[amibroker] Re: Strange response of -1.#J in explorer column - what is that ?

["gmorlosky" <gmorlosky@xxxxxxxxx>]

Turns out to be the divide by zero error.
So what is the proper way to write this code ?
ROCSP = ROC(MA(SetForeign("^GSPC"),13));


--- In amibroker@xxxxxxxxxxxxxxx, "gmorlosky" <gmorlosky@xxx> wrote:
>
> I ran this calculation to get the percentage change between the 
symbol and a base index of the SP500, but I get this strange -1.#J 
value in explorer.
> 
> ROCSP = ROC(MA(SetForeign("^GSPC"),13));
> RestorePriceArrays();
> MyRSC = ROC(MA(C,13)) / ROCSP;
> AddColumn(MyRSC,"MyRSC",2.2,IIf(MyRSC >= 
> 0 ,colorGreen,colorRed),colorDefault,50);
>



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