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[amibroker] Re: How to import XYZ csv data into AB 3D optimization graph?



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Guys, thanks very much for the pointers and AFLs! I will start playing around with this. It gives me some new options to try.

I also was not aware that I could just run the graphing exe separately.

On a somewhat related note, I have another general question, which I am sure others out there have grappled with, or will at some point:

Is AFL suitable to parsing through, summing up, and manipulating larger CSV files (say 60,000 rows by a dozen columns) or should I be looking for a scripting programmer off of Elance to automate Excel for this purpose?

Basically, I am dumping a bunch of different optimizations and backtests to a CSV log file. I want to go through the file, sum up certain rows, count the frequency of certain variables, and generate a few statistics. My AFL skills are probably just good enough to be able to build something to do that. But I don't want to spend time building it, only to ultimately find out that Amibroker either crashes, or that AFL is too slow for the task. I imagine it will require keeping track of a few hundred static variables.

So is the best route:

AFL?
VBscript with Excel?
MYSQL?
Something else?

Thanks.


--- In amibroker@xxxxxxxxxxxxxxx, "bruce1r" <brucer@xxx> wrote:
>
> Ozzy -
> 
> I was here to make another post, but can hopefully offer some quick help
> with an old existing AFL that I had.  You defined the goal as plotting
> an existing CSV file through AB's 3D graphing program O3G.EXE.
> 
> A little background - O3G processes CSV files with a header line
> representing labels,  and then data points with each line in the order
> Z,X,Y.  If your data is in that format, you can just run O3G.  For
> example, here's an example of a first few lines -
> 
> Equity,Period1,Period2
> 83039,5,20
> 146415,5,40
> 150276,5,60
> 
> I did the following AFL as a simple, teaching example for a talk about
> two years ago.  It was intended to show how to generate 2-D ribbon and
> 3-D surface plots with data manipulation in AFL, and to call an external
> program - all wrapped up in one AFL.  So, it generates data internally
> and then calls a routine called Plot3D to write it out to a CSV file,
> run O3G, and return.  If you  have an existing file, it should just be a
> matter of reading it into appropriate variables and calling the routine.
> You might find the info in the header comments useful, also.  You can
> run it as a Scan, Explore, or Indicator.
> 
> The AFL was a little too long to post, look for the file, Plot3D.afl, 
> in the Files section.
> 
> -- BruceR
> 
> P.S. O3G can be useful for visualizing certain things, but manipulation
> of Excel plots from AB opens up some more interesting possibilities. 
> Another story for another day.
> 
> --- In amibroker@xxxxxxxxxxxxxxx, "ozzyapeman" <zoopfree@> wrote:
> >
> > Hello, wondering if anyone has done this before - If I have a csv data
> file containing three data columns, is there a way to import this into
> the AA so I can use AB's 3D graphing utility to see the 3D plot?
> >
> > It seems that AB can only import it's own specific HTML format, not
> plain old CSV.
> >
> > So then an alternate question is - can a CSV file, as previously
> described, be easily converted into AB's required HTML format, either
> with a utility or via some kind of scripting? Can anyone point me to a
> basic methodology? The only scripting language I have a basic handle on
> is VBscript. Hoping this is not too complex.
> >
>




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