|
PureBytes Links
Trading Reference Links
|
--- In amibroker@xxxxxxxxxxxxxxx, "progster01" <progster@xxx> wrote:
>
> My quick impression is that the original code here was written with
> the implicit assumption that "the platform" would be executing it "on
> every bar".
>
> This is the mental paradigm one develops after working with, say,
> EasyLanguage, for a long period of time. However, it is not the right
> mindset for AFL (at least, that's my opinion at this point)
>
Yes, I'm pretty certain Rick's project is a good example of how array
processing can produce a result quickly and easily compared to other
methods.
I'm just about to post a possible solution for Rick's consideration.
> When working with AFL, I would suggest thinking of "all these arrays"
> just sitting there in memory, and a program that will execute just
> once (not on every bar). Is this actually correct? I don't know, and
> I have yet to find documentation on the actual execution model that
> AFL operates under.
>
> What I can say is that my ability to get AFL to do what I intended
> quickly improved once I adjusted my thinking in this fashion.
>
It's an interesting point.
That is how it is presented.
I'm comfortable working with arrays but I haven't developed a feel for
the 'just once' execution (I find that part hard to imagine).
It doesn't affect the way I work but I am curious about it.
Maybe the some of the codesters can explain that part to us.
Others who arrive with a programming background have said in the past
that they had to work at adjusting to array programming (some of them
don't seem to get it for a while).
I definitely visualize rows in a spreadsheet when I am trying to do
something and that works for me (my only prior experience, that has any
relevance to AFL, was mid-level Excel - lucky for me it turned out
quite handy and compensates for a non-programming background).
Bar by bar execution is the exception (to reference bars use array
subscript operators [0] [1] etc where 0 and 1 are the barindex number).
I always set out to work in arrays so flow control and looping are also
exceptions for me (use only when forced to).
Cheers,
brian_z
Please note that this group is for discussion between users only.
To get support from AmiBroker please send an e-mail directly to
SUPPORT {at} amibroker.com
For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
http://www.amibroker.com/devlog/
For other support material please check also:
http://www.amibroker.com/support.html
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/amibroker/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/amibroker/join
(Yahoo! ID required)
<*> To change settings via email:
mailto:amibroker-digest@xxxxxxxxxxxxxxx
mailto:amibroker-fullfeatured@xxxxxxxxxxxxxxx
<*> To unsubscribe from this group, send an email to:
amibroker-unsubscribe@xxxxxxxxxxxxxxx
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
|