Re: RSI variants

[Vitaly Larichev <vitaly@xxxxxxxxxxxxx>]

Hi Owen,

I guess I should make a template for answering this question. No, no ... I don't mind helping other,
not at all! It's just amusing to observe the persistence with which Equis refuses to make this
function standard  for quite a few years. Don't give up, Equis!
I might think of starting my own consulting business under the name "RSI (variable, period)" :-) .

Here we go.

Periods:= Input("Enter time periods",1,100,14);
M:=2*Periods - 1;

100 - 100/
(1.+ If(Mov(If(P-Ref(P,-1)<0,-(P-Ref(P,-1)),0),M,E)=0,1000000,
 Mov(If(P-Ref(P,-1)>0,  P-Ref(P,-1), 0),M,E)
/(Mov(If(P-Ref(P,-1)<0,-(P-Ref(P,-1)),0),M,E)+0.000001)
))

Mind that since I didn't use those particular tricks as in the standard RSI (Periods) to speed-up an
initial transitional period, this function for P=Close and standard RSI (Periods) differ for about a
month or two from the day 1 depending on # of Periods, of course. It was not that important for me,
so I used this shortcut.

Hope it helps.

Cheers, Vitaly

Owen Davies wrote:

> I've just received Metastock Pro 7.0 after using the
> competing EOD product for several years.  (Had MS
> back around v. 2.0 or something like that.)  Some
> years ago, I carefully explained my needs to one of
> the Equis support guys, had the impression that I'd
> gotten the idea across, and was told that it was in
> the new release, then just out.  Now I can't find it.
>
> I need a function in this form:  RSI(variable, period),
> to duplicate in a trading system the results of pulling
> RSI down onto, say, on-balance volume or some
> other indicator.  Much as I despise Omega,  I'm not
> at all sure I would have bought Metastock if I hadn't
> been sure it contained such a function.
>
> Can anyone here help?  Has anyone managed to
> craft such a thing within the MS language?  (I tried
> years ago with RSI(OBV, period) but could never
> get it to work right; probably got lost in the logic of
> adapting RS.)  Has anyone built a DLL for it?
> An Excel program I might link to?
>
> If it sounds like I'm really begging for help here,
> you've got the idea.
>
> Many thanks.
>
> Owen Davies