zero divide

deepdrunk · #1 (**permalink**) 04-19-2007, 11:09 PM

Hello,

recently i have the problem with couple of indicators ,they report 'zero divide'
but i am sure there is no division by zero.I checked history and all data is ok.
I tried with other cross then i get that indicator to work but other one reports 'zero divide'.
I suspect that my mt4 is corrupted or i have a virus.
Any one else have same problem ?I would like to avoid reinstallation...

deepdrunk · #2 (**permalink**) 04-20-2007, 05:59 AM

the indicators making problems are wccisqeezev2 and Fx sniper sidewinder overlay,they worked normal before

newdigital · #3 (**permalink**) 04-20-2007, 09:05 AM

Some zero devide fixing example is here Firebird
May beit will help.

Linuxser · #4 (**permalink**) 04-20-2007, 12:10 PM

Quote:

Originally Posted by deepdrunk

the indicators making problems are wccisqeezev2 and Fx sniper sidewinder overlay,they worked normal before

You´re right Deep

But old versions have the same problem.

I´ve tested with 195 and the same happens

Pls, try this one and compare if all is ok.

According with one explanation in MQL forum the best way to fix this is given a "if" condition to the calculus.

So.

We have:

Code:

diff = iATR(NULL,0,KCPeriod,i)*KCFactor;
std = iStdDev(NULL,0,BBPeriod,MODE_SMA,0,PRICE_CLOSE,i);   

bbs = BBDeviation * std / diff;

and change by

Code:

diff = iATR(NULL,0,KCPeriod,i)*KCFactor;
std = iStdDev(NULL,0,BBPeriod,MODE_SMA,0,PRICE_CLOSE,i);
    
if(diff>0) bbs = BBDeviation * std / diff;

Hope it works.

Mistigri · #5 (**permalink**) 04-20-2007, 02:35 PM

I'm sure it has been posted many times, but here is how I usually handle div by zero errors:

bbs = BBDeviation * std / MathMax( diff, 0.000001 );

Hope this helps some.

deepdrunk · #6 (**permalink**) 04-22-2007, 11:01 PM

Hi,

thank you all for help,WCCI v2.1 work,no more 'zero divide' errors.
Fxsniper sidewinder overlay is ex4 so i can't fix it but i wonder how it worked before without problems and now it is giving this error ?

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