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[amibroker] Re: New Variable Class



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Stephane,
In AA all the trades are executed with the values of the last WL item.
I do not know how to overcome this.
I can do all this composite creation+optimization  in Ind.Builder and 
select the topEquity stock and period [of course without the rest 
optimization info...]
Dimitris Tsokakis
--- In amibroker@xxxxxxxxxxxxxxx, "DIMITRIS TSOKAKIS" <TSOKAKIS@xxxx> 
wrote:
> Thank you Stephane, I will check it and revert.
> Dimitris Tsokakis 
> --- In amibroker@xxxxxxxxxxxxxxx, "Stephane Carrasset" 
> <nenapacwanfr@xxxx> wrote:
> > the period must be in MFI,
> > 
> > stephane
> > 
> > period=Optimize("pds",10,10,30,1);
> > function Composite( listnum )
> > { list = GetCategorySymbols( categoryWatchlist, listnum );
> > Average = 0;f=0;
> > for( i = 0; ( sym = StrExtract( list, i ) ) != ""; i++ )
> > {
> >  SetForeign(sym,True,True);
> > f=IIf(MFI(period)>50,1,-1);
> >  Average = Average + f;
> > }
> >  return Average ;
> >  }
> > 
> >  Plot( Composite(1), "MeanRSI", colorPink );
> > 
> >  Buy=Cross(CCIa(C,14),0) AND Composite(1)>0;
> > Sell=ExRemSpan(Ref(Buy,-3),3);
> > 
> > 
> > 
> > > Stephane,
> > > Where is this periode involved in your example ?
> > > Is it before or after the composite creation ?
> > > Dimitris Tsokakis
> > > --- In amibroker@xxxxxxxxxxxxxxx, "Stephane Carrasset" 
> > > <nenapacwanfr@xxxx> wrote:
> > > > yes not a main problem, just a little deception, because I 
did 
> > > > believe that I could optimize on composite but it is not the 
> case 
> > > > because as you said the result is aligned with the shortest 
> > history 
> > > > of the younger stock
> > > > 
> > > > ex
> > > > period=Optimize("pds",10,10,30,1);
> > > > function Composite( listnum )
> > > > {
> > > > list = GetCategorySymbols( categoryWatchlist, listnum );
> > > > Average = 0;f=0;
> > > > for( i = 0; ( sym = StrExtract( list, i ) ) != ""; i++ )
> > > > {
> > > > SetForeign(sym,True,True);
> > > > f=IIf(MFI(14)>50,1,-1);
> > > > Average = Average + f;
> > > > }
> > > > return Average ;
> > > > }
> > > > 
> > > > Plot( Composite(1), "MeanRSI", colorPink );
> > > > 
> > > > Buy=Cross(CCIa(C,14),0) AND Composite(1)>0;
> > > > Sell=ExRemSpan(Ref(Buy,-3),3);
> > > > > Stephane,
> > > > > My greenglish are not better [!]
> > > > > On the subject now, I always use composites in aligned 
> database 
> > > and 
> > > > I 
> > > > > didn´t know this. I think it is not a main problem...
> > > > > Dimitris Tsokakis
> > > > > --- In amibroker@xxxxxxxxxxxxxxx, "Stephane Carrasset" 
> > > > > <nenapacwanfr@xxxx> wrote:
> > > > > > Sorry for my frenglish 
> > > > > > yes that's exactly what i mean 
> > > > > > -->GetCategory function will give an output ONLY for the 
> > dates 
> > > > > > > of the younger stock
> > > > > > 
> > > > > > 
> > > > > > > Anthony,
> > > > > > > If you have, in the same group, stocks with different 
> > > starting 
> > > > > > date, 
> > > > > > > then the GetCategory function will give an output ONLY 
> for 
> > > the 
> > > > > > dates 
> > > > > > > of the younger stock. Perhaps this is the meaning of 
> > > Stephane´s 
> > > > > > > comment...
> > > > > > > Dimitris Tsokakis
> > > > > > > --- In amibroker@xxxxxxxxxxxxxxx, "Anthony Faragasso" 
> > > > > > <ajf1111@xxxx> 
> > > > > > > wrote:
> > > > > > > > Stephane,
> > > > > > > > 
> > > > > > > > I do not understand your, "limited to the smallest 
> range 
> > of 
> > > > > data 
> > > > > > > available"
> > > > > > > > 
> > > > > > > > I use these functions everyday with success....I 
> compared 
> > > > your 
> > > > > > > posted
> > > > > > > > formulas and the outputs are the same.
> > > > > > > > 
> > > > > > > > Anthony
> > > > > > > > 
> > > > > > > > ----- Original Message ----- 
> > > > > > > > From: "Stephane Carrasset" <nenapacwanfr@xxxx>
> > > > > > > > To: <amibroker@xxxxxxxxxxxxxxx>
> > > > > > > > Sent: Thursday, November 06, 2003 5:25 AM
> > > > > > > > Subject: [amibroker] Re: New Variable Class
> > > > > > > > 
> > > > > > > > 
> > > > > > > > > Dimitri , that's a great function
> > > > > > > > > except that compared to the composite function the 
> > value 
> > > are
> > > > > > > > > unfortunately limited to the smallest range of data 
> > > > available
> > > > > > > > > for example, compare
> > > > > > > > >
> > > > > > > > > function Composite( listnum )
> > > > > > > > > {
> > > > > > > > > list = GetCategorySymbols( categoryWatchlist, 
> listnum );
> > > > > > > > > Average = 0;f=0;
> > > > > > > > > for( i = 0; ( sym = StrExtract( list, i ) ) != ""; 
> i++ )
> > > > > > > > > {
> > > > > > > > > SetForeign(sym,True,True);
> > > > > > > > > f=IIf(MFI(14)>50,1,-1);
> > > > > > > > > Average = Average + f;
> > > > > > > > > }
> > > > > > > > > return Average ;
> > > > > > > > > }
> > > > > > > > >
> > > > > > > > > Plot( Composite(1), "MeanRSI", colorPink );
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > WITH
> > > > > > > > >
> > > > > > > > > AddToComposite( IIf(MFI(14)>50,1,-
> 1), "~CompMFI", "X");
> > > > > > > > > Buy=Sell=0;
> > > > > > > > >
> > > > > > > > > Plot(Foreign( "~CompMFI", "x"),"~MFI",colorBlue,1);
> > > > > > > > >
> > > > > > > > > stephane
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > > Stephane,
> > > > > > > > > > It is 1-1 equivalent to the "~MeanRSI" artificial 
> > > ticker.
> > > > > > > > > > It is impemented some time ago, the method is 
> clearly 
> > > > > > described 
> > > > > > > in
> > > > > > > > > > Tomasz GetCategorysymbols() description, but, I 
> will 
> > > > repeat 
> > > > > it
> > > > > > > > > here,
> > > > > > > > > > the upgrades are so fast that many users dont 
even 
> > > notice 
> > > > a 
> > > > > > lot 
> > > > > > > of
> > > > > > > > > > new [great] tools.
> > > > > > > > > > See also the extended use of this function in my 
Hi-
> > > pass 
> > > > or
> > > > > > > > > > Inspection Points series. This use is unique, 
> AFAIK, 
> > to 
> > > > > > select 
> > > > > > > the
> > > > > > > > > > ticker with highest Equity from Ind.Builder.
> > > > > > > > > > Dimitris Tsokakis
> > > > > > > > > > --- In amibroker@xxxxxxxxxxxxxxx, "Stephane 
> Carrasset"
> > > > > > > > > > <nenapacwanfr@xxxx> wrote:
> > > > > > > > > > > Dimitri,
> > > > > > > > > > > I like too much this kind of "composite"..
> > > > > > > > > > > stephane
> > > > > > > > > > >
> > > > > > > > > > > > Phsst,
> > > > > > > > > > > > Let us make it better !!
> > > > > > > > > > > > Since some indicators are OHLCV functions 
[not 
> > only 
> > > > > > Close, 
> > > > > > > like
> > > > > > > > > > RSI
> > > > > > > > > > > > ()), SetForeign() gives the solution
> > > > > > > > > > > >
> > > > > > > > > > > > function MeanRSIforGroup( listnum )
> > > > > > > > > > > > {
> > > > > > > > > > > >  list = GetCategorySymbols( categoryGroup, 
> > > listnum );
> > > > > > > > > > > >  Average = 0;
> > > > > > > > > > > >  for( i = 0; ( sym = StrExtract( list, i ) ) !
> > = ""; 
> > > > > i++ )
> > > > > > > > > > > >  {
> > > > > > > > > > > > SetForeign(sym,True,True);
> > > > > > > > > > > >    f=RSI();
> > > > > > > > > > > >
> > > > > > > > > > > > Average = Average + f;
> > > > > > > > > > > >  }
> > > > > > > > > > > >  return Average / i;
> > > > > > > > > > > > }
> > > > > > > > > > > > MeanRSI=MeanRSIforgroup(254);
> > > > > > > > > > > > Plot( MeanRSIforGroup( 254 ), "MeanRSI", 
> > > colorPink );
> > > > > > > > > > > >
> > > > > > > > > > > > Now you may set f=StochD() to have the 
> MeanStochD 
> > > etc.
> > > > > > > > > > > > The above MeanRSI is a unique array for all 
> > tickers 
> > > > and 
> > > > > > may
> > > > > > > > > > replace
> > > > > > > > > > > > the composite procedure, when necessary.
> > > > > > > > > > > > Example: I need to watch every 1min the 
> probable 
> > > > MeanRSI
> > > > > > > > > support
> > > > > > > > > > > > breakout and, the same time, I need AA widow 
> for 
> > > > other 
> > > > > > > jobs. I
> > > > > > > > > > need
> > > > > > > > > > > > also clear mind and cold blood, 10 min before 
> the 
> > > > end, 
> > > > > to
> > > > > > > > > decide
> > > > > > > > > > a
> > > > > > > > > > > > Buy at Close ...[tomorrows Open will be 
> probably 
> > > > > > higher...]
> > > > > > > > > > > > In this case, the price of this function 
alone 
> is 
> > a 
> > > > > > [small]
> > > > > > > > > zero,
> > > > > > > > > > > > ADDED after the last digit of amibroker price.
> > > > > > > > > > > > Tomasz offerred it for free, in some beta 
and, 
> at 
> > > > > least, 
> > > > > > we
> > > > > > > > > > should
> > > > > > > > > > > > know that ...
> > > > > > > > > > > > As for the delay, in my N100 database is less 
> > than 
> > > > 2sec.
> > > > > > > > > > > >
> > > > > > > > > > > > Dimitris Tsokakis
> > > > > > > > > > > > --- In amibroker@xxxxxxxxxxxxxxx, "Phsst" 
> > > > <phsst@xxxx> 
> > > > > > > wrote:
> > > > > > > > > > > > > Dimitris,
> > > > > > > > > > > > >
> > > > > > > > > > > > > Yes I did notice that, but I was not going 
to 
> > > > > embarrass 
> > > > > > > you by
> > > > > > > > > > > > > pointing out that little BUG... <LOL>  (Has 
> > > anyone 
> > > > > seen 
> > > > > > my
> > > > > > > > > > dunce
> > > > > > > > > > > > hat?)
> > > > > > > > > > > > >
> > > > > > > > > > > > > Good work and thanks,
> > > > > > > > > > > > >
> > > > > > > > > > > > > Phsst
> > > > > > > > > > > > >
> > > > > > > > > > > > > --- In amibroker@xxxxxxxxxxxxxxx, "DIMITRIS 
> > > > TSOKAKIS"
> > > > > > > > > > > > <TSOKAKIS@xxxx>
> > > > > > > > > > > > > wrote:
> > > > > > > > > > > > > > Phsst,
> > > > > > > > > > > > > > But, did you see the results list ?
> > > > > > > > > > > > > > If positive, you should notice 300 *same* 
> > > > numbers, 
> > > > > > which
> > > > > > > > > was
> > > > > > > > > > > 300
> > > > > > > > > > > > same
> > > > > > > > > > > > > > MeanRSIs !!!
> > > > > > > > > > > > > > OK, it is written in the user's guide 
that 
> we 
> > > > will 
> > > > > > have
> > > > > > > > > some
> > > > > > > > > > > > delays
> > > > > > > > > > > > > > with GetCategorySymbols(), but not so 
> much !!!
> > > > > > > > > > > > > > Dimitris Tsokakis
> > > > > > > > > > > > > >
> > > > > > > > > > > > > > --- In amibroker@xxxxxxxxxxxxxxx, "Phsst" 
> > > > > <phsst@xxxx>
> > > > > > > > > wrote:
> > > > > > > > > > > > > > > Dimitris,
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > You are a Master at taking AB AFL into 
> > > uncharted
> > > > > > > > > territory.
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > I ran this Explore against a 300 issue 
> > > > watchlist 
> > > > > > for 
> > > > > > > N =
> > > > > > > > > 1
> > > > > > > > > > > last
> > > > > > > > > > > > > > days.
> > > > > > > > > > > > > > > I took 12 minutes to run.
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > Too long... A new persistant variable 
> class 
> > > > with 
> > > > > > > simple
> > > > > > > > > one-
> > > > > > > > > > > pass
> > > > > > > > > > > > > > > reporting would be quick and 
> uncomplicated.
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > Regards,
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > Phsst
> > > > > > > > > > > > > > > --- In 
> amibroker@xxxxxxxxxxxxxxx, "DIMITRIS 
> > > > > > TSOKAKIS"
> > > > > > > > > > > > > > <TSOKAKIS@xxxx>
> > > > > > > > > > > > > > > wrote:
> > > > > > > > > > > > > > > > Phsst,
> > > > > > > > > > > > > > > > the procedure is described at 
> > > > GetCategorySymbols
> > > > > (
> > > > > > > > > > category,
> > > > > > > > > > > > > > index )
> > > > > > > > > > > > > > > > example.
> > > > > > > > > > > > > > > > Here is, for example, the MeanRSI
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > function MeanRSIforGroup( listnum )
> > > > > > > > > > > > > > > > {
> > > > > > > > > > > > > > > >  list = GetCategorySymbols( 
> > categoryGroup, 
> > > > > > > listnum );
> > > > > > > > > > > > > > > >  Average = 0;
> > > > > > > > > > > > > > > >  for( i = 0; ( sym = StrExtract( 
list, 
> > > i ) ) !
> > > > > > = "";
> > > > > > > > > i++ )
> > > > > > > > > > > > > > > >  {
> > > > > > > > > > > > > > > >    C1 = Foreign( sym, "C" );
> > > > > > > > > > > > > > > >    f=RSIa(C1,14);
> > > > > > > > > > > > > > > >    if( i == 0 ) Average = f;
> > > > > > > > > > > > > > > >    else Average = Average + f;
> > > > > > > > > > > > > > > >  }
> > > > > > > > > > > > > > > >  return Average / i;
> > > > > > > > > > > > > > > > }
> > > > > > > > > > > > > > > > Plot( MeanRSIforGroup( 
> 254 ), "MeanRSI", 
> > > > > > > colorPink );
> > > > > > > > > > > > > > > > Filter=MeanRSIforGroup(254)>50;
> > > > > > > > > > > > > > > > AddColumn(MeanRSIforGroup( 254 ), "");
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > It is a bit slow, but it is one-step 
> > > > composite 
> > > > > > > creation
> > > > > > > > > > for
> > > > > > > > > > > > both
> > > > > > > > > > > > > > > > IB/AA.
> > > > > > > > > > > > > > > > Dimitris Tsokakis
> > > > > > > > > > > > > > > > --- In 
> amibroker@xxxxxxxxxxxxxxx, "Phsst" 
> > > > > > > <phsst@xxxx>
> > > > > > > > > > > wrote:
> > > > > > > > > > > > > > > > > Currently, all variables (global 
and 
> > > local) 
> > > > > > > reflect
> > > > > > > > > > > > information
> > > > > > > > > > > > > > > > about
> > > > > > > > > > > > > > > > > the current symbol only.
> > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > To perform calculations against 
> > multiple 
> > > > > > > securities,
> > > > > > > > > > you
> > > > > > > > > > > > must
> > > > > > > > > > > > > > use
> > > > > > > > > > > > > > > > > AddToComposite which restricts the 
> user 
> > to
> > > > > > > > > O,H,L,C,V,OI
> > > > > > > > > > > > fields
> > > > > > > > > > > > > > along
> > > > > > > > > > > > > > > > > with their pre-defined constraining 
> > > formats 
> > > > > > which
> > > > > > > > > > > preclude
> > > > > > > > > > > > the
> > > > > > > > > > > > > > > > > calculation and storage of very 
large 
> > > > > numbers. 
> > > > > > It
> > > > > > > > > also
> > > > > > > > > > > > usually
> > > > > > > > > > > > > > > > > requires at least two passes 
against 
> > > > separate 
> > > > > > AFL 
> > > > > > > or
> > > > > > > > > > > AFL/IB
> > > > > > > > > > > > afl
> > > > > > > > > > > > > > code
> > > > > > > > > > > > > > > > > to work with the results.  There is 
> > > > certainly 
> > > > > a 
> > > > > > > need
> > > > > > > > > for
> > > > > > > > > > > > > > > > > AddToComposite, but I think there 
is 
> > also 
> > > a 
> > > > > > need 
> > > > > > > for
> > > > > > > > > a
> > > > > > > > > > > > simpler
> > > > > > > > > > > > > > set
> > > > > > > > > > > > > > > > of
> > > > > > > > > > > > > > > > > composite values.
> > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > I'd like to see a new variable 
class 
> > > within 
> > > > > AFL 
> > > > > > > for
> > > > > > > > > > > > computations
> > > > > > > > > > > > > > > > > across the entire database or 
> > watchlist. 
> > > > For 
> > > > > > lack 
> > > > > > > of
> > > > > > > > > a
> > > > > > > > > > > > better
> > > > > > > > > > > > > > word,
> > > > > > > > > > > > > > > > a
> > > > > > > > > > > > > > > > > "composite variable" whose value is 
> > > > > maintained 
> > > > > > > across
> > > > > > > > > > > > multiple
> > > > > > > > > > > > > > > > > securities and which the AFL engine 
> > does 
> > > not
> > > > > > > > > initialize
> > > > > > > > > > > > with
> > > > > > > > > > > > > > each
> > > > > > > > > > > > > > > > new
> > > > > > > > > > > > > > > > > symbol. Also, a composite variable 
> that 
> > > can 
> > > > be
> > > > > > > > > > displayed
> > > > > > > > > > > > with
> > > > > > > > > > > > > > > > > AddColumn just like the other 
> variables 
> > > > using 
> > > > > > > Filter
> > > > > > > > > =
> > > > > > > > > > > > LastBar
> > > > > > > > > > > > > > > > logic.
> > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > This would allow the user to put 
> > together 
> > > > > some 
> > > > > > > quick,
> > > > > > > > > > one-
> > > > > > > > > > > > pass
> > > > > > > > > > > > > > > > > explorations for calculating 
multiple 
> > > issue 
> > > > > > stats 
> > > > > > > and
> > > > > > > > > > to
> > > > > > > > > > > > > > display
> > > > > > > > > > > > > > > > those
> > > > > > > > > > > > > > > > > figures in the same afl. No 
> ~Composite 
> > > > files 
> > > > > > > would be
> > > > > > > > > > > > created,
> > > > > > > > > > > > > > and
> > > > > > > > > > > > > > > > > very large numbers could be 
> calculated 
> > > and 
> > > > > > > displayed
> > > > > > > > > > > using
> > > > > > > > > > > > more
> > > > > > > > > > > > > > > > > flexable variable type declarations 
> of 
> > > > float 
> > > > > (or
> > > > > > > > > > others).
> > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > I'm posting this here to see if I 
am 
> > > alone 
> > > > in 
> > > > > > > wanting
> > > > > > > > > > > this
> > > > > > > > > > > > > > feature,
> > > > > > > > > > > > > > > > in
> > > > > > > > > > > > > > > > > which case I won't pass it along to 
> TJ 
> > as 
> > > a
> > > > > > > > > suggestion.
> > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > Comments?
> > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > Phsst
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > Send BUG REPORTS to bugs@xxxx
> > > > > > > > > Send SUGGESTIONS to suggest@xxxx
> > > > > > > > > -----------------------------------------
> > > > > > > > > Post AmiQuote-related messages ONLY to: 
> > > > > amiquote@xxxxxxxxxxxxxxx
> > > > > > > > > (Web page: 
> > > http://groups.yahoo.com/group/amiquote/messages/)
> > > > > > > > > --------------------------------------------
> > > > > > > > > Check group FAQ at:
> > > > > > > > 
> > http://groups.yahoo.com/group/amibroker/files/groupfaq.html
> > > > > > > > >
> > > > > > > > > Your use of Yahoo! Groups is subject to 
> > > > > > > http://docs.yahoo.com/info/terms/
> > > > > > > > >
> > > > > > > > >
> > > > > > > > 
> > > > > > > > 
> > > > > > > > ---
> > > > > > > > Outgoing mail is certified Virus Free.
> > > > > > > > Checked by AVG anti-virus system 
> (http://www.grisoft.com).
> > > > > > > > Version: 6.0.536 / Virus Database: 331 - Release 
Date: 
> > > > 11/4/2003


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