Hello,
It seems you are well versed with future arrays. Could you
provide
an example of how to code a line array to simply plot into the
future
without changing x0,y0,x1, and y1 of the array for current bars? I
have tried using the slope of the line, negative offsets for the
current line that equal the shift into the future etc. but none of it
works for me. The problem I am having is a simple one - I do not
want
any of the historical graph changed (no shifting of graphed data
that
already exists). My objective is to simply "continue" the line
array into
the future at the same slope as currently exists for
existing
data.
Thanks,
David K.
--- In amibroker@xxxxxxxxxps.com,
"Ton Sieverding"
<ton.sieverding@...> wrote:
>
>
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 -----
> From:
Anthony Faragasso
> To: amibroker@xxxxxxxxxps.com
> 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 -----
> From: Ton Sieverding
>
To: amibroker@xxxxxxxxxps.com
> 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 -----
> From:
Anthony Faragasso
> To: amibroker@xxxxxxxxxps.com
> 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 -----
> From: wavemechanic
> To: amibroker@xxxxxxxxxps.com
> 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
-----
> From: Tomasz Janeczko
> To: amibroker@xxxxxxxxxps.com
> 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 -----
> From: wavemechanic
> To: AmiBroker, User
> 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 -----
> From: Tomasz Janeczko
> To: amibroker@xxxxxxxxxps.com
> 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@x..>
> 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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>
>
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>
**** IMPORTANT ****
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>
>
*********************
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>
> For NEW
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>
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