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Dimitris,
StDev in AFL is equivalent to MS Excel STDEVP
(from population)
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "DIMITRIS TSOKAKIS" <TSOKAKIS@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Thursday, September 11, 2003 12:48 PM
Subject: [amibroker] StDev() function
> Tomasz,
> Is z=StDev(C,n); equivalent to MSEXCEL STDEV
> y=sqrt((n*Sum(C^2,n)-Sum(C,n)^2)/(n*(n-1)));
>
> The AFL graph looks like a
> k=(1/n)*sqrt(n*Sum(C^2,n)-Sum(C,n)^2);
> Is this k the internal formula for StDev() ?
> TIA
> Dimitris Tsokakis
>
>
>
>
>
>
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