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Hi Folks
CBL Indicator for AB ?? This may be what you want, below. Think Geoff
Mulhall complied the afl sometime before the plugin came along??
HighDays =13;
A1=IIf(Cum(C<0),1,0);
Aa=H<Ref(HHV(H,Highdays),-1);
bb=Cum(Aa==1);
dd=IIf(bb==Ref(bb,-1),bb-bb +bb,0);
ee=IIf(BarsSince(dd==0)>1,ValueWhen(bb,L,0),0);
kk=IIf(ee==0,Ref(ValueWhen(ee,L,1),ee),0);
zz=IIf(High < HHV(High, HighDays),kk==1,IIf(Ref(L,-2) < Ref(L,-1) AND
Ref(L,-2) < L AND Ref(L,-1) < L, Ref(L,-2), IIf((Ref(L,-3)< Ref(L,-
2) AND Ref(L,-3) < Ref(L,-1) AND Ref(L,-3) < L) AND (Ref(L,-2)< L OR
Ref(L,-1) < L), Ref(L,-3), IIf((Ref(L,-4)< Ref(L,-3) AND Ref(L,-4)
< Ref(L,-2) AND Ref(L,-4) < Ref(L,-1) AND Ref(L,-4) < L) AND (Ref(L,-
3)< L OR Ref(L,-2) < L OR Ref(L,-1) < L), Ref(L,-4), IIf((Ref(L,-5)
< Ref(L,-4) AND Ref(L,-5) < Ref(L,-3) AND Ref(L,-5) < Ref(L,-2) AND
Ref(L,-5) < Ref(L,-1) AND Ref(L,-5) < L) AND (Ref(L,-4)< L OR Ref(L,-
3) < L OR Ref(L,-2) < L OR Ref(L,-1) < L), Ref(L,-5),0)))));
Aaa=zz==0 + kk==0;
bba=Cum(1);
dda=IIf(bba=Ref(bba,-1),bba-bba +bba,0);
eea=IIf(BarsSince(aaA==0)==1,aaa,0);
ffa=IIf(eea=0 ,Cum(eea==1) AND BarsSince(eea==1)==1,Cum(eea>1));
kka=IIf(eea>Ref(eea,-1),Ref(ValueWhen(eea,eea,1),eea),zz);
ssa=IIf(Aaa,ValueWhen(kkA>0,kka,1),ValueWhen(zz==0,L,1));
Plot(HHV(ssa,2),"Count Back Line Value",2,4);
Plot(C,"Todays Close",2,64);
If you want the Metastock version look at Daryl Guppy's site here :
http://www.guppytraders.com/Metastock%20Formulas/metastock%20formula%
206.htm#Countback line for Metastock
also
http://www.guppytraders.com/Metastock%20Formulas/formula%20index.htm
regards
pacific
---------------------------------------------------------------------
--- In amibroker@xxxx, "Stephane Carrasset" <nenapacwanfr@xxxx> wrote:
> hello,
>
> there is not prev function in Amibroker
> prev is a recursive function,
> BUT you can defind it with a scripting language
> my choise was since one year was C++
> but there is jscript and vbscript
>
> about the cbl, I think the ms version is not matching the guppy
> principles but only an adaptation .
> this is not the best trailing stop...
>
> steph
> >
> > thanks for your reply. Maybe you are referring to the dll shared
> by Stephan. I know it, but its logic seems rather different and I'd
> like to match it against Metastock's CBL.
> >
> > Thanks again and best regards
> >
> > Franco
> > ----- Original Message -----
> > From: grant
> > To: amibroker@xxxx
> > Sent: Saturday, September 28, 2002 4:14 PM
> > Subject: Re: [amibroker] countback line
> >
> >
> > Franco,
> > CBL has been converted somewhere here before but I can't
> find it at the moment,
> > maybe if you check AB website formular page. I have a feeling
it
> was also in one
> > of Steven's DLL's. Sorry I'm not much help to you but at least
> you know it's here
> > somewhere, I'll keep looking.
> > Grant
> > Franco Fornari wrote:
> >
> > Hello Tomasz and All, sorry if I propose the same question
> again, but I'd need to know if it's possible to convert from
> Metastock language to AFL any formula containing PREV function.
> Tomasz showed many times, in past, how work AMA and AMA2 but, if
I'm
> not wrong, this case seems different, because in "Countback line"
> Metastock formula, PREV doesn't refer to any averages but to hard
> values. Is it possible to translate the following formula to AFL?
> LowDays := Input("Enter # days to cover last LOW for CBL calc'n:",
> 3, 55, 13);
> > If(LOW > LLV(LOW, LowDays), {then ...} PREV, {previous CBLlo,
> else...} If(Ref(H,-2) > Ref(H,-1) AND Ref(H,-2) > H AND Ref(H,-1) >
> H, {then ...} Ref(H,-2), {2nd day back high,else...} If((Ref(H,-3)>
> Ref(H,-2) AND Ref(H,-3) > Ref(H,-1) AND Ref(H,-3) > H) AND (Ref(H,-
2)
> > H OR Ref(H,-1) > H), {then ... } Ref(H,-3), {3rd day back
> high,else...} If((Ref(H,-4)> Ref(H,-3) AND Ref(H,-4) > Ref(H,-2)
AND
> Ref(H,-4) > Ref(H,-1) AND Ref(H,-4) > H) AND (Ref(H,-3)> H OR Ref
(H,-
> 2) > H OR Ref(H,-1) > H), {then... } Ref(H,-4), {4th day back
> high,else...} If((Ref(H,-5)> Ref(H,-4) AND Ref(H,-5) > Ref(H,-3)
AND
> Ref(H,-5) > Ref(H,-2) AND Ref(H,-5) > Ref(H,-1) AND Ref(H,-5) > H)
> AND (Ref(H,-4)> H OR Ref(H,-3) > H OR Ref(H,-2) > H OR Ref(H,-1) >
> H), {then ...} Ref(H,-5), {5th day back high,else...} PREV )))))
Any
> suggestion will be wellcome. Best regards, Franco
> >
> >
> >
> > Post AmiQuote-related messages ONLY to: amiquote@xxxx
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