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But that's not what I am doing, Anthony. I am
calculating something in an 'actual' array as if it is in the future. Then
because I want to see it in the future I am shifting the array. Let's take a
simple example. I want to simulate the SP500 in the future. Therefore I mirror
the SP500 let's say over the last 20 days in a new array. Now I want
to see the SP500 in the future. So therefore I am shifting the mirrored time
series and get something like underneath graph :
The Ichimoku example Tomasz gave is exactly the
same story. He calculated a future value in an 'actual' array and then shifted
the array in the future because there you want to see the result. The fact he is
doing a calculation in an 'actual' array does not mean that he is not doing
future calculations ...
Regards, Ton.
PS : Please no remarks about the enclosed code.
It's just an example I was using for a group that's working with AmiBroker here
in Belgium. It does what it should do but ...
----- Original Message -----
Sent: Tuesday, January 06, 2009 12:38
PM
Subject: Re: [amibroker] Graphing beyond
the data
Ton,
I commented on Tomasz's example....I do not see
where the example is calculating a future value, Do you ?
If so, Please point it out to
me.....
Thanks
Anthony
PS. If you are calculating all sorts of
future values....maybe you would be so kind as to post an
example.
----- Original Message -----
Sent: Tuesday, January 06, 2009 4:06
AM
Subject: Re: [amibroker] Graphing
beyond the data
Frankly I do not see the difference Anthony. I
am calculating all kinds of values in an array that are based upon the
future. After having done so, I am shifting the array in the future for
visual purpose. But that's just to show me the values in the graph on the
right place. When making future calculations in the array for me there is no
difference between shifting and extending. So I just do not get your problem
...
Regards, Ton.
----- Original Message -----
Sent: Monday, January 05, 2009 10:40
PM
Subject: Re: [amibroker] Graphing
beyond the data
Bill,
I agree with you....even from the example
that Tomasz provided...I see it as just shifting the current plot to the
right....
not actually calculating some future values
and then plotting them to the right of the last value....
In the example...if you remove the 25 from
the plot statement
Plot( me52,"S1", IIf( Avg26_9
>
me52,colorOrange,colorBlueGrey),styleCloud,Null,Null,25);
It will move / shift the plot
back to the left...
Anthony
----- Original Message -----
Sent: Monday, January 05, 2009 4:23
PM
Subject: Re: [amibroker] Graphing
beyond the data
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@xxxxxxcom>
To:
<amibroker@xxxxxxxxxps.com>
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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