| //+------------------------------------------------------------------+
|
| //| MurreyMath Channel.mq5 |
|
| //| Copyright 2009-2025, MetaQuotes Ltd |
|
| //| https://www.mql5.com |
|
| //+------------------------------------------------------------------+
|
| #property copyright "2009-2025, MetaQuotes Ltd"
|
| #property link "http://www.mql5.com"
|
| #property description "Murrey Math Channels based on https://www.mql5.com/ru/code/8157"
|
| #property description "Author of calculations is Vladyslav Goshkov (https://www.mql5.com/en/users/vladislavvg)"
|
|
|
| //--- input parameters
|
| input int InpCalculationPeriod=64; // calculation period
|
| input bool InpShowExtraLevels =false; // show all levels
|
| input bool InpShowLabel =true; // show price of level
|
|
|
| //--- properties
|
| #property indicator_chart_window
|
| #property indicator_buffers 13
|
| #property indicator_plots 13
|
| #property indicator_type1 DRAW_LINE
|
| #property indicator_color1 clrDarkBlue
|
|
|
| #property indicator_type2 DRAW_LINE
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| #property indicator_color2 clrDarkViolet
|
|
|
| #property indicator_type3 DRAW_LINE
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| #property indicator_color3 clrMediumSlateBlue
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| #property indicator_width3 2
|
|
|
| #property indicator_type4 DRAW_LINE
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| #property indicator_color4 clrFireBrick
|
|
|
| #property indicator_type5 DRAW_LINE
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| #property indicator_color5 clrRed
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| #property indicator_width5 2
|
|
|
| #property indicator_type6 DRAW_LINE
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| #property indicator_color6 clrGreen
|
|
|
| #property indicator_type7 DRAW_LINE
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| #property indicator_color7 clrDarkGray
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| #property indicator_width7 2
|
|
|
| #property indicator_type8 DRAW_LINE
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| #property indicator_color8 clrGreen
|
|
|
| #property indicator_type9 DRAW_LINE
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| #property indicator_color9 clrRed
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| #property indicator_width9 2
|
|
|
| #property indicator_type10 DRAW_LINE
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| #property indicator_color10 clrFireBrick
|
|
|
| #property indicator_type11 DRAW_LINE
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| #property indicator_color11 clrMediumSlateBlue
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| #property indicator_width11 2
|
|
|
| #property indicator_type12 DRAW_LINE
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| #property indicator_color12 clrDarkViolet
|
|
|
| #property indicator_type13 DRAW_LINE
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| #property indicator_color13 clrDarkBlue
|
|
|
| //---labels
|
| #property indicator_label1 "[+2/8]"
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| #property indicator_label2 "[+1/8]"
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| #property indicator_label3 "[8/8]"
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| #property indicator_label4 "[7/8]"
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| #property indicator_label5 "[6/8]"
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| #property indicator_label6 "[5/8]"
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| #property indicator_label7 "[4/8]"
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| #property indicator_label8 "[3/8]"
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| #property indicator_label9 "[2/8]"
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| #property indicator_label10 "[1/8]"
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| #property indicator_label11 "[0/8]"
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| #property indicator_label12 "[-1/8]"
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| #property indicator_label13 "[-2/8]"
|
|
|
| //--- indicator buffers
|
| double Ext1Buffer[];
|
| double Ext2Buffer[];
|
| double Ext3Buffer[];
|
| double Ext4Buffer[];
|
| double Ext5Buffer[];
|
| double Ext6Buffer[];
|
| double Ext7Buffer[];
|
| double Ext8Buffer[];
|
| double Ext9Buffer[];
|
| double Ext10Buffer[];
|
| double Ext11Buffer[];
|
| double Ext12Buffer[];
|
| double Ext13Buffer[];
|
|
|
| //--- unique prefix to identify indicator objects
|
| string ExtPrefixUniq;
|
|
|
| //+------------------------------------------------------------------+
|
| //| Custom indicator initialization function |
|
| //+------------------------------------------------------------------+
|
| int OnInit()
|
| {
|
| //--- check current timeframe
|
| if(PeriodSeconds()>PeriodSeconds(PERIOD_D1))
|
| {
|
| Alert("Timeframe of chart must be D1 or lower. Exit");
|
| return(INIT_FAILED);
|
| }
|
|
|
| //--- define buffers
|
| if(InpShowExtraLevels)
|
| {
|
| SetIndexBuffer(0, Ext1Buffer);
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| SetIndexBuffer(1, Ext2Buffer);
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| SetIndexBuffer(2, Ext3Buffer);
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| SetIndexBuffer(3, Ext4Buffer);
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| SetIndexBuffer(4, Ext5Buffer);
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| SetIndexBuffer(5, Ext6Buffer);
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| SetIndexBuffer(6, Ext7Buffer);
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| SetIndexBuffer(7, Ext8Buffer);
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| SetIndexBuffer(8, Ext9Buffer);
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| SetIndexBuffer(9, Ext10Buffer);
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| SetIndexBuffer(10, Ext11Buffer);
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| SetIndexBuffer(11, Ext12Buffer);
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| SetIndexBuffer(12, Ext13Buffer);
|
| }
|
| else
|
| {
|
| SetIndexBuffer(0, Ext1Buffer, INDICATOR_CALCULATIONS);
|
| SetIndexBuffer(1, Ext2Buffer, INDICATOR_CALCULATIONS);
|
| SetIndexBuffer(2, Ext3Buffer);
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| SetIndexBuffer(3, Ext4Buffer);
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| SetIndexBuffer(4, Ext5Buffer);
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| SetIndexBuffer(5, Ext6Buffer);
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| SetIndexBuffer(6, Ext7Buffer);
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| SetIndexBuffer(7, Ext8Buffer);
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| SetIndexBuffer(8, Ext9Buffer);
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| SetIndexBuffer(9, Ext10Buffer);
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| SetIndexBuffer(10, Ext11Buffer);
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| SetIndexBuffer(11, Ext12Buffer, INDICATOR_CALCULATIONS);
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| SetIndexBuffer(12, Ext13Buffer, INDICATOR_CALCULATIONS);
|
| }
|
|
|
| //--- indicator name
|
| IndicatorSetString(INDICATOR_SHORTNAME, "Murrey Math Channels");
|
| //--- number of digits of indicator value
|
| IndicatorSetInteger(INDICATOR_DIGITS, _Digits);
|
|
|
| //--- prepare prefix for objects
|
| string number=StringFormat("%I64d", GetTickCount64());
|
| ExtPrefixUniq=StringSubstr(number, StringLen(number)-4);
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| ExtPrefixUniq=ExtPrefixUniq+"_MM";
|
| Print("Indicator \"Murrey Math Channels\" started, prefix=", ExtPrefixUniq);
|
|
|
| return(INIT_SUCCEEDED);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Custom indicator iteration function |
|
| //+------------------------------------------------------------------+
|
| int OnCalculate(const int rates_total,
|
| const int prev_calculated,
|
| const datetime &time[],
|
| const double &open[],
|
| const double &high[],
|
| const double &low[],
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| const double &close[],
|
| const long &tick_volume[],
|
| const long &volume[],
|
| const int &spread[])
|
| {
|
| int start;
|
| //--- if this is the first calculation of the indicator, fill buffers with empty initial values
|
| if(prev_calculated==0)
|
| {
|
| FillBuffers(EMPTY_VALUE);
|
| //--- shift from the beginning by the required number of bars
|
| start=InpCalculationPeriod+1;
|
| }
|
| else
|
| {
|
| //--- if the indicator has previously been calculated, calculate values for the last 2 bars
|
| start=prev_calculated-2;
|
| }
|
|
|
| //--- calculate levels for all bars in a loop
|
| int i=start;
|
| for(; i<rates_total; i++)
|
| {
|
| //--- calculate parameters
|
| double min=low[ArrayMinimum(low, i-InpCalculationPeriod, InpCalculationPeriod)];
|
| double max=high[ArrayMaximum(high, i-InpCalculationPeriod, InpCalculationPeriod)];
|
| double fractal=DetermineFractal(max);
|
| double range=max-min;
|
| double sum=MathFloor(MathLog(fractal/range)/MathLog(2));
|
| double octave=fractal*(MathPow(0.5, sum));
|
| double mn=MathFloor(min/octave)*octave;
|
| double mx=mn+(2*octave);
|
| if((mn+octave)>=max)
|
| mx=mn+octave;
|
|
|
| //--- calculation of Resistance level
|
| double x1=0, x2=0, x3=0, x4=0, x5=0, x6=0;
|
| if((min>=(3*(mx-mn)/16+mn)) && (max<=(9*(mx-mn)/16+mn)))
|
| x2=mn+(mx-mn)/2;
|
| if((min>=(mn-(mx-mn)/8)) && (max<=(5*(mx-mn)/8+mn)) && (x2==0))
|
| x1=mn+(mx-mn)/2;
|
| if((min>=(mn+7*(mx-mn)/16)) && (max<=(13*(mx-mn)/16+mn)))
|
| x4=mn+3*(mx-mn)/4;
|
| if((min>=(mn+3*(mx-mn)/8)) && (max<=(9*(mx-mn)/8+mn)) && (x4==0))
|
| x5=mx;
|
| if((min>=(mn+(mx-mn)/8)) && (max<=(7*(mx-mn)/8+mn)) && (x1==0) && (x2==0) && (x4==0) && (x5==0))
|
| x3=mn+3*(mx-mn)/4;
|
| if((x1+x2+x3+x4+x5)==0)
|
| x6=mx;
|
| double resistance_level=x1+x2+x3+x4+x5+x6;
|
|
|
| //--- calculation of Support level
|
| double y1=0, y2=0, y3=0, y4=0, y5=0, y6=0;
|
| if(x1>0)
|
| y1=mn;
|
| if(x2>0)
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| y2=mn+(mx-mn)/4;
|
| if(x3>0)
|
| y3=mn+(mx-mn)/4;
|
| if(x4>0)
|
| y4=mn+(mx-mn)/2;
|
| if(x5>0)
|
| y5=mn+(mx-mn)/2;
|
| if((resistance_level>0) && ((y1+y2+y3+y4+y5)==0))
|
| y6=mn;
|
| double support_level=y1+y2+y3+y4+y5+y6;
|
|
|
| //--- divider of MM levels
|
| double divide_mml=(resistance_level-support_level)/8;
|
|
|
| //--- write values into buffers
|
| Ext13Buffer[i]=support_level-2*divide_mml;
|
| Ext12Buffer[i]=Ext13Buffer[i]+divide_mml;
|
| Ext11Buffer[i]=Ext12Buffer[i]+divide_mml;
|
| Ext10Buffer[i]=Ext11Buffer[i]+divide_mml;
|
| Ext9Buffer[i]=Ext10Buffer[i]+divide_mml;
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| Ext8Buffer[i]=Ext9Buffer[i]+divide_mml;
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| Ext7Buffer[i]=Ext8Buffer[i]+divide_mml;
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| Ext6Buffer[i]=Ext7Buffer[i]+divide_mml;
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| Ext5Buffer[i]=Ext6Buffer[i]+divide_mml;
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| Ext4Buffer[i]=Ext5Buffer[i]+divide_mml;
|
| Ext3Buffer[i]=Ext4Buffer[i]+divide_mml;
|
| Ext2Buffer[i]=Ext3Buffer[i]+divide_mml;
|
| Ext1Buffer[i]=Ext2Buffer[i]+divide_mml;
|
|
|
| //--- remove line clutter
|
| if(Ext1Buffer[i]!=Ext1Buffer[i-1])
|
| Ext1Buffer[i-1]=EMPTY_VALUE;
|
| if(Ext2Buffer[i]!=Ext2Buffer[i-1])
|
| Ext2Buffer[i-1]=EMPTY_VALUE;
|
| if(Ext3Buffer[i]!=Ext3Buffer[i-1])
|
| Ext3Buffer[i-1]=EMPTY_VALUE;
|
| if(Ext4Buffer[i]!=Ext4Buffer[i-1])
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| Ext4Buffer[i-1]=EMPTY_VALUE;
|
| if(Ext5Buffer[i]!=Ext5Buffer[i-1])
|
| Ext5Buffer[i-1]=EMPTY_VALUE;
|
| if(Ext6Buffer[i]!=Ext6Buffer[i-1])
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| Ext6Buffer[i-1]=EMPTY_VALUE;
|
| if(Ext7Buffer[i]!=Ext7Buffer[i-1])
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| Ext7Buffer[i-1]=EMPTY_VALUE;
|
| if(Ext8Buffer[i]!=Ext8Buffer[i-1])
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| Ext8Buffer[i-1]=EMPTY_VALUE;
|
| if(Ext9Buffer[i]!=Ext9Buffer[i-1])
|
| Ext9Buffer[i-1]=EMPTY_VALUE;
|
| if(Ext10Buffer[i]!=Ext10Buffer[i-1])
|
| Ext10Buffer[i-1]=EMPTY_VALUE;
|
| if(Ext11Buffer[i]!=Ext11Buffer[i-1])
|
| Ext11Buffer[i-1]=EMPTY_VALUE;
|
| if(Ext12Buffer[i]!=Ext12Buffer[i-1])
|
| Ext12Buffer[i-1]=EMPTY_VALUE;
|
| if(Ext13Buffer[i]!=Ext13Buffer[i-1])
|
| Ext13Buffer[i-1]=EMPTY_VALUE;
|
| }
|
|
|
| //--- draw labels on levels
|
| if(InpShowLabel)
|
| {
|
| ShowPriceLevels(time[rates_total-1], rates_total-1);
|
| ChartRedraw();
|
| }
|
|
|
| //--- succesfully calculated
|
| return(rates_total);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Initialize buffers with initial values |
|
| //+------------------------------------------------------------------+
|
| void FillBuffers(double value=0)
|
| {
|
| int count=ArraySize(Ext1Buffer);
|
| ArrayFill(Ext1Buffer, 0, count, value);
|
| ArrayFill(Ext2Buffer, 0, count, value);
|
| ArrayFill(Ext3Buffer, 0, count, value);
|
| ArrayFill(Ext4Buffer, 0, count, value);
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| ArrayFill(Ext5Buffer, 0, count, value);
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| ArrayFill(Ext6Buffer, 0, count, value);
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| ArrayFill(Ext7Buffer, 0, count, value);
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| ArrayFill(Ext8Buffer, 0, count, value);
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| ArrayFill(Ext9Buffer, 0, count, value);
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| ArrayFill(Ext10Buffer, 0, count, value);
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| ArrayFill(Ext11Buffer, 0, count, value);
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| ArrayFill(Ext12Buffer, 0, count, value);
|
| ArrayFill(Ext13Buffer, 0, count, value);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Determine the fractal |
|
| //+------------------------------------------------------------------+
|
| double DetermineFractal(double value)
|
| {
|
| if(value<=250000 && value>25000)
|
| return(100000);
|
|
|
| if(value<=25000 && value>2500)
|
| return(10000);
|
|
|
| if(value<=2500 && value>250)
|
| return(1000);
|
|
|
| if(value<=250 && value>25)
|
| return(100);
|
|
|
| if(value<=25 && value>12.5)
|
| return(12.5);
|
|
|
| if(value<=12.5 && value>6.25)
|
| return(12.5);
|
|
|
| if(value<=6.25 && value>3.125)
|
| return(6.25);
|
|
|
| if(value<=3.125 && value>1.5625)
|
| return(3.125);
|
|
|
| if(value<=1.5625 && value>0.390625)
|
| return(1.5625);
|
|
|
| if(value<=0.390625 && value>0)
|
| return(0.1953125);
|
|
|
| return(0);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Custom indicator deinitialization function |
|
| //+------------------------------------------------------------------+
|
| void OnDeinit(const int reason)
|
| {
|
| //--- delete all our graphical objects after use
|
| Print("Indicator \"Murrey Math Channels\" stopped, delete all objects with prefix=", ExtPrefixUniq);
|
| ObjectsDeleteAll(0, ExtPrefixUniq, 0, OBJ_ARROW_RIGHT_PRICE);
|
| ChartRedraw(0);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Show prices' levels |
|
| //+------------------------------------------------------------------+
|
| void ShowPriceLevels(datetime time, int last_index)
|
| {
|
| ShowRightPrice(ExtPrefixUniq+" [8/8]", time, Ext3Buffer[last_index], clrMediumSlateBlue);
|
| ShowRightPrice(ExtPrefixUniq+" [7/8]", time, Ext4Buffer[last_index], clrFireBrick);
|
| ShowRightPrice(ExtPrefixUniq+" [6/8]", time, Ext5Buffer[last_index], clrRed);
|
| ShowRightPrice(ExtPrefixUniq+" [5/8]", time, Ext6Buffer[last_index], clrGreen);
|
| ShowRightPrice(ExtPrefixUniq+" [4/8]", time, Ext7Buffer[last_index], clrDarkGray);
|
| ShowRightPrice(ExtPrefixUniq+" [3/8]", time, Ext8Buffer[last_index], clrGreen);
|
| ShowRightPrice(ExtPrefixUniq+" [2/8]", time, Ext9Buffer[last_index], clrRed);
|
| ShowRightPrice(ExtPrefixUniq+" [1/8]", time, Ext10Buffer[last_index], clrFireBrick);
|
| ShowRightPrice(ExtPrefixUniq+" [0/8]", time, Ext11Buffer[last_index], clrMediumSlateBlue);
|
|
|
| if(InpShowLabel)
|
| {
|
| ShowRightPrice(ExtPrefixUniq+" [+2/8]", time, Ext1Buffer[last_index], clrDarkBlue);
|
| ShowRightPrice(ExtPrefixUniq+" [+1/8]", time, Ext2Buffer[last_index], clrDarkViolet);
|
| ShowRightPrice(ExtPrefixUniq+" [-1/8]", time, Ext12Buffer[last_index], clrDarkViolet);
|
| ShowRightPrice(ExtPrefixUniq+" [-2/8]", time, Ext13Buffer[last_index], clrDarkBlue);
|
| }
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Create or Update "Right Price Label" object |
|
| //+------------------------------------------------------------------+
|
| bool ShowRightPrice(const string name, datetime time, double price, color clr)
|
| {
|
| if(!ObjectCreate(0, name, OBJ_ARROW_RIGHT_PRICE, 0, time, price))
|
| {
|
| ObjectMove(0, name, 0, time, price);
|
| return(false);
|
| }
|
|
|
| //--- make the label size adaptive
|
| long scale=2;
|
| if(!ChartGetInteger(0, CHART_SCALE, 0, scale))
|
| {
|
| //--- output an error message to the Experts journal
|
| Print(__FUNCTION__+", ChartGetInteger(CHART_SCALE) failed, error = ", GetLastError());
|
| }
|
| int width=scale>1 ? 2:1; // if chart scale > 1, then label size = 2
|
|
|
| ObjectSetInteger(0, name, OBJPROP_COLOR, clr);
|
| ObjectSetInteger(0, name, OBJPROP_STYLE, STYLE_SOLID);
|
| ObjectSetInteger(0, name, OBJPROP_WIDTH, width);
|
| ObjectSetInteger(0, name, OBJPROP_BACK, false);
|
| ObjectSetInteger(0, name, OBJPROP_SELECTABLE, false);
|
| ObjectSetInteger(0, name, OBJPROP_SELECTED, false);
|
| ObjectSetInteger(0, name, OBJPROP_HIDDEN, true);
|
| ObjectSetInteger(0, name, OBJPROP_ZORDER, 0);
|
|
|
| return(true);
|
| }
|
| //+------------------------------------------------------------------+
|
