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Right click on the axis and select semi-log. This will turn the y
axis into a log scale, now every movement you see on the axis is
basically in percentages. If something moves up a given amount and
then down the same amount, it means the percentage change was the
same. It is especially nice to do this and see exactly how big the 87
crash was compared to recent developments. Also applies to two (or
more) series drawn on the axis. They are now all comparable. If the
first series falls on a log scale and the second fall by a similar
amount, then they fell by the same percentage. The many wonders of the
log transform, works because in the limit the percentage change and
the log is equal and because ln A/B = ln A - ln B ....
Regards
MG Ferreira
TsaTsa EOD Programmer and trading model builder
http://www.ferra4models.com
http://fun.ferra4models.com
--- In equismetastock@xxxxxxxxxxxxxxx, "Jose Silva" <josesilva22@xxxx>
wrote:
> Sorry, Eugene - I forgot that you already have the URSC kit. :)
>
> Try this accurate points-to-% MS indicator code:
>
> ======================
> Points to % conversion
> ======================
> ---8<----------------------------------
>
> { ©Copyright 2002~2005 Jose Silva }
> { For personal use only }
> { http://www.metastocktools.com }
>
> ratio:=Min(C,Ref(C,-1))/Max(C,Ref(C,-1));
> Mom:=Cum(If(C>Ref(C,-1),2-ratio,ratio)*100-100);
>
> Mom
>
> ---8<----------------------------------
>
>
> jose '-)
> http://www.metastocktools.com
>
>
>
> --- In equismetastock@xxxxxxxxxxxxxxx, "Jose Silva" <josesilva22@xxxx>
> wrote:
> > Gene, a basic Rate Of Change (ROC) can do this to some extent:
> > ROC(C,10,%)
> >
> > Another choice would be the Price Oscillator:
> > OscP(1,10,E,%)
> >
> > Note that there is an issue that plagues price-to-percentage
> > conversions: normalization. If an ETF moves from 50 to 100 points
> > (100% increase), and then back to 50 pts again (50% decrease), most
> > ROCs will plot a total net increase of around +50% (instead of 0%
> > net).
> >
> > For a perfect $ to % conversion (and comparing apples to apples),
> > take a look at the URSC kit:
> >
> > http://www.metastocktools.com/URSC/URSC.htm
> >
> >
> > jose '-)
> > http://www.metastocktools.com
> >
> >
> >
> > --- In equismetastock@xxxxxxxxxxxxxxx, "Gene Asken" <dahbull@xxxx>
> > wrote:
> > In the September issue of Stocks, Futures & Options (SFO), Deron
> > Wagner in his article "Profit From Sector ETF Trend Divergence,"
> > presents two "percentage change" charts with an overlay of an ETF
> > vs. S&P 500 as a means of pinpointing divergences between the two.
> > This would entail changing the Y-axis from price to percentage so
> > the relationship between the ETF and the index remains correlated,
> > apples to apples. Is there a way to do this in Metastock?
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