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Hello,
No, Equity works well too inside functions BUT.. you
have to ensure that Buy/Sell/... BuyPrice/ ... variables used inside function
are declared as GLOBAL. This is so because Equity uses global buy/sell
variables to evaluate results.
function BlahBlah()
{
global Buy;
global Sell;
Buy = ...
Sel = ...
e = Equity();
...
}
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "DIMITRIS TSOKAKIS" <TSOKAKIS@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Tuesday, October 07, 2003 8:09 AM
Subject: [amibroker] Re: The top10 ROC(C,1)
> Tomasz,
> thank you for your comments, but, I was expecting a similar behavior
> with Equity() function.
> As you see at
> http://groups.yahoo.com/group/amibroker/message/49275
> this attempt failed.
> I can not explain it.
> Equity() function worked properly inside loops, for example, the
> for(k=30;k<50;k=k+5)
> {
> Buy=Cross(RSI(),k);Sell=Cross(50,RSI());z1=Equity(1,0);
> Plot(z1,"",1,1);
> }
> gives the expected result.
> Is there any problem when we use Equity() inside a Function ?
> TIA
> Dimitris Tsokakis
> --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <amibroker@xxxx>
> wrote:
> > Dimitris,
> >
> > Your AFL coding is poetry !
> > Thanks for showing the power of AFL.
> >
> > Best regards,
> > Tomasz Janeczko
> > amibroker.com
> > ----- Original Message -----
> > From: Dimitris Tsokakis
> > To: amibroker@xxxxxxxxxxxxxxx
> > Sent: Saturday, October 04, 2003 11:26 PM
> > Subject: [amibroker] The top10 ROC(C,1)
> >
> >
> > Hypothesis :
> > *My Nasdaq100 stocks are placed in Group254.
> > *They are 101, the 100 stocks and the index ^NDX.
> > *They are absolutely aligned, they begin from the same date and
> include the same bars.
> > Question :
> > The top10 last day ROCs.
> > The idea :
> > I will read the 101 ROC values for the last day and then I will
> place them as the last 101 elements of an artificial array H0.
> > Then, I will search for the highest value.
> > As soon as it is detected and localised in detail, in the very
> next step it will be replaced by -1000 .
> > In the new search the 2nd highest will be detected etc.
> > There is an internal loop counter to give the rank #
> > A solution :
> > There is no need for any exploration.
> > In indicator builder window paste the
> >
> > // Top10 ROCs
> > function naming( listnum,ORdNo )
> > {
> > list = GetCategorySymbols( categoryGroup, listnum );
> > for( i = 0; ( sym = StrExtract( list, i ) ) != ""; i++ )
> > {
> > if(i==ORdno)
> > {
> > n1=sym;
> > }
> > }
> > return n1 ;
> > }
> > function select( listnum )
> > {
> > list = GetCategorySymbols( categoryGroup, listnum );
> > Rank = 0;
> > for( i = 0; ( sym = StrExtract( list, i ) ) != ""; i++ )
> > {
> > C1 = Foreign( sym, "C" );
> > f=LastValue(ROC(C1,1));
> > Rank[BarCount-1-i] = f[i];
> > }
> > return Rank ;
> > }
> > No=254;// my N100 database is in Group254
> > R= Select(No);H0=Select(No);G=0;
> > Plot(H0,"",2,2);
> > G0=0;
> > L1=LastValue(Cum(1));
> > N=101;// the population of my database
> > TOP=10;// 10 may change from 1 to 101
> > Counter=0;Title="Top10 ROC"+"\n";
> > for(K=1;K<=TOP;K++)
> > {
> > H1=LastValue(HHV(H0,n));
> > BAR1=LastValue((ValueWhen(H0==H1,Cum(1)-1)));
> > H0[BAR1]=-1000;
> > Counter=Counter+1;
> > G0[L1-CountER]=-H1;
> > shape=IIf(Counter==1,shapeDigit1,
> > IIf(Counter==2 ,shapeDigit2,
> > IIf(Counter==3 ,shapeDigit3,
> > IIf(Counter==4 ,shapeDigit4,
> > IIf(Counter==5 ,shapeDigit5,
> > IIf(Counter==6 ,shapeDigit6,
> > IIf(Counter==7 ,shapeDigit7,
> > IIf(Counter==8 ,shapeDigit8,
> > IIf(Counter==9 ,shapeDigit9,
> > shapeDigit0)))))))));
> > PlotShapes((Cum(1)==bar1+1)*shape,Counter,0,Graph0,5);
> > Title=Title+WriteVal(Counter,1.0)+")"+WriteVal(H1)+ " ["+WriteVal
> (L1-bar1-1,1.0)+"-"+naming(254,L1-bar1-1)+"]"+ "\n";
> > }
> > Plot((Cum(1)>L1-N)*R,"",(H0==-10)*6+1,2);
> > Plot(0,"",1,1);
> > GraphXSpace=3;
> >
> > and you will have all related info.
> > The ROC magnitudes, for a useful visual outline at a glance, the
> top10 ROCs, the values, the ordinal No of the stocks, the names,
> everything.
> > The graph and its info is unique, it will remain the same when
> you move from ticker to ticker and will change by the next EOD update.
> > A similar procedure may give the bottom10 stocks.
> > Ranking questions for an individual stock, indicators arrays for
> individuals or the whole WatchList/Group etc have clear and quick
> solutions
> > thanks to the great GetCategorySymbols() function.
> > The rest is looping tricks of a non-programmer and it is better
> to make an indulgent criticism...
> > Dimitris Tsokakis
> >
> > Yahoo! Groups Sponsor
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> >
> >
> >
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