[amibroker] AD-line

[kevinoversby]

adv = GetRTDataForeign("bid","AD-NYSE-NYSE-IND");
dec = GetRTDataForeign("ask","AD-NYSE-NYSE-IND");

AddToComposite( adv-dec, "~ADD","C", atcFlagDefaults | atcFlagEnableInIndicator 
);

Plot(Foreign("~ADD","C",1),"AD",1);


The above code plots the ONLY last value of AD-NYSE.  However, I wanted to 
accumulate values in real-time in the composite - any hints on how to do it?

Thanks

Kevin