RE: referring to previous elements

> But i need this to be done more generic and not only for adq1 
> and adq2.
> i need to do this for all the current element and previous elements.
> 
> like "adq[n] and adq[n-1]".

I'm not sure exactly what you want here, so could you give desired output to
for the source in you last post.

Jarno

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