[R] Union of list elements

Patrick Meyer patrick.meyer at internet.lu
Fri Dec 17 20:04:41 CET 2004

Thank you Gabor.

But I have a problem with the beginning of my algorithm, where the list 
you call L is empty... then the code breaks down... It says:

"Error in any(...,na.rm = na.rm) : incorrect argument type"

How can I handle this?

Thank you very much for your help


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