请求高人帮忙看看。CCI-ZigZag indicator---建立在CCI数据基础上的ZigZag 技术指标。

zeeda 2017.06.14 15:27

我是MT4的初学者，而且以前没有学过电脑，更不要说编程了。所有关于电脑的知识都是自己摸索出来的，所有，很多地方概念很模糊。在此也恳请大家帮助！先谢谢大家！

我想写一个建立在CCI数据基础上的ZigZag 技术指标。我的思路是：把MT4平台自带的那个ZigZag indicator进行改动，用CCI的数据代替原有的价格数据从而得到一个自己的技术指标。具体做法是：设立一个ExtCCIBuffer[] 并用iCCI给它付值；然后用ExtCCIBuffer的数据源所替代原ZigZag的价格数据。

可是报错：“’ExtCCIBuffer’ invalid array access”. 可是我自己不知道错在哪里？如何改？。

我把这个indicator发给大家帮我看看。如果这个方法不行的话，能否请人帮我写一个这个indicator? 在这个技术指标中，我需要提取最新的7个拐点的CCI数据，并要知道这7个拐点Bar的序号。

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

//| ZD-CCI-ZigZag.mq4 |

//| |

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

#property copyright ""

#property strict

#property indicator_separate_window

#property indicator_minimum 0

#property indicator_maximum 100

#property indicator_buffers 2

#property indicator_plots 2

//--- plot CCI

#property indicator_label1 "CCI"

#property indicator_type1 DRAW_LINE

#property indicator_color1 clrDarkTurquoise

#property indicator_style1 STYLE_SOLID

#property indicator_width1 1

//--- plot Zigzag

#property indicator_label2 "ExtZigZag"

#property indicator_type2 DRAW_LINE

#property indicator_color2 clrRed

#property indicator_style2 STYLE_SOLID

#property indicator_width2 1

#property indicator_level1 35.0

#property indicator_level2 65.0

#property indicator_level3 50.0

#property indicator_levelcolor clrSilver

#property indicator_levelstyle STYLE_DOT

//--- indicator buffers

double ExtCCIBuffer[];

double ExtZigzagBuffer[];

double ExtHighBuffer[];

double ExtLowBuffer[];

//--- Cci input parameters

extern int CCI_Period = 14;

extern int CCI_PRICE = PRICE_CLOSE;

//---- ZigZag indicator parameters

input int InpDepth=6; // Depth

input int InpDeviation=5; // Deviation

input int InpBackstep=2; // Backstep

//---- indicator buffers

//--- globals

int ExtLevel=3; // recounting's depth of extremums

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

//| Custom indicator initialization function |

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

int OnInit()

{

if(InpBackstep>=InpDepth)

{

Print("Backstep cannot be greater or equal to Depth");

return(INIT_FAILED);

}

//--- 2 additional buffers

IndicatorBuffers(4);

//---- indicator buffers

SetIndexBuffer(0,ExtCCIBuffer);

SetIndexBuffer(1,ExtZigzagBuffer);

SetIndexBuffer(2,ExtHighBuffer);

SetIndexBuffer(3,ExtLowBuffer);

SetIndexEmptyValue(0,0.0);

//---- drawing settings

SetIndexStyle(0,DRAW_SECTION);

SetIndexStyle(1,DRAW_SECTION);

//---set close[]

ArraySetAsSeries(Close,true);

//---Vital Information

//---- indicator short name

IndicatorShortName("CCIZigZag("+string(InpDepth)+","+string(InpDeviation)+","+string(InpBackstep)+")");

//---- initialization done

return(INIT_SUCCEEDED);

}

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

//| |

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

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,limit,counterZ,Ccilimit,whatlookfor=0;

int back,pos,lasthighpos=0,lastlowpos=0;

double extremum;

double curlow=0.0,curhigh=0.0,lasthigh=0.0,lastlow=0.0;

//---set CCI buffers

Ccilimit=rates_total-prev_calculated;

if (Ccilimit>1)

{

for(i=0; i<rates_total; i++)

{

ExtCCIBuffer[i]=iCCI(NULL,0,CCI_Period,PRICE_CLOSE,i);

}

else

{

for(i=0; i<Ccilimit+1; i++)

{

ExtCCIBuffer[i]=iCCI(NULL,0,CCI_Period,PRICE_CLOSE,i);

}

//--- check for history and inputs

if(rates_total<InpDepth || InpBackstep>=InpDepth)

return(0);

//--- first calculations

if(prev_calculated==0)

limit=InitializeAll();

else

{

//--- find first extremum in the depth ExtLevel or 100 last bars

i=counterZ=0;

while(counterZ<ExtLevel && i<100)

{

if(ExtZigzagBuffer[i]!=0.0)

counterZ++;

i++;

}

//--- no extremum found - recounting all from begin

if(counterZ==0)

limit=InitializeAll();

else

{

//--- set start position to found extremum position

limit=i-1;

//--- what kind of extremum?

if(ExtLowBuffer[i]!=0.0)

{

//--- low extremum

curlow=ExtLowBuffer[i];

//--- will look for the next high extremum

whatlookfor=1;

}

else

{

//--- high extremum

curhigh=ExtHighBuffer[i];

//--- will look for the next low extremum

whatlookfor=-1;

}

//--- clear the rest data

for(i=limit-1; i>=0; i--)

{

ExtZigzagBuffer[i]=0.0;

ExtLowBuffer[i]=0.0;

ExtHighBuffer[i]=0.0;

}

//--- main loop

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

{

//--- find lowest low in depth of bars

extremum=Close[iLowest(ExtCCIBuffer,0,MODE_CLOSE,InpDepth,i)];

//--- this lowest has been found previously

if(extremum==lastlow)

extremum=0.0;

else

{

//--- new last low

lastlow=extremum;

//--- discard extremum if current low is too high

if(close[i]-extremum>InpDeviation*Point)

extremum=0.0;

else

{

//--- clear previous extremums in backstep bars

for(back=1; back<=InpBackstep; back++)

{

pos=i+back;

if(ExtLowBuffer[pos]!=0 && ExtLowBuffer[pos]>extremum)

ExtLowBuffer[pos]=0.0;

}

//--- found extremum is current low

if(close[i]==extremum)

ExtLowBuffer[i]=extremum;

else

ExtLowBuffer[i]=0.0;

//--- find highest high in depth of bars in ExtCCIBuffer

extremum=Close[iHighest(ExtCCIBuffer,0,MODE_CLOSE,InpDepth,i)];

//--- this highest has been found previously

if(extremum==lasthigh)

extremum=0.0;

else

{

//--- new last high

lasthigh=extremum;

//--- discard extremum if current high is too low

if(extremum-Close[i]>InpDeviation*Point)

extremum=0.0;

else

{

//--- clear previous extremums in backstep bars

for(back=1; back<=InpBackstep; back++)

{

pos=i+back;

if(ExtHighBuffer[pos]!=0 && ExtHighBuffer[pos]<extremum)

ExtHighBuffer[pos]=0.0;

}

//--- found extremum is current high

if(Close[i]==extremum)

ExtHighBuffer[i]=extremum;

else

ExtHighBuffer[i]=0.0;

}

//--- final cutting

if(whatlookfor==0)

{

lastlow=0.0;

lasthigh=0.0;

}

else

{

lastlow=curlow;

lasthigh=curhigh;

}

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

{

switch(whatlookfor)

{

case 0: // look for peak or lawn

if(lastlow==0.0 && lasthigh==0.0)

{

if(ExtHighBuffer[i]!=0.0)

{

lasthigh=Close[i];

lasthighpos=i;

whatlookfor=-1;

ExtZigzagBuffer[i]=lasthigh;

}

if(ExtLowBuffer[i]!=0.0)

{

lastlow=Close[i];

lastlowpos=i;

whatlookfor=1;

ExtZigzagBuffer[i]=lastlow;

}

break;

case 1: // look for peak

if(ExtLowBuffer[i]!=0.0 && ExtLowBuffer[i]<lastlow && ExtHighBuffer[i]==0.0)

{

ExtZigzagBuffer[lastlowpos]=0.0;

lastlowpos=i;

lastlow=ExtLowBuffer[i];

ExtZigzagBuffer[i]=lastlow;

}

if(ExtHighBuffer[i]!=0.0 && ExtLowBuffer[i]==0.0)

{

lasthigh=ExtHighBuffer[i];

lasthighpos=i;

ExtZigzagBuffer[i]=lasthigh;

whatlookfor=-1;

}

break;

case -1: // look for lawn

if(ExtHighBuffer[i]!=0.0 && ExtHighBuffer[i]>lasthigh && ExtLowBuffer[i]==0.0)

{

ExtZigzagBuffer[lasthighpos]=0.0;

lasthighpos=i;

lasthigh=ExtHighBuffer[i];

ExtZigzagBuffer[i]=lasthigh;

}

if(ExtLowBuffer[i]!=0.0 && ExtHighBuffer[i]==0.0)

{

lastlow=ExtLowBuffer[i];

lastlowpos=i;

ExtZigzagBuffer[i]=lastlow;

whatlookfor=1;

}

break;

}

//--- done

return(rates_total);

}

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

//| |

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

int InitializeAll()

{

ArrayInitialize(ExtZigzagBuffer,0.0);

ArrayInitialize(ExtHighBuffer,0.0);

ArrayInitialize(ExtLowBuffer,0.0);

//--- first counting position

return(Bars-InpDepth);

}

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

附加的文件：

ZD-CCI-ZigZag.mq4 10 kb

Xiangdong Guo 2017.06.15 00:02 #1

你这段代码错误太多，而且 ZigZag 是著名的未来指标，参考意义不大，可能感兴趣的人不多。

去 “自由职业者” 板块发个任务试试吧。

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