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#464855 - 03/15/17 16:01 Suffering from error 111
Joaquin Offline

Registered: 04/29/13
Posts: 31
My script gives
Error 111: Crash in script: compramosSpread();

This error only happens after having run an optimization, with the "Train" option and then clicking on "Backtest".

If I comment out the lines
DataSplit = 80;
NumWFOCycles = 10;

then the backtest works ok, no error is shown. I have looked for the obvious: errors in code, wrong array indexes or divisions by zero, but I think I don't have any of these...

I think the problem is in exceeding the stack size, and I think I know why.
This is the optimize line that makes the script fail:

int lookBacks[5] = {150,300,450,500,700};
LookBack = lookBacks[optimize(0,0,4,1)];

But if I change these lines with this, it doesn't crash:

int lookBacks[3] = {150,300,450};
LookBack = lookBacks[optimize(0,0,2,1)];

Do this make sense to you? Can I upsize the stack value in Zorro Trader?
I am only optimizing one parameter, with 3 possible values. Is it normal that with 5 possible values the stack gets full and makes the script crash?

#464861 - 03/15/17 18:25 Re: Suffering from error 111 [Re: Joaquin]
jcl Offline

Chief Engineer

Registered: 07/22/00
Posts: 25378
Loc: Frankfurt
You can not exceed the stack size this way, so the problem is somewhere else. But it's a hint that is seems to depend on the lookbacks value. Check for exceeding the length of a series somewhere.

The crash happens inside the compramosSpread function, so it should be easy to find which line it is, by placing watch or print(TO_FILE,..) statements in the function.


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