MA source code missing one variable !
Man! That code is old!
//+------------------------------------------------------------------+ //| Custom Moving Average.mq4 | //| Copyright © 2004, MetaQuotes Software Corp. | //| http://www.metaquotes.net/ | //+------------------------------------------------------------------+
Ok dude ! So !
send the new stuff you got :)
It's possible to add needed extern parameter to get price you want you to calculate in an indicator (sorry for my English). Here is sample:
//+------------------------------------------------------------------+ //| Standard Deviation.mq4 | //| Copyright © 2005, MetaQuotes Software Corp. | //| http://www.metaquotes.net/ | //+------------------------------------------------------------------+ #property copyright "Copyright © 2005, MetaQuotes Software Corp." #property link "http://www.metaquotes.net/" #property indicator_separate_window #property indicator_minimum 0 #property indicator_buffers 1 #property indicator_color1 Blue //---- input parameters extern int ExtStdDevPeriod=20; extern int ExtStdDevMAMethod=0; extern int ExtStdDevAppliedPrice=0; extern int ExtStdDevShift=0; //---- buffers double ExtStdDevBuffer[]; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int init() { string sShortName; //---- indicator buffer mapping SetIndexBuffer(0,ExtStdDevBuffer); //---- indicator line SetIndexStyle(0,DRAW_LINE); //---- line shifts when drawing SetIndexShift(0,ExtStdDevShift); //---- name for DataWindow and indicator subwindow label sShortName="StdDev("+ExtStdDevPeriod+")"; IndicatorShortName(sShortName); SetIndexLabel(0,sShortName); //---- first values aren't drawn SetIndexDrawBegin(0,ExtStdDevPeriod); //---- return(0); } //+------------------------------------------------------------------+ //| Standard Deviation | //+------------------------------------------------------------------+ int start() { int i,j,nLimit,nCountedBars; double dAPrice,dAmount,dMovingAverage; //---- insufficient data if(Bars<=ExtStdDevPeriod) return(0); //---- bars count that does not changed after last indicator launch. nCountedBars=IndicatorCounted(); //----Standard Deviation calculation i=Bars-ExtStdDevPeriod-1; if(nCountedBars>ExtStdDevPeriod) i=Bars-nCountedBars; while(i>=0) { dAmount=0.0; dMovingAverage=iMA(NULL,0,ExtStdDevPeriod,0,ExtStdDevMAMethod,ExtStdDevAppliedPrice,i); for(j=0; j<ExtStdDevPeriod; j++) { dAPrice=GetAppliedPrice(ExtStdDevAppliedPrice,i+j); dAmount+=(dAPrice-dMovingAverage)*(dAPrice-dMovingAverage); } ExtStdDevBuffer[i]=MathSqrt(dAmount/ExtStdDevPeriod); i--; } //---- return(0); } //+------------------------------------------------------------------+ //| | //+------------------------------------------------------------------+ double GetAppliedPrice(int nAppliedPrice, int nIndex) { double dPrice; //---- switch(nAppliedPrice) { case 0: dPrice=Close[nIndex]; break; case 1: dPrice=Open[nIndex]; break; case 2: dPrice=High[nIndex]; break; case 3: dPrice=Low[nIndex]; break; case 4: dPrice=(High[nIndex]+Low[nIndex])/2.0; break; case 5: dPrice=(High[nIndex]+Low[nIndex]+Close[nIndex])/3.0; break; case 6: dPrice=(High[nIndex]+Low[nIndex]+2*Close[nIndex])/4.0; break; default: dPrice=0.0; } //---- return(dPrice); } //+------------------------------------------------------------------+Pay attention to the function GetAppliedPrice().
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Does anyone have the source code with that variable included. ? Please attach the code.