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<SPAN
class=480055716-28092002>Franco:
<SPAN
class=480055716-28092002>
Tomaszwill jump
in here sometime and say that the AMA or ___? other function in Amibroker does
exactly what PREV does in MS and does it faster. I do not use it and so do not
have it committed to memory. You could search in the amibroker yahoo group
for PREV or AMA or wait and perhaps Tomasz or someone else will post a past
message on this topic.
<SPAN
class=480055716-28092002>
<SPAN
class=480055716-28092002>Ken
<FONT face=Tahoma
size=2>-----Original Message-----From: Franco Fornari
[mailto:ffpsi@xxxx]Sent: Saturday, September 28, 2002 12:09
PMTo: amibroker@xxxxxxxxxxxxxxxSubject: Re: [amibroker]
Re: countback line
Hello,
yes, I know there isn't in AFL a function
equivalent to PREV. I tried to use a VB Script, but I'm not able enough. Do
you know if there is, somewhere on the WEB, the original Guppy's
formula?
Best regards,
Franco
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
Stephane
Carrasset
To: <A
href=""
title=amibroker@xxxxxxxxxxxxxxx>amibroker@xxxxxxxxxxxxxxx
Sent: Saturday, September 28, 20024:51
PM
Subject: [amibroker] Re: countback
line
hello,there is not prev function in
Amibrokerprev is a recursive function, BUT you can defind it
with a scripting languagemy choise was since one year was C++but there
is jscript and vbscriptabout the cbl, I think the ms version is not
matching the guppy principles but only an adaptation .this is notthe
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 proposethe
same question again, but I'd need to know if it's possible to convertfrom
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 possibleto
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 > > >
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