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<SPAN
class=226491023-06032003>Perhaps you are using an older version of AB that does
not support parameters? If so just set PDS=21 (or what ever look back you
desire)......
Jayson
<FONT face=Tahoma
size=2>-----Original Message-----From: Alan Nouray
[mailto:alann@xxxxxxxxxxxx]Sent: Thursday, March 06, 2003 3:26
PMTo: amibroker@xxxxxxxxxxxxxxxSubject: [amibroker] Re:
Twiggs Money Flow formulaHi Jason,Thank you for
your time posting the code. When I paste the code, I get the error
message:Unknown identifier in
line:pds=Param(--------^What could be the
problem?Alan--- In amibroker@xxxxxxxxxxxxxxx, "Jayson"
<jcasavant@xxxx> wrote:> Anthony,> I was not trying to rub
it in at all. As a past MS user I had the same> problem understanding
= and ==. Any way, thanks for the link to the paper.> I tried
to follow the logic he explained in the the construction and found a>
different approach for translation in AB......> > >
pds=Param("TMF periods",21,1,100,1);> TRH=Max(Ref(C,-1),H);>
TRL=Min(Ref(C,-1),L);> tr=ATR(1);>
ADV=((C-TRL)-(TRH-C))/tr*V;> sadv=Wilders(Adv,pds);>
svol=Wilders(V,pds);> TMF=sadv/svol;> Plot(tmf,"Twiggs Money
Flow",IIf(tmf>0,colorGreen,colorRed),2);> GraphXSpace=5;>
> > The resulting value is the same as the MS translation however
it does not> use the WV calculation that confused me and utilizes the
built in ATR> function. You might also enjoy the histogram variation
as it clearly> demonstrates accumulation versus distribution.>
> > Jayson> -----Original Message-----> From:
Anthony [mailto:axon50@xxxx]> Sent: Thursday, March 06, 2003 7:34
AM> To: amibroker@xxxxxxxxxxxxxxx> Subject: [amibroker] Re: Twiggs
Money Flow formula> > > Hi Jayson,> No need to rub
it in. Anthony F. has already pointed out my> stupidity :(>
> Seriously though, there was a huge lag yesterday before posts
were> coming up so I guess you did not see my earlier admission
of> dumbness.> > I remember all sorts of variations like
.EQ. for "equals" and I> always used to read := as "set to equal">
Very confusing for an amateur. I have never used Metastock but its>
combination for "equals" seems easier to grasp.> > Back to the
topic. The formula now works and for those unfamiliar> with it and would
like to read more, check out> <A
href="">http://www.incrediblecharts.com/technical/twiggs_money_flow.htm>
> Best regards,> Anthony> > --- In
amibroker@xxxxxxxxxxxxxxx, "Jayson" <jcasavant@xxxx> wrote:> >
Anthony,> > I also do not understand the logic behind line 6 however,
I think> the reason> > your code is failing is due to
your use of the equal sign. When> you set a> > variable you
use, = as in x=c+1;> > However when you
are trying to use mathematical equal within the> code you> >
must use == as in c==42> >>
> No Symbol Meaning>
> 1 ^ Exponentiation>
> 2 - Negation - Unary minus>
> 3 * Multiplication>
> 4 / Division>
> 5 + Addition>
> 6 - Subtraction>
> 7 < Less than>
> 8 > Greater than>
> 9 <= Less than or equal
to> > 10 >= Greater than or
equal to> > 11 == Equal to>
> 12 != Not equal to>
> 13 & Bit-wise "And" (AFL
2.1+)> > 14 | Bit-wise "Or" (AFL
2.1+)> > 15 NOT Logical
"Not"> > 16 AND Logical
"And"> > 17 OR Logical
"Or"> > 18 = Variable assignment
operator> >> >> >> > try....>
>> >> > periods=Param("TMF periods",21,1,100,1);>
> TRH=Max(Ref(C,-1),H);> > TRL=Min(Ref(C,-1),L);> >
TR=TRH-TRL;> > ADV=((C-TRL)-(TRH-C))/(IIf(TR==0,999999,TR))*V;>
> WV=V+(Ref(Volume,-1)*0);> >
TMF=IIf(WV==0,0,Wilders(ADV,periods)/Wilders(WV,periods));> >>
> Plot(tmf,"",colorRed,1);> >> >> >
Jayson> > -----Original Message-----> > From: Anthony
[mailto:axon50@xxxx]> > Sent: Wednesday, March 05, 2003 8:32
PM> > To: amibroker@xxxxxxxxxxxxxxx> > Subject: [amibroker]
Twiggs Money Flow formula> >> >> > Hi all>
> I have seen people using this and became curious enough to check
it> > out. It is based on the theme of the Chaiken Money Flow
Index but is> > designed to better handle price gaps and volume
spikes. Colin Twiggs> > is behind it.> >> > He
has given a Metastock formula for it:> > periods:=Input("TMF
periods",1,100,21);> > TRH:=Max(Ref(C,-1),H);> >
TRL:=Min(Ref(C,-1),L);> > TR:=TRH-TRL;> >
ADV:=((C-TRL)-(TRH-C))/If(TR=0,999999,TR)*V;> >
WV:=V+(Ref(V,-1)*0);> >
If(WV=0,0,Wilders(ADV,periods)/Wilders(WV,periods))> >> >
Now even though I cannot work out what the sixth line is supposed to>
> represent you would think that this was easy enough for me to> >
translate but whatever I have done is wrong:> > periods=Param("TMF
periods",21,1,100,1);> > TRH=Max(Ref(C,-1),H);> >
TRL=Min(Ref(C,-1),L);> > TR=TRH-TRL;> >
ADV=((C-TRL)-(TRH-C))/(IIf(TR=0,999999,TR))*V;> >
WV=V+(Ref(Volume,-1)*0);> >
TMF=IIf(WV=0,0,Wilders(ADV,periods)/Wilders(WV,periods));> >>
> Any thoughts appreciated> >> > Regards> >
Anthony> >> >>
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