关于iBands 函数中的 applied_price 参数里调用 Previous Indicator's Data 价格类型的问题？希望在这儿得到答案。
You must make double array with values of indicator from you want to get iBands() and then apply to this array function iBandOnArray(). For example see RSI_BANDS_MA:
//+------------------------------------------------------------------+ //| alx_RSI_BANDS_MA.mq4 | //| alx_Babon | //+------------------------------------------------------------------+ #property copyright "alx_Babon" #property link "babon82@gmail.com" #property indicator_separate_window #property indicator_buffers 6 #property indicator_color1 Yellow #property indicator_color2 DarkBlue #property indicator_color3 White #property indicator_color4 White #property indicator_color5 White //---- input parameters extern int RSI_Per=8; extern int MA_Per=8; extern int Bands_Per=20; extern int SmoothType=0; //---- buffers double ExtMapBuffer1[]; double ExtMapBuffer2[]; double ExtMapBuffer3[]; double ExtMapBuffer4[]; double ExtMapBuffer5[]; double ExtMapBuffer6[]; double Sostoyanie; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int init() { //---- indicators string type; switch(SmoothType) { case MODE_EMA: type="EMA";break; case MODE_SMMA: type="SMMA";break; case MODE_LWMA: type="LWMA";break; default: type="LWMA";SmoothType=0;break; // если ни один вариант не подошел } SetIndexStyle(0,DRAW_LINE,0,1); SetIndexBuffer(0,ExtMapBuffer1);//Свойства RSI SetIndexLabel(0,"RSI("+RSI_Per+")"); SetIndexStyle(1,DRAW_LINE,0,2); SetIndexBuffer(1,ExtMapBuffer2);//Свойства MA SetIndexLabel(1,"MA ("+MA_Per+"), "+type); SetIndexStyle(2,DRAW_LINE,2,1); SetIndexBuffer(2,ExtMapBuffer3);//Свойства Bands SetIndexLabel(2,"Bands ("+Bands_Per+")"); SetIndexStyle(3,DRAW_LINE,2,1); SetIndexBuffer(3,ExtMapBuffer4);//Свойства Bands SetIndexLabel(3,"Bands ("+Bands_Per+")"); SetIndexStyle(4,DRAW_LINE,2,1); SetIndexBuffer(4,ExtMapBuffer5);//Свойства Bands SetIndexLabel(4,"Bands ("+Bands_Per+")"); //---- return(0); } //+------------------------------------------------------------------+ //| Custom indicator deinitialization function | //+------------------------------------------------------------------+ int deinit() { //---- //---- return(0); } //+------------------------------------------------------------------+ //| Custom indicator iteration function | //+------------------------------------------------------------------+ int start() { int counted_bars=IndicatorCounted(); int limit,cnt; int cnt_rsi,cnt_bb,cnt_ma; if (counted_bars==0) { limit=Bars-RSI_Per-1; for(cnt=limit;cnt>=0;cnt--) { ExtMapBuffer1[cnt]=iRSI(NULL,0,RSI_Per,PRICE_CLOSE,cnt); } for(cnt=1;cnt<=Bars;cnt++) { ExtMapBuffer6[cnt]= iMA(NULL,0,MA_Per,0,SmoothType,PRICE_CLOSE,cnt); } for(cnt=limit-MA_Per;cnt>=0;cnt--) { ExtMapBuffer2[cnt]=iMAOnArray(ExtMapBuffer1,0,MA_Per,0,SmoothType,cnt); } for(cnt=limit-Bands_Per;cnt>=0;cnt--) { ExtMapBuffer3[cnt]=iBandsOnArray(ExtMapBuffer1,0,Bands_Per,2,0,MODE_LOWER,cnt); } for(cnt=limit-Bands_Per;cnt>=0;cnt--) { ExtMapBuffer4[cnt]=iBandsOnArray(ExtMapBuffer1,0,Bands_Per,2,0,MODE_UPPER,cnt); } for(cnt=limit-Bands_Per;cnt>=0;cnt--) { ExtMapBuffer5[cnt]=iBandsOnArray(ExtMapBuffer1,0,Bands_Per,2,0,MODE_MAIN,cnt); } } cnt_rsi=limit; cnt_bb=limit-Bands_Per; cnt_ma=limit-MA_Per; Comment( "RSI (",RSI_Per,")=",ExtMapBuffer1[1],"\n", "Bolinger (",Bands_Per,")=",ExtMapBuffer5[1],"\n", "MA (",MA_Per,")=",ExtMapBuffer2[1],"\n" //,"MA CNT (",MA_Per,")=",ExtMapBuffer6[8],"\n" //,"CNT_MA (",cnt_ma,")" ); //---- //ObjectCreate("Arrow", OBJ_ARROW, 0, 0, 5); //ObjectSet("Arrow",OBJPROP_ARROWCODE,OBJ_PERIOD_M15 | OBJ_PERIOD_H1); //ObjectSetText("PivotText", "Pivot Point (DJ)", fontsize, "Arial", //colorPivot); //---- return(0); } //+------------------------------------------------------------------+
我的问题是：在指标编写过程中需要使用iBands 函数中的 applied_price 参数里调用 Previous Indicator's Data 价格类型，但是applied_price 参数里没有对应的
Previous Indicator's Data 价格类型，我该怎么调用，或者模拟有Previous Indicator's Data 价格类型的布林线，希望大家可以帮助我。
iBands(NULL,0,20,2,0,？,MODE_LOWER,0)