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Jayson,
The reason that I have posted these examples is because with the earlier
versions of AB, ( before Barindex() was introduced ) ,when we wanted to know
the bar number of some value...it was written as follows:
y=ValueWhen( H==HHV(H,260), Cum(1) );
So, why has it now changed....Therefore, rendering any caluculations using
the above formula type, USELESS!!??
I am trying to understand....
If I now want to know the Bar Number....what is the proper formula ????
Anthony
-------Original Message-------
From: amibroker@xxxxxxxxxxxxxxx
Date: Sunday, March 23, 2003 17:36:16
To: amibroker@xxxxxxxxxxxxxxx
Subject: RE: [amibroker] Re: Explain output please for clarification
Anthony,
Cum(1) is one ahead because it starts counting with 1. BarIndex starts
counting with 0. Try.........
x=ValueWhen( H==HHV(H,260), BarIndex() );
y=ValueWhen( H==HHV(H,260), Ref(Cum(1),-1) );
Filter=1;
AddColumn(x,"x",1);
AddColumn(y,"y",1);
Jayson
-----Original Message-----
From: Anthony Faragasso [mailto:ajf1111@xxxxxxxx]
Sent: Sunday, March 23, 2003 1:21 PM
To: amibroker@xxxxxxxxxxxxxxx
Subject: Re: [amibroker] Re: Explain output please for clarification
x=ValueWhen( H==HHV(H,260), BarIndex() );
y=ValueWhen( H==HHV(H,260), Cum(1) );
Filter=1;
AddColumn(x,"x",1);
AddColumn(y,"y",1);
-------Original Message-------
From: amibroker@xxxxxxxxxxxxxxx
Date: Sunday, March 23, 2003 12:42:09
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] Re: Explain output please for clarification
> BARINDEX
> - get zero-based bar number
Ok, you can start counting from 1 or from 0 and "zero-based" means that
barindex() starts counting from 0.
> returns zero-based bar number - the same as Cum(1)-1 but it is
cum(1) instead starts counting from 1. So barindex() gives 0 for the first
bar and cum(1) gives 1 for the first bar. As clearly stated in the manual
barindex() == cum(1) - 1.
Clear enough?
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