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I don't think that I was the one to say never. I learned long
ago to never say never. Maybe something like "highly improbable..."
You're right, if the close is a small
number and then proceeds to change a larger amount than what the close started
from, that could make a cross. Especially since AB ROC is a
percentage.
Regardless, I always plot my signals because I like visual
conformation. It also makes clear if what looked great in theory was
miserable in practice.
-CS
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
DIMITRIS
TSOKAKIS
To: <A title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxxxxxxxxx
Sent: Thursday, March 13, 2003 1:33
PM
Subject: [amibroker] Re: Formula
question
CS,Well, never say never.Although MA(C,10) and
ROC(C,10) are different curves, they may give cross points for many
stocks. Perhaps not for a high value index, like ^NDX but certainly for
many stocks of $1, $5 or even $50.ROC(C,10)may be >100.Just run
theFilter=1;AddColumn(Highest(ROC(C,10)),"");for the n=1 last
quotation and you will see.Except this, it is meaningless to compare
ROC(C,10) with a price average, the probable crosses are
coincidental...DT> --- In amibroker@xxxxxxxxxxxxxxx,
"Chuck Rademacher" > <chuck_rademacher@x>
wrote:> > I think others may have answered your
question, but I'll approach > it from
a> > different angle.> >
> > ROC is going to give you the rate of change; a very
small number > somewhere> >
between zero and, maybe two at the most.> >
> > The moving average of price could give you a very
high number > (like $50).> >
> > These two numbers will NEVER
cross.> > -----Original
Message-----> > From: the_chairmann
[mailto:jhart_1972@xxxx]> > Sent: Thursday,
March 13, 2003 8:53 AM> > To:
amibroker@xxxxxxxxxxxxxxx> > Subject:
[amibroker] Formula question> > >
> > > I'm new to the programming language
and am trying to familiarize> > myself
with AFL. I'm currently trying to learn the "cross" >
function> > by puting in a simple moving avg
crossing a ROC indicator scan. >
I> > don't know why this is such a struggle
b/c it looks relatively > easy>
> from the user's guide.> >
> > Here's what I
have...> > Buy=
Cross(ROC(14),MA(Close,20));> > >
> any help would appreciated> >
> > >
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