紧急求助!EA中如何调用该指标?
我有两年的外汇交易经验,今年以来运用一套超短线策略帐户资金开始出现增长。对于编程我有一些经验,对于EA我还是新手。
我想将我的策略用EA来实现。等EA基本做出来的时候与大家分享和改进。
现在的问题是:EA中用到指标slope direction line实现基本的趋势判断,但我不知到如何正确调用。
double iCustom( string symbol, int timeframe, string name, ... , int mode, int shift)
其中int mode是什么?具体对于slope direction line而言,mode应该是什么?下面语句中问号应该是什么?
if(iCustom(NULL,PERIOD_M30,\"Slope Direction Line\",10,2,4,?,0)==?) {.....//趋势向上}
slope direction line代码如下
//+------------------------------------------------------------------+
#property copyright \"MT4 release WizardSerg <a href=\"mailto:wizardserg@mail.ru\"wizardserg@mail.ru/a>, ?? ??????? ForeXMagazine #104\"
#property link \"wizardserg@mail.ru\"
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Blue
#property indicator_color2 Red
//---- input parameters
extern int period=10;
extern int method=2; // MODE_SMA
extern int price=4; // PRICE_CLOSE
//---- buffers
double Uptrend[];
double Dntrend[];
double ExtMapBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
IndicatorBuffers(3);
SetIndexBuffer(0, Uptrend);
//ArraySetAsSeries(Uptrend, true);
SetIndexBuffer(1, Dntrend);
//ArraySetAsSeries(Dntrend, true);
SetIndexBuffer(2, ExtMapBuffer);
ArraySetAsSeries(ExtMapBuffer, true);
SetIndexStyle(0,DRAW_LINE,STYLE_SOLID,2);
SetIndexStyle(1,DRAW_LINE,STYLE_SOLID,2);
IndicatorShortName(\"Slope Direction Line(\"+period+\")\");
return(0);
}
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
// ???? ????? ?????? ??????
return(0);
}
//+------------------------------------------------------------------+
//| ?????????? ??????? |
//+------------------------------------------------------------------+
double WMA(int x, int p)
{
return(iMA(NULL, 0, p, 0, method, price, x));
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
int counted_bars = IndicatorCounted();
if(counted_bars < 0)
return(-1);
int x = 0;
int p = MathSqrt(period);
int e = Bars - counted_bars + period + 1;
double vect[], trend[];
if(e > Bars)
e = Bars;
ArrayResize(vect, e);
ArraySetAsSeries(vect, true);
ArrayResize(trend, e);
ArraySetAsSeries(trend, true);
for(x = 0; x < e; x++)
{
vect[x] = 2*WMA(x, period/2) - WMA(x, period);
// Print(\"Bar date/time: \", TimeToStr(Time[x]), \" close: \", Close[x], \" vect[\", x, \"] = \", vect[x], \" 2*WMA(p/2) = \", 2*WMA(x, period/2), \" WMA(p) = \", WMA(x, period));
}
for(x = 0; x < e-period; x++)
ExtMapBuffer[x] = iMAOnArray(vect, 0, p, 0, method, x);
for(x = e-period; x >= 0; x--)
{
trend[x] = trend[x+1];
if (ExtMapBuffer[x]> ExtMapBuffer[x+1]) trend[x] =1;
if (ExtMapBuffer[x]< ExtMapBuffer[x+1]) trend[x] =-1;
if (trend[x]>0)
{ Uptrend[x] = ExtMapBuffer[x];
if (trend[x+1] |