//+------------------------------------------------------------------+
//| Money Flow Index.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_maximum 100
#property indicator_level1 20
#property indicator_level2 80
#property indicator_buffers 1
#property indicator_color1 Blue
//---- input parameters
extern int ExtMFIPeriod=14;
//---- buffers
double ExtMFIBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
string sShortName;
//----
SetIndexBuffer(0,ExtMFIBuffer);
//---- indicator line
SetIndexStyle(0,DRAW_LINE);
//---- name for DataWindow and indicator subwindow label
sShortName="MFI("+ExtMFIPeriod+")";
IndicatorShortName(sShortName);
SetIndexLabel(0,sShortName);
//---- first values aren't drawn
SetIndexDrawBegin(0,ExtMFIPeriod);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Money Flow Index |
//+------------------------------------------------------------------+
int start()
{
int i,j,nCountedBars;
double dPositiveMF,dNegativeMF,dCurrentTP,dPreviousTP;
//---- insufficient data
if(Bars<=ExtMFIPeriod) return(0);
//---- bars count that does not changed after last indicator launch.
nCountedBars=IndicatorCounted();
//----
i=Bars-ExtMFIPeriod-1;
if(nCountedBars>ExtMFIPeriod)
i=Bars-nCountedBars-1;
while(i>=0)
{
dPositiveMF=0.0;
dNegativeMF=0.0;
dCurrentTP=(High[i]+Low[i]+Close[i])/3;
for(j=0; j<ExtMFIPeriod; j++)
{
dPreviousTP=(High[i+j+1]+Low[i+j+1]+Close[i+j+1])/3;
if(dCurrentTP>dPreviousTP)
dPositiveMF+=Volume[i+j]*dCurrentTP;
else
{
if(dCurrentTP<dPreviousTP)
dNegativeMF+=Volume[i+j]*dCurrentTP;
}
dCurrentTP=dPreviousTP;
}
//----
if(dNegativeMF!=0.0)
ExtMFIBuffer[i]=100-100/(1+dPositiveMF/dNegativeMF);
else
ExtMFIBuffer[i]=100;
//----
i--;
}
//----
return(0);
}
//+------------------------------------------------------------------+
Sample
Analysis
Market Information Used:
Series array that contains close prices for each bar
Series array that contains the highest prices of each bar
Series array that contains the lowest prices of each bar
Series array that contains tick volumes of each bar
Indicator Curves created:
Implements a curve of type DRAW_LINE
Indicators Used:
Custom Indicators Used:
Order Management characteristics:
Other Features: