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I have but these do not work. According to AB help files it should.
I even email support for AB but they never gave a response.
thank you
--- In amibroker@xxxxxxxxxxxxxxx, "dingo" <dingo@xxxx> wrote:
> Why don't you experiment a little?
>
>
>
> Like, change the -1 to 0 or 1 or ? and see that the effect is?
>
>
>
>
>
> From the help file:
>
>
>
>
>
> REF
> - reference past/future values of the array
>
> Trading system toolbox
>
>
>
>
> SYNTAX
>
> ref( ARRAY, period )
>
>
> RETURNS
>
> ARRAY
>
>
> FUNCTION
>
> References a previous or subsequent element in a ARRAY. A positive
> period references "n" periods in the future; a negative period
> references "n" periods ago.
>
>
> EXAMPLE
>
> The formula "ref( CLOSE, -14 )" returns the closing price 14
periods
> ago. Thus, you could write the 14-day price rate-of-change
(expressed in
> points) as "C - ref( C, -14 )." The formula "ref( C, +14 )"
returns the
> closing price 12 periods ahead (this means looking up the future)
>
>
> SEE ALSO
>
>
>
>
>
>
>
>
>
> d
>
>
>
> -----Original Message-----
> From: mroman59 [mailto:mroman59@x...]
> Sent: Sunday, March 23, 2003 3:26 PM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: [amibroker] To: Brian Elijah or anyone
>
>
>
> Sorry this is not what I am looking for. The last three lines
> AddColumn(Ref(H,-1),"Hi",1.2);
> AddColumn(Ref(L,-1),"Low",1.2);
> AddColumn(Ref(C,-1),"Close",1.2);
>
> are asking for the close of the previous day and I need the close
> for the future day. The future day is in the database and I am
> running my exploration on a day prior to the current downloaded
data.
>
>
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Brian Elijah" <cadvantag@xxxx>
> wrote:
> > is this what you are looking for
> >
> >
> > //Support & Resistance
> >
> > PP=(H+L+C)/3;
> >
> > S1=(2*PP)-H;
> >
> > R1=(2*PP)-L;
> >
> > S2=PP-(H-L);
> >
> > R2=PP+(H-L);
> >
> > Buy = C>0;
> >
> > Filter = Buy;
> >
> > AddColumn(Ref(C,-1),"PrevClose",1.2);
> >
> > AddColumn(PP,"PP",1.2);
> >
> > AddColumn(S1,"S1",1.2);
> >
> > AddColumn(S2,"S2",1.2);
> >
> > AddColumn(R1,"R1",1.2);
> >
> > AddColumn(R2,"R2",1.2);
> >
> > AddColumn(Ref(H,-1),"Hi",1.2);
> >
> > AddColumn(Ref(L,-1),"Low",1.2);
> >
> > AddColumn(Ref(C,-1),"Close",1.2);
> >
> >
> >
> >
> >
> > ----- Original Message -----
> > From: "mroman59" <mroman59@xxxx>
> > To: <amibroker@xxxxxxxxxxxxxxx>
> > Sent: Wednesday, March 19, 2003 3:41 PM
> > Subject: [amibroker] AB Guru's - I need help please
> >
> >
> > > According to AB User Guide the following is stated:
> > >
> > > The formula "ref( CLOSE, -14 )" returns the closing price 14
> periods
> > > ago. Thus, you could write the 14-day price rate-of-change
> > > (expressed in points) as "C - ref( C, -14 )." The formula "ref
(
> C,
> > > +14 )" returns the closing price 12 periods ahead (this means
> > > looking up the future).
> > >
> > >
> > > Therefore, I wish to calculate simple resistance & support
levels
> > > using the following formula below for a given date and report
the
> > > future C, H, L values which should be in the database, so as
> long as
> > > the date exploration is run on a day previous to the future
> value,
> > > according to User Guide intstruction above. See last three (3)
> lines
> > > of the following code. However, AB 4.30 will not allow me to
> report
> > > any values for this code.
> > >
> > > //Support & Resistance
> > > PP=(H+L+C)/3;
> > > S1=(2*PP)-H;
> > > R1=(2*PP)-L;
> > > S2=PP-(H-L);
> > > R2=PP+(H-L);
> > >
> > > Buy = C>0;
> > > Filter = Buy;
> > > AddColumn(Ref(C,-1),"PrevClose",1.2);
> > > AddColumn(PP,"PP",1.2);
> > > AddColumn(S1,"S1",1.2);
> > > AddColumn(S2,"S2",1.2);
> > > AddColumn(R1,"R1",1.2);
> > > AddColumn(R2,"R2",1.2);
> > > AddColumn(Ref(H,+1),"Hi",1.2);
> > > AddColumn(Ref(L,+1),"Low",1.2);
> > > AddColumn(Ref(C,+1),"Close",1.2);
> > >
> > > Please Advise.
> > > Thank You
> > >
> > > PS - If anyone has any support and resistance formulas other
than
> > > the traditional ones above, taken from stocks and commodities
> > > magazine, I would appreciate your assistance in this area.
> > >
> > >
> > >
> > > Send BUG REPORTS to bugs@xxxx
> > > Send SUGGESTIONS to suggest@xxxx
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> > >
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> > >
> > >
> > >
> > >
>
>
>
>
>
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