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Hello,
Thanks for your comments.
Yes I saw an improvement in times, but in my case of taking the average of
the foreign's and plotting on 3 other charts I have slightly different
looking moving averages! Probably due to the 3 charts being on a slightly
different time frame.
Improvement around 20% to 25%.
JG
-----Original Message-----
From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf
Of Steve Dugas
Sent: Wednesday, December 02, 2009 9:32 PM
To: amibroker@xxxxxxxxxxxxxxx
Subject: Re: [amibroker] Is there a faster way of writing this AFL?
Hi - Don't know if this will help you much unless you are plotting the same
foreign tickers many times, but for those who optimize here is a good tip -
I have some systems that use a lot of market internals which my code called
using Foreign(). I could see in the profiler that all the calls to
Foreign() accounted for a lot of time, so following a thought that someone
posted here a while back I wrote a seperate little code just to call the
foreign tickers and plotted it as a chart. Not much to see, it just calls
the foreign tickers and saves them to memory using StaticVarSet(). I can
turn it on/off in the params and the title changes to "Success" in green to
let me know whether the static vars are on or off 8 - ) Then in my
system code I replaced all the Foreigns with StaticVarGet(), and just like
that the new code ran 25% faster.
And actually I realized a productivity increase of 50% from it, because the
code took 2+ days to run and it always finished in the middle of the night
and the computer would sit there doing nothing for hours while I was
sleeping - I could only run it every 3 days ( 10 times a month ). Now the
new code finishes in 2 days and I can crank up another opt right away so I
can run 15 in a month instead of 10 - a very nice improvement, and thanks
very much to whoever mentioned it!
----- Original Message -----
From: "potatosoupz" <potatosoupz@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Wednesday, December 02, 2009 11:29 PM
Subject: [amibroker] Is there a faster way of writing this AFL?
> Plot(Foreign("ZZZZ", "Close")/Foreign(XYZ", "Close"), "ZZZZ/ZYX Ratio",
> colorGreen);
>
> I have a few of these and they seem to be slowing down the whole app. Is
> that possible?
>
>
>
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This is *NOT* technical support channel.
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TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
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For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
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**** IMPORTANT PLEASE READ ****
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This is *NOT* technical support channel.
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TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
http://www.amibroker.com/feedback/
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