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In my simple way of looking
at things B3 gives a popint by point result, whereas B4 uses a series of points
each relying on the previous value of B4 for the next. When you get a single
point of data input to B4 that is detrimental to the result all values from then
on are zero much like the domino effect. If you displayed it before the bad
input bar the indicator chart would be fine.
Cheers,Graham<A
href="">http://groups.msn.com/asxsharetrading<A
href="">http://groups.msn.com/fmsaustralia
<FONT
face=Tahoma size=2>-----Original Message-----From: CS
[mailto:res1wgwl@xxxxxxxxxxx] Sent: Wednesday, 31 December 2003
5:08 AMTo: amibroker@xxxxxxxxxxxxxxxSubject: Re:
[amibroker] Function (Brain) Check
Thanks for responding, Graham.
OK,
I understand that and I always check for denominators = 0,
but B4 is only a 3 period average of B3. My point is
that B4 isn't the part of the equation that has to deal with if B2 =
0.
B2 is always zero at bar 7 (first data plot point) of any
and all plots of any data because LinearReg(C,7) doesn't return data until the
7th bar, and of course at bar 7 HHV and LLV will be the same number, so B2 =
0, but why does B3 plot with no problem?
AFTER bar 7, B3 returns viable data for B4, and plots viable
numbers. The plot of B4 fails for all points.<FONT color=#8b0000
size=2>
Plot<FONT
size=2>(LastValue(<FONT
size=2>ValueWhen(B2==0<FONT
size=2>,Cum(<FONT
face=Verdana size=2>1),1<FONT
size=2>)),"",<FONT
size=2>0,1<FONT
size=2>);
My other point in all this is that when tracing a problem in
a formula, the formula can derail even if the preceding data (B3)
appears good.
Thanks,Corey Saxe
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
<A title=gkavanagh@xxxxxxxxxxxxx
href="">Graham
To: <A title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxxxxxxxxx
Sent: Tuesday, December 30, 2003 3:01
AM
Subject: RE: [amibroker] Function
(Brain) Check
I think the problem
stems from the resulting value of B2 which theoretically be
zero
I replaced it with this
and got a plot
B2= <FONT
face="Courier New" color=#0000ff size=2>Max<FONT
face="Courier New" size=2>( <FONT color=#0000ff
size=2>HHV(A1,<FONT color=#ff00ff
size=2>28) - <FONT color=#0000ff
size=2>LLV(A1,<FONT color=#ff00ff
size=2>28),
<FONT face="Courier New" color=#ff00ff
size=2>0.000001)<FONT
size=2>;
Cheers,Graham<A
href="">http://groups.msn.com/asxsharetrading<A
href="">http://groups.msn.com/fmsaustralia
<FONT
face=Tahoma size=2>-----Original Message-----From: CS
[mailto:res1wgwl@xxxxxxxxxxx] Sent: Tuesday, 30 December 2003
6:36 PMTo: AmiBroker (Yahoo)Subject: [amibroker]
Function (Brain) Check
I am attempting to track down why a simple formula won't
plot.
I'm sure that it's something 'embarrassingly'
simple.
A1=LinearReg(Close,7);
B1=Close-LLV(A1,28);B2=HHV(A1,28) -
LLV(A1,28);B3=100*(B1 / B2);B4=MA( B3 , 3);
<FONT
size=2>Plot(B3,"B3",4,8);Plot(B4,"B4",2,1);
B3 will plot but not B4 (it's empty on all data
files).
I've got >4200 bars loaded...any
ideas?
Thanks,Corey Saxe
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