改编MT5中rates_total等怎么处理 - 公式模型编写问题提交 - 金字塔客服中心 - 专业程序化交易软件提供商

请问MT5当中的rates_total, prev_calculated,copied

改过来应该怎么处理？O(∩_∩)O谢谢

完整代码如下

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

//| TrendStrength_v2.mq5 |

//| Copyright ?2013, TrendLaboratory |

//| http://finance.groups.yahoo.com/group/TrendLaboratory |

//| E-mail: igorad2003@yahoo.co.uk |

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

#property copyright "Copyright ?2013, TrendLaboratory"

#property link "http://finance.groups.yahoo.com/group/TrendLaboratory"

//--- indicator settings

#property indicator_separate_window

#property indicator_buffers 5

#property indicator_plots 3

#property indicator_label1 "Smoothed RSI"

#property indicator_type1 DRAW_LINE

#property indicator_color1 DarkGray

#property indicator_style1 STYLE_SOLID

#property indicator_width1 1

#property indicator_label2 "UpTrend"

#property indicator_type2 DRAW_LINE

#property indicator_color2 DeepSkyBlue

#property indicator_style2 STYLE_SOLID

#property indicator_width2 2

#property indicator_label3 "DnTrend"

#property indicator_type3 DRAW_LINE

#property indicator_color3 OrangeRed

#property indicator_style3 STYLE_SOLID

#property indicator_width3 2

//---- indicator parameters

input ENUM_APPLIED_PRICE Price = PRICE_CLOSE; // Applied Price

input int RSILength = 14; // RSI Period

input int Smooth = 5; // Smoothing Period

input double K = 4.236; // Multiplier

//---- indicator buffers

double smRSI[];

double upTrend[];

double dnTrend[];

double rsi[];

double trend[];

double delta1[2],delta2[2],upband[2],loband[2],alpha;

int rsi_handle;

datetime prevTime;

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

//| Custom indicator initialization function |

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

void OnInit()

{

//--- indicator buffers mapping

SetIndexBuffer(0,smRSI,INDICATOR_DATA);

SetIndexBuffer(1,upTrend,INDICATOR_DATA);

SetIndexBuffer(2,dnTrend,INDICATOR_DATA);

SetIndexBuffer(3,rsi,INDICATOR_CALCULATIONS);

SetIndexBuffer(4,trend,INDICATOR_CALCULATIONS);

//---

IndicatorSetInteger(INDICATOR_DIGITS,_Digits+1);

//---

string short_name="TrendStrength_v2("+priceToString(Price)+","+(string)RSILength+","+(string)Smooth+","+DoubleToString(K,3)+")";

IndicatorSetString(INDICATOR_SHORTNAME,short_name);

//--- sets first bar from what index will be drawn

int begin=(int)MathMax(2,RSILength+Smooth);

PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,begin);

PlotIndexSetInteger(1,PLOT_DRAW_BEGIN,begin);

PlotIndexSetInteger(2,PLOT_DRAW_BEGIN,begin);

//---

rsi_handle=iRSI(NULL,0,RSILength,Price);

alpha=1.0/RSILength;

//--- initialization done

}

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

//| TrendStrength_v2 |

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

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 &TickVolume[],

const long &Volume[],

const int &Spread[])

{

int shift,limit,copied=0;

double hiRSI,loRSI,rangeRSI;

//--- preliminary calculations

if(prev_calculated==0)

{

limit=RSILength+Smooth;

ArrayInitialize(smRSI,0);

ArrayInitialize(upTrend,0);

ArrayInitialize(dnTrend,0);

}

else limit=prev_calculated-1;

copied=CopyBuffer(rsi_handle,0,0,rates_total-1,rsi);

if(copied<0)

{

Print("not all RSI copied. Will try on next tick Error =",GetLastError(),", copied =",copied);

return(0);

}

//--- the main loop of calculations

for(shift=limit;shift<rates_total;shift++)

{

if(prevTime<Time[shift])

{

delta1[1] = delta1[0];

delta2[1] = delta2[0];

upband[1] = upband[0];

loband[1] = loband[0];

prevTime=Time[shift];

}

smRSI[shift]=smRSI[shift-1]+2./(Smooth+1)*(rsi[shift]-smRSI[shift-1]);

if(smRSI[shift]>smRSI[shift-1]) {hiRSI=smRSI[shift]; loRSI=smRSI[shift-1];}

else

if(smRSI[shift]<smRSI[shift-1]) {hiRSI=smRSI[shift-1]; loRSI=smRSI[shift];}

else

{hiRSI=smRSI[shift]; loRSI=smRSI[shift];}

rangeRSI=hiRSI-loRSI;

delta1[0] = delta1[1] + alpha*(rangeRSI - delta1[1]);

delta2[0] = delta2[1] + alpha*(delta1[0] - delta2[1]);

upband[0] = smRSI[shift] + K*delta2[0];

loband[0] = smRSI[shift] - K*delta2[0];

trend[shift]=trend[shift-1];

if(smRSI[shift] > upband[1]) trend[shift] = 1;

if(smRSI[shift] < loband[1]) trend[shift] =-1;

upTrend[shift] = EMPTY_VALUE;

dnTrend[shift] = EMPTY_VALUE;

if(trend[shift]>0)

{

if(loband[0]<loband[1]) loband[0]=loband[1];

upTrend[shift]=loband[0];

}

else

if(trend[shift]<0)

{

if(upband[0]>upband[1]) upband[0]=upband[1];

dnTrend[shift]=upband[0];

}

//--- done

return(rates_total);

}

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

string priceToString(ENUM_APPLIED_PRICE app_price)

{

switch(app_price)

{

case PRICE_CLOSE : return("Close");

case PRICE_HIGH : return("High");

case PRICE_LOW : return("Low");

case PRICE_MEDIAN : return("Median");

case PRICE_OPEN : return("Open");

case PRICE_TYPICAL : return("Typical");

case PRICE_WEIGHTED: return("Weighted");

default : return("");

}

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

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