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Many thanks Rick - that works like a charm .....
Dean
--- In amibroker@xxxxxxxxxxxxxxx, "Rick" <rrogers@xxx> wrote:
>
> Dean:
> here is a formula that i use, hope it helps
> Rick :
>
> VolFactor = 2.5 ; // use this to adjust the amount to truncate
> Per1 = 50 ;
>
> MaxVol = VolFactor*MA(Volume,Per1);
>
> col1 = IIf( Close >= Ref( Close, -1 ), colorBlack,colorRed);
>
> col2 = IIf(Volume > MaxVol,colorBlue, colorLightGrey);
>
> VolTrunc = IIf(Volume > MaxVol,MaxVol,Volume);
>
> Plot (VolTrunc, "VolTrunc", col1, styleHistogram );
>
> Plot( VolTrunc, "VolDot", col2,
> styleDots|styleNoLine|styleNoLabel|styleNoTitle); /* this plots
blue
> dot above truncated volume, grey above others*/
>
> Plot(int(MA(Volume,Per1)),"MA",colorBlue,styleLine);
> Plot( 0, "", colorBlack, styleNoLine|styleNoLabel); /* causes
graph
> to scale to 0*/
> GraphXSpace = 2;
>
> --- In amibroker@xxxxxxxxxxxxxxx, "troll" <deanhodgins@> wrote:
> >
> > Intraday charts often show volumn spike at day's
> > end or 1.00pm as day /programmed positions closed.
> > This can result in "distorted" volumn histogram that
> > requires high upper value with resulting loss of
> > detail for previous part of day.
> >
> > I'm trying to think of way to "dampen" effect of vol spike or
> > adjust scale somehow but not sure how to approach.
> >
> > Couldn't find any previous references on board.
> >
> > As always gratefull any suggestions or pointers.
> >
> >
> >
> >
> > Dean H.
> >
>
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