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MT4智能交易编程示例 Bulls指标
- #property copyright "路路发智能交易研发中心"
- #property link "http://www.ea668.com"
- #property description "Bulls Power"
- #property strict
- //--- indicator settings
- #property indicator_separate_window
- #property indicator_buffers 1
- #property indicator_color1 Silver
- //--- input parameter
- input int InpBullsPeriod=13;
- //--- buffers
- double ExtBullsBuffer[];
- double ExtTempBuffer[];
- //+------------------------------------------------------------------+
- //| Custom indicator initialization function |
- //+------------------------------------------------------------------+
- void OnInit(void)
- {
- string short_name;
- //--- 1 additional buffer used for counting.
- IndicatorBuffers(2);
- IndicatorDigits(Digits);
- //--- indicator line
- SetIndexStyle(0,DRAW_HISTOGRAM);
- SetIndexBuffer(0,ExtBullsBuffer);
- SetIndexBuffer(1,ExtTempBuffer);
- //--- name for DataWindow and indicator subwindow label
- short_name="Bulls("+IntegerToString(InpBullsPeriod)+")";
- IndicatorShortName(short_name);
- SetIndexLabel(0,short_name);
- }
- //+------------------------------------------------------------------+
- //| Bulls Power |
- //+------------------------------------------------------------------+
- 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=rates_total-prev_calculated;
- //---
- if(rates_total<=InpBullsPeriod)
- return(0);
- //---
- if(prev_calculated>0)
- limit++;
- for(int i=0; i<limit; i++)
- {
- ExtTempBuffer[i]=iMA(NULL,0,InpBullsPeriod,0,MODE_EMA,PRICE_CLOSE,i);
- ExtBullsBuffer[i]=high[i]-ExtTempBuffer[i];
- }
- //---
- return(rates_total);
- }
- //+------------------------------------------------------------------+
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