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Thanks Bob for the info on TAS...I am enlightened! :>)
Maybe Guy has something he'd rather say, but let me take a crack at it:
He wants to calculate a value, call it U1.
It involves 5 other variables/functions called A-E, plus yesterday's value
of U1.
IF (A > B) then
U1 = (C * D) + yesterday's U1
ELSE
U1 = (C * D) + E.
END IF
In other words, for 1 condition his calculation includes yesterday's U1,
otherwise he just makes a straight calculation. Basically this is a
recursive or iterative equation.
I don't know whether variables A,B,C,D, and E are strictly from today's
calculations or from yesterday's, but he was asking about whether MS had
the ability to keep values around in variables between scans.
Hope I didn't step on anyone's toes trying to explain this!
Dave McAdoo
Colorado Springs, CO
================
----- Original Message -----
From: Bob Jagow <bjagow@xxxxxxx>
To: <metastock@xxxxxxxxxxxxx>
Sent: Tuesday, June 29, 1999 9:44 AM
Subject: RE: Variables
> Guy,
> I can't help because I have a problem visualizing what you are trying to
do
> from
> ---
> Today's U1 := IF A > B
> then
> (C * D) + Prev U1
> ELSE
> (C * D) + E
> ENDIF
> ---
> I know you worry about theft of the Holy Grail, but could you could
> divulge [or make up] some a little more concrete?
>
> Bob
> bjagow@xxxxxxx <mailto:bjagow@xxxxxxx>
>
>
> -----Original Message-----
> From: owner-metastock@xxxxxxxxxxxxx
> [mailto:owner-metastock@xxxxxxxxxxxxx]On Behalf Of Guy Tann
> Sent: Monday, June 28, 1999 10:57 PM
> To: metastock@xxxxxxxxxxxxx
> Subject: RE: Variables
>
>
> Lionel
>
> It's hard to believe that a package such as MetaStock doesn't have the
> capability to save something as simple as 10 variables at the end of each
> day's calculation and pass them to the next day for use. Would really
> simplify my programming, to say the least. The more I look at it, the
> closer I get to working on that Downloader/Excel interface.
>
> Guy
>
>
> -----Original Message-----
> From: owner-metastock@xxxxxxxxxxxxx [mailto:owner-metastock@xxxxxxxxxxxxx]
> On Behalf Of Lionel Issen
> Sent: Monday, June 28, 1999 9:43 PM
> To: metastock@xxxxxxxxxxxxx
> Subject: Re: Variables
>
> Guy:
>
> You cannot do in Metastock what youcan easily do in TAS.
>
> Lionel Issen
> ----- Original Message -----
> From: Guy Tann <grt@xxxxxxxxxxxx>
> To: Metastock <metastock@xxxxxxxxxxxxx>
> Sent: Monday, June 28, 1999 5:17 PM
> Subject: Variables
>
>
> > To All:
> >
> > OK, I dragged out the MetaStock manual and have read all about
variables.
> > On the surface, I question whether or not I'll be able to accomplish in
> > MetaStock what I do in TAS.
> >
> > Here's what I need to do:
> >
> > 1- I have 4 intermediate indicators which I use to calculate my short
> term
> > and long term momentums. In order to work within MS for DOS, I
developed
> an
> > approximation for this calculation that works pretty good, however it
> > doesn't replace the original calculations. For these original
> calculations,
> > I need to use TAS.
> > 2- What I need to do is save the results from the previous day's
> calculation
> > for these 4 indicators. I don't believe that the PREV function will
> work,
> > in so far as my calculations would be circular in nature, without these
4
> > variables.
> > 3- Is there any way in MetaStock to set up a simple set of buckets that
I
> > could use in my calculations? I need a place to store 4 intermediate
> totals
> > and be able to use them the next day. In TAS, it effectively builds
> arrays
> > of each variable and you can reference any one of them, any number of
> days
> > back.
> >
> > An example of what I'm talking about is:
> >
> > Today's U1 := IF A > B
> > then
> > (C * D) + Prev U1
> > ELSE
> > (C * D) + E
> > ENDIF
> >
> > Since U1 Prev is dependent upon the previous day's values of A and B,
> unless
> > MS provides a bucket somewhere to hold the value of the previous day's
> U1,
> > the system will have to go into a loop in order to calculate today's U1,
> > thereby recalculating U1 to the nth each day. I hope this makes sense.
> >
> > Correct me if I'm wrong, but I didn't see mention of independent
> variables
> > being available. All variable references I saw, referred to variables
> that
> > were calculated and used on the same day. Granted, since I don't know
> how
> > MS will perform my calculations, I have to assume that this feature
isn't
> > there.
> >
> > If anybody could point to a place in the MS manual, I'd appreciate it.
> >
> > Thanks
> >
> >
> > Guy Tann
> > grt@xxxxxxxxxxxx
> >
> >
>
>
>
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