//| ATR Channels.mq4 |
//| Copyright ?2005, Luis Guilherme Damiani |
//| http://www.damianifx.com.br |
//+------------------------------------------------------------------+
#property copyright "Copyright ?2005, Luis Guilherme Damiani"
#property link "http://www.damianifx.com.br"
#property indicator_chart_window
#property indicator_buffers 7
#property indicator_color1 Green //Moving Average
#property indicator_color2 DeepSkyBlue // Lower band 1
#property indicator_color3 DeepSkyBlue // Upper band 1
#property indicator_color4 Blue // Lower band 2
#property indicator_color5 Blue // Upper band 2
#property indicator_color6 Red // Lower band 3
#property indicator_color7 Red // Upper band 3
//---- indicator buffers
double MA_Buffer0[];
double Ch1up_Buffer1[];
double Ch1dn_Buffer2[];
double Ch2up_Buffer3[];
double Ch2dn_Buffer4[];
double Ch3up_Buffer5[];
double Ch3dn_Buffer6[];
//---- input parameters
extern int PeriodsATR = 18;
extern int MA_Periods = 49;
extern int MA_type = MODE_LWMA;
extern double Mult_Factor1 = 1.6;
extern double Mult_Factor2 = 3.2;
extern double Mult_Factor3 = 4.8;
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
string mat;
//---7- indicators
// MA
SetIndexStyle(0, DRAW_LINE);
SetIndexBuffer(0, MA_Buffer0);
SetIndexDrawBegin(0, MathMax(PeriodsATR, MA_Periods));
// ATR 1 up
SetIndexStyle(1, DRAW_LINE);
SetIndexBuffer(1, Ch1up_Buffer1);
SetIndexDrawBegin(1, MathMax(PeriodsATR, MA_Periods));
string sATRu1 = StringConcatenate("ATRu(", PeriodsATR, ", ", Mult_Factor1, ")");
SetIndexLabel(1, sATRu1);
// ATR 1 down
SetIndexStyle(2, DRAW_LINE);
SetIndexBuffer(2, Ch1dn_Buffer2);
SetIndexDrawBegin(2, MathMax(PeriodsATR, MA_Periods));
string sATRd1 = StringConcatenate("ATRd(", PeriodsATR, ", ", Mult_Factor1, ")");
SetIndexLabel(2, sATRd1);
// ATR 2 up
SetIndexStyle(3, DRAW_LINE);
SetIndexBuffer(3, Ch2up_Buffer3);
SetIndexDrawBegin(3, MathMax(PeriodsATR, MA_Periods));
string sATRu2 = StringConcatenate("ATRu(", PeriodsATR, ", ", Mult_Factor2, ")");
SetIndexLabel(3, sATRu2);
// ATR 2 down
SetIndexStyle(4, DRAW_LINE);
SetIndexBuffer(4, Ch2dn_Buffer4);
SetIndexDrawBegin(4, MathMax(PeriodsATR, MA_Periods));
string sATRd2 = StringConcatenate("ATRd(", PeriodsATR, ", ", Mult_Factor2, ")");
SetIndexLabel(4, sATRd2);
// ATR 3 up
SetIndexStyle(5, DRAW_LINE);
SetIndexBuffer(5, Ch3up_Buffer5);
SetIndexDrawBegin(5, MathMax(PeriodsATR, MA_Periods));
string sATRu3 = StringConcatenate("ATRu(", PeriodsATR, ", ", Mult_Factor3, ")");
SetIndexLabel(5, sATRu3);
// ATR 3 down
SetIndexStyle(6, DRAW_LINE);
SetIndexBuffer(6, Ch3dn_Buffer6);
SetIndexDrawBegin(6, MathMax(PeriodsATR, MA_Periods));
string sATRd3 = StringConcatenate("ATRd(", PeriodsATR, ", ", Mult_Factor3, ")");
SetIndexLabel(6, sATRd3);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
if(Bars <= MathMax(PeriodsATR, MA_Periods))
return(0);
int fixed_bars = IndicatorCounted();
//---- check for possible errors
if(fixed_bars < 0)
return(-1);
//---- last counted bar will be recounted
if(fixed_bars > 0)
fixed_bars--;
int limit = Bars - fixed_bars;
//----
for(int i = 0; i < limit; i++)
{
double atr = iATR(NULL, 0, PeriodsATR, i);
double ma = iMA(NULL, 0, MA_Periods, 0, MA_type, PRICE_TYPICAL, i);
MA_Buffer0[i] = ma;
Ch1up_Buffer1[i] = ma + atr*Mult_Factor1;
Ch1dn_Buffer2[i] = ma - atr*Mult_Factor1;
Ch2up_Buffer3[i] = ma + atr*Mult_Factor2;
Ch2dn_Buffer4[i] = ma - atr*Mult_Factor2;
Ch3up_Buffer5[i] = ma + atr*Mult_Factor3;
Ch3dn_Buffer6[i] = ma - atr*Mult_Factor3;
}
//----
return(0);
}
//+------------------------------------------------------------------+
1楼源码与文化华的编写差异较大，无法直接改写
或者您可以具体说明一下1楼的指标思路,我们帮您直接编写为文华的指标
ATR指标改为通道线可以参考这样的编写：
N:=2;
TR := MAX(MAX((HIGH-LOW),ABS(REF(CLOSE,1)-HIGH)),ABS(REF(CLOSE,1)-LOW));
ATR := MA(TR,26),COLORYELLOW;
压力线:MA(C+N*ATR,20);
支撑线:MA(C-N*ATR,20);
