Didi_Index_CR

ÿþ//+------------------------------------------------------------------+

//|                                                Didi_Index_CR.mq4 |

//|                    Copyright 2021, Manuel Alejandro Cercós Pérez |

//|                         https://www.mql5.com/en/users/alexcercos |

//+------------------------------------------------------------------+

#property copyright "Copyright 2021, Manuel Alejandro Cercós Pérez"

#property link      "https://www.mql5.com/en/users/alexcercos"

#property version   "1.00"

#property strict

#property indicator_separate_window

#property indicator_buffers 1

//--- plot Slow Line

#property indicator_label1  "Didi Index"

#property indicator_type1   DRAW_LINE

#property indicator_color1  clrCadetBlue

#property indicator_style1  STYLE_SOLID

#property indicator_width1  1



#property indicator_level1  1



//--- input parameters

input ENUM_MA_METHOD     Method       = MODE_SMA;       // Smoothing Method

input ENUM_APPLIED_PRICE AppliedPrice = PRICE_CLOSE;    // Price Values

input int                MeanPeriod   =8;               // Mean MA Period

input int                SlowPeriod   =20;              // Slow MA Period



//--- indicator buffers

double FinalBuffer[];



//--- indicator handlers



int max_period;

//+------------------------------------------------------------------+

//| Custom indicator initialization function                         |

//+------------------------------------------------------------------+

int OnInit()

{

//--- indicator buffers mapping

   SetIndexBuffer(0,FinalBuffer,INDICATOR_DATA);

   

   IndicatorSetInteger(INDICATOR_DIGITS, Digits+1);



   max_period=MathMax(MeanPeriod,SlowPeriod);



   IndicatorSetString(INDICATOR_SHORTNAME,"DidiIndex("+IntegerToString(MeanPeriod)+", "+IntegerToString(SlowPeriod)+")");

//---

   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[],

                const double &close[],

                const long &tick_volume[],

                const long &volume[],

                const int &spread[])

{

   int limit = MathMin(rates_total-prev_calculated, rates_total-max_period);



   for(int i=limit; i>=0; i--)

   {

      FinalBuffer[i] = 2.0-iMA(Symbol(), PERIOD_CURRENT, SlowPeriod, 0, Method, AppliedPrice, i)/

                           iMA(Symbol(), PERIOD_CURRENT, MeanPeriod, 0, Method, AppliedPrice, i);

   }

   

   return(rates_total);

}