (!isPassedRequiredCopiedItems)
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{
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return prev_calculated;
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}
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//
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// Main Loop ...
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for (int i = limit - 1; i >= 0 && !IsStopped(); i--)
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{
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//
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}
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//
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return rates_total;
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}
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//
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// CUSTOM Functions ...
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//
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// Validate Input Args for Initialization ...
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bool ValidateInputs()
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{
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//
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bool result =
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//
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fastLength > 2 &&
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midLength > fastLength &&
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slowLength > midLength &&
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//
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shiftLength >= 0
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//
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;
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//
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return result;
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}
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//
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// Retrieve all Exists Input Max Length ...
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// use for Start Of Drawing ...
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int ExtractMaxLengthOfInputs()
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{
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//
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int result = 0;
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//
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// Current ...
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result = MathMax(fastLength, midLength);
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result = MathMax(result, slowLength);
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//
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return result;
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}
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//
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// Set Indicator Short Name and also we can define Buffers Labels ...
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void SetIndicatorName()
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{
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//
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IndicatorSetInteger(INDICATOR_DIGITS, _Digits);
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IndicatorSetString(INDICATOR_SHORTNAME, ShortName);
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}
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//
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// Define Indexes and Styles ...
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void DefineBuffers()
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{
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//
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// Fast ...
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bool canShowFast = showFast;
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ENUM_DRAW_TYPE fastDrawType = canShowFast ? DRAW_LINE : DRAW_NONE;
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ArraySetAsSeries(fastBuffer, true);
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SetIndexBuffer(fastBufferIndex, fastBuffer, INDICATOR_DATA);
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PlotIndexSetDouble(fastBufferIndex, PLOT_EMPTY_VALUE, 0);
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PlotIndexSetInteger(fastBufferIndex, PLOT_DRAW_BEGIN, maxLength);
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PlotIndexSetInteger(fastBufferIndex, PLOT_SHOW_DATA, canShowFast);
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PlotIndexSetInteger(fastBufferIndex, PLOT_DRAW_TYPE, fastDrawType);
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//
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// Mid ...
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bool canShowMid = showMid;
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ENUM_DRAW_TYPE midDrawType = canShowMid ? DRAW_LINE : DRAW_NONE;
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ArraySetAsSeries(midBuffer, true);
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SetIndexBuffer(midBufferIndex, midBuffer, INDICATOR_DATA);
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PlotIndexSetDouble(midBufferIndex, PLOT_EMPTY_VALUE, 0);
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PlotIndexSetInteger(midBufferIndex, PLOT_DRAW_BEGIN, maxLength);
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PlotIndexSetInteger(midBufferIndex, PLOT_SHOW_DATA, canShowMid);
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PlotIndexSetInteger(midBufferIndex, PLOT_DRAW_TYPE, midDrawType);
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//
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// Slow ...
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bool canShowSlow = showSlow;
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ENUM_DRAW_TYPE slowDrawType = canShowSlow ? DRAW_LINE : DRAW_NONE;
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ArraySetAsSeries(slowBuffer, true);
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SetIndexBuffer(slowBufferIndex, slowBuffer, INDICATOR_DATA);
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PlotIndexSetDouble(slowBufferIndex, PLOT_EMPTY_VALUE, 0);
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PlotIndexSetInteger(slowBufferIndex, PLOT_DRAW_BEGIN, maxLength);
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PlotIndexSetInteger(slowBufferIndex, PLOT_SHOW_DATA, canShowSlow);
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PlotIndexSetInteger(slowBufferIndex, PLOT_DRAW_TYPE, slowDrawType);
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}
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//
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// Initial Indicator Handlers ...
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bool InitHandlers()
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{
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//
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bool result = false;
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//
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// Initialize Handlers ...
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//
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// Fast ...
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fastHandler = iMA(
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_Symbol,
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_Period,
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fastLength,
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shiftLength,
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method,
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appliedTo //
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);
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//
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// Mid ...
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midHandler = iMA(
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_Symbol,
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_Period,
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midLength,
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shiftLength,
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method,
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appliedTo //
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);
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//
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// Slow ...
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slowHandler = iMA(
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_Symbol,
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_Period,
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slowLength,
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shiftLength,
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method,
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appliedTo //
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);
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//
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result =
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//
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fastHandler != INVALID_HANDLE &&
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midHandler != INVALID_HANDLE &&
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slowHandler != INVALID_HANDLE
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//
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;
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//
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return result;
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}
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//
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