[R] how to identify a symbol is defined from which package

Duncan Murdoch murdoch at stats.uwo.ca
Wed Mar 25 11:48:20 CET 2009


hong shen wrote:
> Hi list,
>
> I encountered a situation that a data frame is defined by two packages. Both of them are loaded by library(). My questions are
>
> 1. How could I tell the data frame is from which package?
>   

find("theName")

will tell you where it found a variable called theName.
> 2. If I want to reference the data frame from package A insted of B, how can I do it?
>   

A::theName

or

B::theName

will find whichever one you want.

Duncan Murdoch
> Thanks!
> hshen
>
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