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Fred,
perhaps you should read again your
http://groups.yahoo.com/group/amibroker/message/38177
I posted
http://groups.yahoo.com/group/amibroker/files/varPER.txt
to cover temporarily this subject for both categories 1 and 2 as
clearly descibed by Tomasz.
Do you prefer votes than codes ?
I did not understand the aggressive style and I will not add anything
towards this direction.
I prefer much better the AFL posibilities, no matter if some people
call it ..."band-aide programming"
Dimitris Tsokakis
--- In amibroker@xxxxxxxxxxxxxxx, "Fred" <fctonetti@xxxx> wrote:
> Fine ... but maybe you should go back and read the history of this
> conversation. I thought the primary importance was to have the
> functions be able to deal with arrays, any arrays without having to
> bandaide things by saving things into what should be protected
arrays
> to begin with and beyond that it would be "nice" to have variable
> periodic capabilities for those functions that are NOT EASILY
> REPLICATABLE in straight AFL code. As I posted days ago it's a
> simple enough exercise to build ones own variable period MACD or
RSI
> using the functions that already exist WITHOUT resorting to
> for/while/if/else, but for some functions to the best of my
knowledge
> it's just not possible.
>
> The constant mis-characterization of discussions like this as "WE
> MUST HAVE THIS ASAP" or this is URGENT is worse than listening to
the
> liberal press and it's of no particular value to have questions
that
> were never asked then answered and purported to be solutions for
> problems that don't exist.
>
> --- In amibroker@xxxxxxxxxxxxxxx, "dingo" <dingo@xxxx> wrote:
> > You really should chill out. If you don't like what he's doing
then
> > don't use it. You're getting very possessive of this product and
> being
> > very ungrateful for the contributions of others if they don't do
it
> the
> > way that you think it ought to be done.
> >
> > Step back and re-read your messages this am.. did you forget to
> take
> > that little purple pill?
> >
> > d
> >
> > -----Original Message-----
> > From: Fred [mailto:fctonetti@x...]
> > Sent: Saturday, April 19, 2003 11:27 AM
> > To: amibroker@xxxxxxxxxxxxxxx
> > Subject: [amibroker] Re: Fw: Smoothing Factors
> >
> >
> > Not to mention the fact that at least from my own perspective I
> could
> > care less about doing this for functions that are easily dealt
with
> > in straight AFL without the newer for/while/if/else constructs
> which
> > by their nature will slow things to a semi-crawl.
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "Fred" <fctonetti@xxxx> wrote:
> > > Nope, I just find it amusing that after poo-poo'ing this stuff
> for
> > > days, it's obvious that a bunch of effort got put into
something
> > not
> > > though to be worth while and personally I don't like band-aide
> > > programming.
> > >
> > > --- In amibroker@xxxxxxxxxxxxxxx, "dingo" <dingo@xxxx> wrote:
> > > > Pretty grumpy there, Fred!
> > > >
> > > > d
> > > >
> > > > -----Original Message-----
> > > > From: Fred [mailto:fctonetti@x...]
> > > > Sent: Saturday, April 19, 2003 11:14 AM
> > > > To: amibroker@xxxxxxxxxxxxxxx
> > > > Subject: [amibroker] Re: Fw: Smoothing Factors
> > > >
> > > >
> > > > Urgent ? The only thing URGENT is your apparent need to find
> > work
> > > > arounds.
> > > >
> > > > --- In amibroker@xxxxxxxxxxxxxxx, "Dimitris Tsokakis"
> > > <TSOKAKIS@xxxx>
> > > > wrote:
> > > > > Here is some applications.
> > > > >
> > > > > /*Analytic RSI of an Array with fixed period*/
> > > > > t=14;// fixed period
> > > > > Var=C;// variable array
> > > > > Up=IIf(Var>Ref(Var,-1),abs(Var-Ref(Var,-1)),0);
> > > > > Dn=IIf(Var<Ref(Var,-1),abs(Var-Ref(Var,-1)),0);
> > > > > Ut=Wilders(Up,t);Dt=Wilders(Dn,t);
> > > > > RSIvar=100*(Ut/(Ut+Dt));// the RSI of an array with fixed
> period
> > > > > Plot(RSIvar,"",1,1);
> > > > > Plot(RSI(t),"",2,2);// verification1
> > > > > Plot(RSIA(Var,t),"",4,8);// verification2
> > > > >
> > > > > /*Analytic RSI of an Array with variable period*/
> > > > > Tvar=14;// variable period
> > > > > Var=C;// variable array
> > > > > Up=IIf(Var>Ref(Var,-1),abs(Var-Ref(Var,-1)),0);
> > > > > Dn=IIf(Var<Ref(Var,-1),abs(Var-Ref(Var,-1)),0);
> > > > > Ut1=AMA(Up,1/Tvar);Dt1=AMA(Dn,1/Tvar);
> > > > > RSIvar1=100*(Ut1/(Ut1+Dt1));// the RSI of an array with
> > variable
> > > > period
> > > > > Plot(RSIvar1,"",4,8);
> > > > > Plot(RSI(14),"",2,2);// verification
> > > > >
> > > > > Application1: the RSI of Close when period varies from 14
to
> 28
> > > > >
> > > > > Tvar=14+Cum(1)%15;// variable period from 14 to 28
> > > > > Var=C;// variable array
> > > > > Up=IIf(Var>Ref(Var,-1),abs(Var-Ref(Var,-1)),0);
> > > > > Dn=IIf(Var<Ref(Var,-1),abs(Var-Ref(Var,-1)),0);
> > > > > Ut1=AMA(Up,1/Tvar);Dt1=AMA(Dn,1/Tvar);
> > > > > RSIvar1=100*(Ut1/(Ut1+Dt1));// the RSI of an array with
> > variable
> > > > period
> > > > > Plot(RSIvar1,"",4,8);
> > > > > Plot(RSI(14),"",2,1);// comparison with RSI(14)
> > > > >
> > > > > Application2 : The RSI of StochD(20) with variable period
> from
> > 14
> > > > to 28
> > > > >
> > > > > Tvar=14+Cum(1)%15;// variable period from 14 to 28
> > > > > Var=StochD(20);// variable array
> > > > > Up=IIf(Var>Ref(Var,-1),abs(Var-Ref(Var,-1)),0);
> > > > > Dn=IIf(Var<Ref(Var,-1),abs(Var-Ref(Var,-1)),0);
> > > > > Ut1=AMA(Up,1/Tvar);Dt1=AMA(Dn,1/Tvar);
> > > > > RSIvar1=100*(Ut1/(Ut1+Dt1));// the RSI of an array with
> > variable
> > > > period
> > > > > Plot(RSIvar1,"",1,8);
> > > > >
> > > > > Tvar=14;// fixed period
> > > > > Var=StochD(20);// variable array
> > > > > Up=IIf(Var>Ref(Var,-1),abs(Var-Ref(Var,-1)),0);
> > > > > Dn=IIf(Var<Ref(Var,-1),abs(Var-Ref(Var,-1)),0);
> > > > > Ut1=AMA(Up,1/Tvar);Dt1=AMA(Dn,1/Tvar);
> > > > > RSIvar2=100*(Ut1/(Ut1+Dt1));// the RSI of an array with
fixed
> > > period
> > > > > Plot(RSIvar2,"",4,8);
> > > > >
> > > > > Since we read urgent requests for this subject, use
> temporarily
> > > > these AFL solutions until Tomasz will add similar subjects to
> > > > > official editions/upgrades.
> > > > >
> > > > > ----- Original Message -----
> > > > > From: Dimitris Tsokakis
> > > > > To: amibroker@xxxxxxxxxxxxxxx
> > > > > Sent: Saturday, April 19, 2003 2:04 PM
> > > > > Subject: Smoothing Factors
> > > > >
> > > > >
> > > > > Any EMA or Wilders smoothing may contain variable period
> > through
> > > > AMA smoothing.
> > > > > We just need some relations, posted many times in this list.
> > > > > Save somewhere the IB code for further reference
> > > > >
> > > > > Wilderssmooth=14;
> > > > > EMAsmooth=2*Wilderssmooth-1;
> > > > > AMAsmooth=2/(EMAsmooth+1);
> > > > > Plot(Wilders(C,Wilderssmooth),"",1,1);
> > > > > Plot(EMA(C,EMAsmooth),"",4,8);
> > > > > Plot(AMA(C,AMAsmooth),"",2,2);
> > > > >
> > > > > you will verify that after the 2*t first bars the tree
plots
> > > > coincide [with a second decimal accuracy]
> > > > > and we can call them the same thing.
> > > > > Consequently, any T/A formula including EMA [like MACD] or
> > > Wilders
> > > > [like RSI] smoothing may be equivalent
> > > > > to an AMA formula, which accepts variable period by default.
> > > > > Since MA, DEMA and TEMA also accept variable period, I do
not
> > see
> > > > any smoothing procedure missing in AFL
> > > > > structure.
> > > > > Dimitris Tsokakis
> > > >
> > > >
> > > >
> > > > Yahoo! Groups Sponsor
> > > >
> > > >
> > >
> >
>
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