Hi,
I am trying to use the merge command in the data.tables package.
However, when I run the command I am not sure if it is running the merge
command from the base package or the merge command from data.tables.
When I run "methods(generic.function="merge")' it informs me that
'merge.data.table" is "non-visible".
I am just trying to run the merge command on two data tables using the
index, is there anything else that I need to do (my googling has simply left
me uncertain about how to get this to work).
Thanks for your help!

Ted Rosenbaum
Graduate Student
Department of Economics
Yale University

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