Ed -
I got interested in this thread and your posted AFL over coffee
this morning. Looked like an interesting puzzle. Please take the following
constructively. You can pass the table from the procedure, but the bottom line
is that you really do not need OSAKA. Standard arrays (not static) via
VarGet() and VarSet() could be used. Another significant opportunity is to
eliminate the looping - it is going to run very slow with the nested bar
loops.
Anyway, if you want to see it, let me know. If you've moved on
with what you have, that's fine, too.
-- BruceR
--- In amibroker@xxxxxxxxxps.com,
"Edward Pottasch" <empottasch@...> wrote:
>
> hi
Ton,
>
> I couldn't pass it through the procedure. If defined
within the procedure you need to save it to a file to use it elsewhere in the
code (as far as I know). If you do not need procedures it just sits in the
memory.
>
> But the fact that this example code is so slow is due
to the loop within a loop. For the problem I am trying to solve there is no
way around that. So if Amibroker adds multidimensional arrays I guess it will
not be faster but it will be a lot easier,
>
> regards,
Ed
>
>
> ----- Original Message -----
> From: Ton
Sieverding
> To: amibroker@xxxxxxxxxps.com
> Sent: Tuesday, December 29, 2009 4:59 PM
> Subject: Re:
[amibroker] Re: ABTool / multidimensional arrays
>
>
>
>
> Ed, thanks for the code. I've tried it. A very nice quick
intro for OSAKA. Just a simple question. Is there a way in OSAKA to write the
table to internal in stead of external memory ? Should be a hell of a lot
faster ...
>
> Regards, Ton.
>
>
> -----
Original Message -----
> From: Edward Pottasch
> To: amibroker@xxxxxxxxxps.com
> Sent: Tuesday, December 29, 2009 1:11 PM
> Subject: Re:
[amibroker] Re: ABTool / multidimensional arrays
>
>
>
>
> hi Ton,
>
> thanks for your suggestion, I will
remember it for future use. For now I seem to be able to get ahead with the
Osaka plugin. It would be nice if we could define multidimensional arrays in
Amibroker. I thought there have been requests for this but I can't find any in
the suggestions section.
>
> In my example code it can be seen
that you can use a "Osaka" table inside a procedure but you can not pass it to
the main program as a global variable multidimensional array. Therefor it
needs to be saved in a file and later restored.
>
> regards,
Ed
>
>
>
> ----- Original Message -----
>
From: Ton Sieverding
> To: amibroker@xxxxxxxxxps.com
> Sent: Tuesday, December 29, 2009 1:02 PM
> Subject: Re:
[amibroker] Re: ABTool / multidimensional arrays
>
>
>
>
> Hi Ed. I know you will not like what I am suggesting but it
works. At least for me. Before using Static Arrays load a very long time
series like the SP500 and use this as a 'carrier' or 'feeder' for your Static
Array ... I assume you understand what I mean. I am using this trick for all
cases where I need long arrays ...
>
> Regards, Ton.
>
>
> ----- Original Message -----
> From: Edward Pottasch
> To: amibroker@xxxxxxxxxps.com
> Sent: Tuesday, December 29, 2009 11:31 AM
> Subject: Re:
[amibroker] Re: ABTool / multidimensional arrays [1 Attachment]
>
>
>
>
> hi,
>
> I wanted to use multi
dimensional arrays so that I can use a number of levels as a variable. It is
impossible in Amibroker to define a variable number of arrays, or I do not
know how. For instance I tried as a variable: nlev = 4;
>
> for
(k = 0; k <= nlev * 2; k++)
> {
> nn = (k - nlev);
>
global "lev" + nn;
> "lev + nn = Null;
> }
>
> this
does not work. So it seems you can not define a variable number of "normal"
arrays.
>
> Therefor I moved to static arrays. That seemed to
work at first but I encountered problems I did not understand and now I find
this in the manual: "static array variables store only as many bars as there
are currently in use by given chart." Even though I use
setbarsrequired(-2,-2) or setbarsrequired(sbrall) the values inside
the static arrays seem to vary. It depends where you drop your cursor, what
part of the chart you display how they get filled. I thought there was
something wrong in my code, drives you nuts but the values in these static
arrays seem all over the place, pretty much useless for my purposes. Attached
code what I was trying to do. Also I get different results when using
setbarsrequired(-2,-2) and setbarsrequired(sbrall).
>
>
Now I turned to the Osaka plugin but I find that you can fill and restore only
1 element at a time. You can not get an entire row at once. Am I
right?
>
> thanks, Ed
>
>
>
> -----
Original Message -----
> From: Herman
> To: amibroker@xxxxxxxxxps.com
> Sent: Monday, December 28, 2009 9:12 PM
> Subject: Re:
[amibroker] Re: ABTool / multidimensional arrays
>
>
>
> The changes made by Tomasz to the OSAKA plugin are documented in the
readme.
>
> herman
>
>
>
> Edward
Pottasch wrote:
>
> ok thanks. I only find it in the 3-rd party
area. Seems to be unchanged. Didn't know Tomasz improved it. Looks the same
from when I tried it a few years ago. It has very little documentation. Will
try again some day.
>
> to reefbreak: will have a look. For now I
am able to solve my problem using static arrays. I am writing a complicated
scaling in and out system, at least complicated to code where at the entry
signal I define levels for scaling in and out. It looks like I can do without
these multi dimensional arrays and static arrays do the job.
>
>
rgds, Ed
>
>
>
> ----- Original Message -----
> From: Herman
> To: amibroker@xxxxxxxxxps.com
> Sent: Monday, December 28, 2009 5:03 PM
> Subject: Re:
[amibroker] Re: ABTool / multidimensional arrays
>
>
>
> btw, if you haven't tried the OSAKA plugin yet you should give it a
try. Tomasz improved it some time in the past and it gives, if you use it is
intended to be used, high performance multi-column sorting. It is fast and has
full capability to save/read/import tables to/from files - also very fast. It
offers an unlimited number of columns, this may enable you to simulate multi
dimensional tables in a two dimensional field.
>
> I think there
are some ready to run examples in file section.
>
> If you
haven't used this plugin you are missing out on some great functions! I
encourage you to try it.
>
> herman
>
>
>
> reefbreak_sd wrote:
>
> You didn't state your
application, so I don't know if it is relevant, but I posted a 2 dimensional
sort routine in message 136551. This routine reverse sorts tickers and an
indicator value, and keeps the pairs together to be printed in the
Interpretation window.
>
> ReefBreak
>
> --- In amibroker@xxxxxxxxxps.com,
"Edward Pottasch" <empottasch@> wrote:
> ok thanks Herman.
>
> regards, Ed
>
>
>
>
>
> ----- Original Message -----
> From: Herman
> To: amibroker@xxxxxxxxxps.com
> Sent: Monday, December 28, 2009 11:21 AM
> Subject: Re:
[amibroker] ABTool / multidimensional arrays
>
>
>
> The last I heard was that the developer stopped supporting it and
that Tomasz wrote at some point that ABTools wasn't compatible with AB. It
would be risky to use it.
>
> herman
>
> Edward
Pottasch wrote:
>
> hi,
>
> I was looking into
multidimensional arrays again. I know there is the Osaka plugin but never
quite figured out how to use it. However, I found this post:
>
>
http://finance.groups.yahoo.com/group/amibroker/message/40135
>
> all the way from 2003. This ABTool seems just what I need and easy to
understand. However it seems to have been removed. Anyone know the history on
this? Why it has been removed? What is currently the status with
multidimensional arrays in Amibroker?
>
> thanks, Ed
>
>
>
>
>
>
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