Fred, my post did not refer to your code; your code is fine and does 
what it is supposed to do. I just outlined some problems one may 
encounter when working with First/LastVisibleBar.

The problems I eluded to have all happened to me at one time or another 
and resulted in a waste of my time. I use RT however I assume the 
problems can occur in EOD just the same. The problems can easily be 
confirmed by right-justifying your chart, running my code, 
adding/removing the SetBarsRequired() and/or changing the number of 
Blank bars in Preferences. You will note that LastVisibleBar marker 
appears and disappears depending on what one might have assumed to be 
unrelated conditions.

best regards,
herman

Fred wrote:
> Herman,
>
> While I'd admit that the statement I posted really should take the 
> LastValue i.e.
>
> HVC = LastValue(Highest(ValueWhen(BarIndex() >= Status
> ("FirstVisibleBar") AND BarIndex() <= Status("LastVisibleBar"), C)));
>
> I don't follow the rest of your post ... With or without bars in the 
> right margin I seem to get the correct result when HVC is plotted ...
>
> Under what conditions do you not get the correct result ...
>
>
>
>
>
>
> 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
>
>
>
>  
>
>
>
>
>   


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