Why can't I divide two variables?

Hi!

I'm a newbie on MQL4, but I've done a lot of programming in other languages so the structure is not unknown for me.

But, I have a littel problem that I just can not understand. I have two variables, that i can't divide! I'v tried all ways, but it doesn't work.

Lets say I giva one variabel the value of High > double dHigh=High[i];

where 'i' is the barnr that should be calculated (everything is in a loop).

The other variabel Low > double dLow=Low[i];

If I send those values to the buffer everything is ok, and if I try to divide each of them by a constant everything is ok too.

But, If I try to divide dHigh with dLow - I get nothing? Why doesn't this work? Something fundamental that i've missed? It doesn't matter what value that is assigned to the variables, it just does not work! (the indicator filed in metatrader is blank)

I would really need help with this one guys. Thanks in advance!
/johan

I think you'll need to post your code, or part of it, in order to get some responses.

agreed. I read this before, but I can't do anything unless I at least have a part of the code.

Thanks stockwet.

andersenws

Of course guys, here it comes. I've been experimenting with the code trying to get it work, so it may be a bit "ruff". Anyway:



//+------------------------------------------------------------------+
//| Standarddeviation Prcnt.mq4 |
//+------------------------------------------------------------------+

#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 Red
//---- buffers
double ExtMapBuffer1[];
extern int length=15;
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- indicators
SetIndexStyle(0,DRAW_LINE);
SetIndexBuffer(0,ExtMapBuffer1);
string short_name = "Fucking test at:";
IndicatorShortName(short_name);

//----
return(1);
}
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//----

//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
int i,counted_bars=IndicatorCounted();
double StdDev;
double StdPrcnt;

//----
i=Bars-counted_bars;
while(i>=0)
{
StdDev=iStdDev(NULL,0,length,MODE_SMA,0,PRICE_TYPICAL,i);
StdPrcnt=StdDev/Close[i];
ExtMapBuffer1[i]=StdPrcnt;

i--;
}
//----
return(0);
}
//+------------------------------------------------------------------+



What I want to do, is to get the standarddeviation as a percentage of the price - not in points...

/Johan