[amibroker] Re: Events in AB/AFL - use of www.Amibroker.com/feedback

["Gordon" <gordon@xxxxxxxxxxxxxx>]

Hi sidhartha70,

Thanks for your thoughts. I actually did try something like that, but seemed to find some sensitive timing issues. My objective was, as soon as I detected a new bar (this was using one minute bars), to access information about the just completed bar. At least in my experience, it was necessary to introduce a delay so that the Ref(XYZ, -1) function returned information about the bar I was interested in and not the one before it. In the end, I just felt uncomfortable that I had an approach I could rely on as being rock solid.

I think I'll revisit it, but in the end, would love to be able to rely on a built-in function. Assuming I'm successful in revisting a one-off solution, I'll post the results (code).

The exploration start/stop is a little tougher. One way to do it is to invoke AA through VBScript, and do your own pre- and post- processing. Another might be to create ficticious symbols guaranteed to be the first and last symbols visited by the exploration code and use the name() function to test for them.

Regards,

Gordon 

--- In amibroker@xxxxxxxxxxxxxxx, "sidhartha70" <sidhartha70@xxx> wrote:
>
> Gordon,
> 
> I'm pretty sure you can code for this type of stuff already in AFL. You can simply set up your on checks to see if an event has occurred, and if it has, execute any code you want...
> 
> For example, OnBar() that you are talking about could be achieved by looking for a change in DateTime() of the most recent bar...
> 
> --- In amibroker@xxxxxxxxxxxxxxx, "Gordon" <gordon@> wrote:
> >
> > Hi All,
> > 
> > I just posted a new suggestion at www.Amibroker.com/feedback. It occurred to me that most AB users don't know about or use the feedback area. So, I wanted to take a second to highlight the value of using the site to add suggestions and provide feedback for existing ones. If you haven't gone there (you need to be a registered AB user), there are tons of neat suggestions.
> > 
> > My second reason for posting is, I'm curious to know how many would find the addition event-based AFL coding useful -- e.g. functions you write that would be executed automatically upon the occurrence of specific events, such as the current bar jused completed (geared toward tick and other intra-day charts), backtester started, exploration finished, etc.
> > 
> > Regards,
> > 
> > Gordon
> >
>




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