why division don't works??

savio12 · #1 (**permalink**) 03-14-2007, 07:38 PM

it's impossible to calculate this:

why??????

Linuxser · #2 (**permalink**) 03-15-2007, 03:37 PM

Because a number divided by itself is equal to zero.

dResult = (dLow/(dHigh+0.0000001));

Is that what you want?

zero.gif

skero6 · #3 (**permalink**) 03-17-2007, 01:29 PM

it's no the same number because dlow is the previous imomentum value and dhigh is the present(today) value of imomentum. previous\present is my purpose but it 's impossible to calculate.

//--------------------------------+

//| My_First_Indicator.mq4 |
//| Codersguru |
//| http://www.forex-tsd.com |
//+------------------------------------------------------------------+
#property copyright "Codersguru"
#property link "http://www.forex-tsd.com"
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 Red
//---- buffers
double ExtMapBuffer1[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- indicators
SetIndexStyle(0,DRAW_HISTOGRAM);
SetIndexBuffer(0,ExtMapBuffer1);
string short_name = "Your first indicator is running!";
IndicatorShortName(short_name);
//----
return(1);
}
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//----
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
int counted_bars=IndicatorCounted();
//---- check for possible errors
if (counted_bars<0) return(-1);
//---- last counted bar will be recounted
if (counted_bars>0) counted_bars--;
int pos=Bars-counted_bars;
double dHigh , dLow , dResult,dresult2;
Comment("Hi! I'm here on the main chart windows!");
//---- main calculation loop
while(pos>=0)
{
dHigh = iMomentum(NULL,0,5,PRICE_CLOSE,pos);
dLow = iMomentum(NULL,0,5,PRICE_CLOSE,pos+1);
dResult = (dLow/(dHigh));\\\ previous/today value

ExtMapBuffer1[pos]= dResult ;
pos--;
}
//----
return(0);
}

omelette · #4 (**permalink**) 03-17-2007, 07:11 PM

You should ensure the momentum lookback period has been accounted for, as well as the check-for-zero...........

PHP Code:


			
//--------------------------------+





//| My_First_Indicator.mq4 |

//| Codersguru |

//| http://www.forex-tsd.com |

//+------------------------------------------------------------------+

#property copyright "Codersguru"

#property link "http://www.forex-tsd.com"

#property indicator_separate_window

#property indicator_buffers 1

#property indicator_color1 Red

extern int Momentum_Period = 5;

//---- buffers

double ExtMapBuffer1[];

//+------------------------------------------------------------------+

//| Custom indicator initialization function |

//+------------------------------------------------------------------+

int init()

{

//---- indicators

SetIndexStyle(0,DRAW_HISTOGRAM);

SetIndexBuffer(0,ExtMapBuffer1);

string short_name = "Your first indicator is running!";

IndicatorShortName(short_name);

//----

return(1);

}

//+------------------------------------------------------------------+

//| Custor indicator deinitialization function |

//+------------------------------------------------------------------+

int deinit()

{

//----

//----

return(0);

}

//+------------------------------------------------------------------+

//| Custom indicator iteration function |

//+------------------------------------------------------------------+

int start()

{

int counted_bars=IndicatorCounted();

//---- check for possible errors

if (counted_bars<0) return(-1);

//---- last counted bar will be recounted

if (counted_bars < Momentum_Period)

 int pos=Bars-Momentum_Period-1;

else pos=Bars-counted_bars-1;

double dHigh , dLow , dResult,dresult2;

Comment("Hi! I'm here on the main chart windows!");

//---- main calculation loop

while(pos>=0)

{

dHigh = iMomentum(NULL,0,Momentum_Period,PRICE_CLOSE,pos);

dLow = iMomentum(NULL,0,5,PRICE_CLOSE,pos+1);

dResult = dLow/dHigh; // previous/today value



ExtMapBuffer1[pos]= dResult ;

pos--;

}

//----

return(0);

}