StepMVA

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

//|                                                      StepMVA.mq5 |

//|                        Copyright 2018, MetaQuotes Software Corp. |

//|                                                 https://mql5.com |

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

#property copyright "Copyright 2018, MetaQuotes Software Corp."

#property link      "https://mql5.com"

#property version   "1.00"

#property description "Moving Average with step"

#property indicator_chart_window

#property indicator_buffers 1

#property indicator_plots   1

//--- plot StepMA

#property indicator_label1  "StepMA"

#property indicator_type1   DRAW_LINE

#property indicator_color1  clrCadetBlue

#property indicator_style1  STYLE_SOLID

#property indicator_width1  2

//--- input parameters

input uint     InpPeriodMA =  10;   // Period

input uint     InpStepMA   =  5;    // Step

//--- indicator buffers

double         BufferStepMA[];

//--- global variables

int            step;

int            period_ma;

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

//| Custom indicator initialization function                         |

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

int OnInit()

  {

//--- set global variables

   period_ma=int(InpPeriodMA<1 ? 1 : InpPeriodMA);

   step=int(InpStepMA<1 ? 1 : InpStepMA);

//--- indicator buffers mapping

   SetIndexBuffer(0,BufferStepMA,INDICATOR_DATA);

//--- setting indicator parameters

   IndicatorSetString(INDICATOR_SHORTNAME,"StepMA ("+(string)period_ma+","+(string)step+")");

   IndicatorSetInteger(INDICATOR_DIGITS,Digits());

//--- setting buffer arrays as timeseries

   ArraySetAsSeries(BufferStepMA,true);

//---

   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[])

  {

//--- #AB0=>2:0 <0AA82>2 1CD5@>2 :0: B09<A5@89

   ArraySetAsSeries(close,true);

//--- @>25@:0 :>;8G5AB20 4>ABC?=KE 10@>2

   if(rates_total<fmax(period_ma*step,4)) return 0;

//--- @>25@:0 8 @0AGQB :>;8G5AB20 ?@>AG8BK205<KE 10@>2

   int limit=rates_total-prev_calculated;

   if(limit>1)

     {

      limit=rates_total-1-period_ma*step;

      ArrayInitialize(BufferStepMA,EMPTY_VALUE);

     }

//---  0AGQB 8=48:0B>@0

   for(int i=limit; i>=0 && !IsStopped(); i--)

     {

      double sum=0;

      for(int j=0; j<period_ma; j++)

        {

         sum+=close[i+j*step];

        }

      BufferStepMA[i]=sum/period_ma;

     }



//--- return value of prev_calculated for next call

   return(rates_total);

  }

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