[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [amibroker] How to count from arrays?



PureBytes Links

Trading Reference Links

Hi,

It is pretty clear that you are exceeding Barcount. Without knowing more, 
here are a couple of thoughts:

1. I *think* that Barcount is affected by QuickAFL, so if you are running 
your code in a chart it would be less than the normal barcount, something 
closer to the number of visible bars. I have not checked this, just passing 
along a thought. If this is the case, then using SetBarsRequired() or 
zooming out the chart should probably fix the problem.

2. If running the code in AA, maybe one of your tickers has just a few 
quotes?

Steve

----- Original Message ----- 
From: "John Nelson" <trader@xxxxxxxxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Friday, March 24, 2006 12:49 PM
Subject: [amibroker] How to count from arrays?


>
> All,
>
> I'm counting the number of 1's and 0's from arrays which are the results
> of our well-known set of indicators. The 1's and 0's actually represent
> peaks and valleys and I'd like an indication of how many of them there
> are within a specific period starting from the current bar and going back
> myPeriod bars. I've noticed something strange though.
>
> If I try to count in this manner....
>
> for ( i = 0; i < myPeriod; i++ ) {
> if ( myarray[i] == 1 )
> total1 = total1 + 1;
> else
> total2 = total2 + 1;
> }
>
> I stumble across a runtime error that admonishes me for having a subscript
> that is not between 0 ... (BarCount-1). However the following snippet of
> code avoids the runtime error...
>
> for ( i = 0; i < BarCount && i < myPeriod; i++ ) {
>        if ( myarray[i] == 1 )
>                total1 = total1 + 1;
>        else
>                total2 = total2 + 1;
>        }
>
> Now this is really strange since I know "myPeriod" is far less than the
> BarCount. Could it be that AFL operations aren't striclty linear in that
> the results of my array operations preceeding the for loop are not yet
> complete? Could it be that I don't understand how array subscripts work?
>
> So what is the proper way to count the number of 1's and 0's in an array
> starting from the most recent bar and working back?
>
> -- John
>
>
>
>
> 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 other support material please check also:
> http://www.amibroker.com/support.html
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
> 




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 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/

<*> 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/