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Question on Code snippet semantics

Mick Jordan 
I came across this code in library.R

package <- as.character(substitute(package))

where package is the first argument to the "library" function.

I've been racking my brains to understand why this is not just an 
elaborate (and ineffcient) way to write:

package <- "package"

E.g.

 > package <- as.character(substitute(package))
 > package
[1] "package"
 >

Thanks
Mick Jordan

Thread (3 messages)

Mick Jordan Question on Code snippet semantics Jul 21 Marc Schwartz Question on Code snippet semantics Jul 21 William Dunlap Question on Code snippet semantics Jul 21