【FXブログ】よく当たるFX為替レート予想

【動画】MQLによる移動平均線インジケーターの自作プログラミング

ＭＴ４で移動平均線インジケーターを自作する

移動平均線の計算説明

if文を使う部分の説明

for文を使う部分の説明

移動平均線インジケーターのソースコード

//+------------------------------------------------------------------+
//|                                                           ma.mq4 |
//|                        Copyright 2020, MetaQuotes Software Corp. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2020, MetaQuotes Software Corp."
#property link      "https://www.mql5.com"
#property version   "1.00"
#property strict
#property indicator_chart_window
#property indicator_buffers 1
#property indicator_plots   1
//--- plot Label1
#property indicator_label1  "Label1"
#property indicator_type1   DRAW_LINE
#property indicator_color1  clrYellow
#property indicator_style1  STYLE_SOLID
#property indicator_width1  3
//--- indicator buffers
double         Label1Buffer[];
extern int MA_Period=5;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
  {
//--- indicator buffers mapping
   SetIndexBuffer(0,Label1Buffer);
   
//---
   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 i;
   int j;
   int limit;
   if(prev_calculated==0){
      limit=rates_total-1;
   }
   else
   {
      limit=rates_total-prev_calculated;
   }
   for(i=limit; i>=0; i--)
   {
      if(i+MA_Period-1      {
         Label1Buffer[i]=0;
         for(j=0; j      {
         Label1Buffer[i]=Label1Buffer[i]+Close[i+j];
      }
         Label1Buffer[i]=Label1Buffer[i]/MA_Period;
      }
   }
//--- return value of prev_calculated for next call
   return(rates_total);
  }
//+------------------------------------------------------------------+