[amibroker] Re: How do I get current bar index as a scaler?

["gp_sydney" <gp.investment@xxxxxxxxx>]

Mike,

Array maths works on whole arrays at a time, so there's no such thing
as a current index scalar, and there's no concept of "at any bar".
You're always doing every bar. To do things bar by bar, you need to
use a loop.

However, you can make an array of current indices and use that in
array functions:

ix = Cum(1)-1;

In this case, "ix" is an array containing the sequence zero to
BarCount-1. You can use that anywhere an array can be used, but not as
an index to another array (you can't index one array with another).

Regards,
GP


--- In amibroker@xxxxxxxxxxxxxxx, "Mike" <sfclimbers@xxx> wrote:
>
> Herman,
> 
> Thank you for your reply.
> 
> Unfortunatley, that doesn't quite capture what I was hoping for. If I 
> understand correctly, the bar index used by SelectedValue is fixed 
> during backtesting, and stays fixed until the next user intervention 
> during charting (i.e. until selection of a different bar).
> 
> I was hoping for an easy way to programatically get the current bar 
> index on a bar by bar basis, regardless of whether I'm charting or 
> backtesting, and without user intervention.
> 
> Basically, I want a "getCurrentBarIndex()" function that returns a 
> Number such that for any array at any bar I could write
> 
>   MyScaler = MyArray[getCurrentBarIndex()];
> 
> Thanks,
> 
> Mike
>



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