[amibroker] Re: Standard Error bands - Indicator

["dcrotty2003" <dcrotty2003@xxxxxxxxxxxx>]

Hi William,

Thanks.

About Standard Error Bands, does anyone use them in their system? If 
so, how?

Do you find them any better than Bollinger Bands?

Thanks Dave.

--- In amibroker@xxxxxxxxxxxxxxx, "William Peters" 
<williampeters@xxxx> wrote:
> The original works correctly it just contain superfluous code (extra
> parameter info), here is the correct forumla. Thanks TJ.
> 
> /* Standard Error Bands */
> Periods = Param("Standard Error", 18, 1, 100, 1);
> 
> function SteBand( array, periods, upper )
> {
>   Lr = LinearReg( array, periods );
>   se = StdErr( array, periods );
>   return LR + IIf( upper, 1, -1 ) * 2 * se;
> }
> 
> upperstderrband = SteBand( C, Periods, True );
> lowerstderrband = SteBand( C, Periods, False );
> midstderrband = (upperstderrband + lowerstderrband )/2;
> 
> Plot( Close, "Close", colorBlack, styleCandle );
> Plot( upperstderrband , "upperstderrband ", colorGreen, 4 );
> Plot( lowerstderrband , "lowerstderrband ", colorRed, 4 );
> Plot( midstderrband , "midstderrband ", colorBlack , styleLine);
> 
> GraphXSpace = 3;
> 
> Regards,
> William Peters
> www.amitools.com
> 
> 
> -----Original Message-----
> From: dcrotty2003 [mailto:dcrotty2003@x...]
> Sent: Saturday December 20, 2003 5:52 PM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: [amibroker] Re: Standard Error bands - Indicator
> 
> 
> Hi William,
> 
> Maybe it's just me, but the Param:
> 
> Periods= Param("Periods", 3, 1, 100, 1);
> 
> ...doesn't seem to work.
> 
> Dave.
> 
> --- In amibroker@xxxxxxxxxxxxxxx, "William Peters"
> <williampeters@xxxx> wrote:
> > Hi,
> >
> > Just sharing some code that I originally found on this forum
> (somewhere) and
> > was subsequently found to be wrong. Tomasz has made the
> corrections so here
> > it is. I've also added it to the AFL library on the AmiBroker web site.
> >
> > /* Standard Error Bands */
> > Var= Param("Standard Error", 18, 1, 100, 1);
> > Periods= Param("Periods", 3, 1, 100, 1);
> >
> > function SteBand( array, periods, upper )
> > {
> >   Lr = LinearReg( array, periods );
> >   se = StdErr( array, periods );
> >   return LR + IIf( upper, 1, -1 ) * 2 * se;
> > }
> >
> > upperstderrband = SteBand( C, Var, True );
> > lowerstderrband = SteBand( C, Var, False );
> > midstderrband = (upperstderrband + lowerstderrband )/2;
> >
> > Plot(upperstderrband ,"upperstderrband ",colorGreen,4);
> > Plot(Close,"Close",colorBlack,styleCandle);
> > Plot(lowerstderrband ,"lowerstderrband ",colorRed,4);
> > Plot(midstderrband ,"midstderrband ",colorBlack ,styleLine);
> > GraphXSpace = 3;
> > Regards,
> > William Peters
> > www.amitools.com


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