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TJ,
I don't think we are talking about the same
thing perhaps because of our understanding of the words "shift" and
"extend". To me "shift" means to move to the right into the blank space
and "extend" means to calculate new values in the blank space.
The problem as I see it is shown in the screen shot
below (bars are included for counting purposes). Two charts of a sine
curve in which one is shifted with Plot() by 10 bars into the blank space.
By the definitions above, if the curve is simply shifted the last value
will remain unchanged (as shown) whereas an extended curve would have a
last value around 1 rather than -1.
Based on the definitions above, I view these charts as
evidence that Plot() shifts the curve and does not calculate what the value
should be 10 bars into the future. As far as I can tell, the "extend"
parameter in LineArray() actually does extend into the future as do the
charting tools.
Definitions aside, am I using Plot() correctly or is
there a way to use Plot() in order to get what I call "extend"
functionality. The type of functionality is what is needed for a
variety of studies of the type shown in the TradeStation screen
shots.
Bill
----- Original Message -----
Sent: Monday, January 05, 2009 2:38
PM
Subject: Re: [amibroker] Graphing beyond
the data
No I did not miss the point.
The supported way to EXTEND indicators is to calculate them
as usual and
plot using XShift. In this approach you are using
LAST X bars of
array
as "future"
bars. Then to actually display these future bars at correct
place
you use XShift.
Best
regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
Sent: Monday, January 05, 2009 7:40
PM
Subject: Re: [amibroker] Graphing
beyond the data
TJ,
I think you missed the point. The problem is
one of extension not shifting which Plot() cannot handle.
Extending indicators, as Robert and many of us want to do, is necessary to
identify future values for a variety of studies, including Hurst
channel projections, cycles, etc. Here are TradeStation examples
showing the extension of the analysis (not a shift) into the
future.
Bill
----- Original Message -----
Sent: Monday, January 05, 2009 10:10
AM
Subject: Re: [amibroker] Graphing
beyond the data
Hello,
You can do that using XShift parameter of
Plot() function
http://www.amibroker.com/f?plot
For
coding example, see DispMA (displaced moving average)
that is shipped
with AmiBroker
Best regards,
Tomasz
Janeczko
amibroker.com
----- Original Message -----
From:
"Robert" <disqplay0@xxxxxxxxx>
To:
<amibroker@xxxxxxxxxxxxxxx>
Sent:
Monday, January 05, 2009 3:25 PM
Subject: [amibroker] Graphing beyond
the data
>I have been working on an indicator that would
look into the futur if
> the trend continues or if it reverses. It
will graph to the last day
> of data but I am presently looking at
a five day look ahead. Is there
> a way to graph the pridicted
price beyond the last data point? If so
> a shove in the right
direction would help. Not really sure how to do
> this but would
like to learn, thanks in advance for any support you
> can give to
this question.
>
> Disq
>
>
>
>
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