On Nov 28, 2009, at 11:00 PM, Peng Yu wrote:

I'm wondering where is the source of an R function or a package is.
For example, where is 'attributes'?

attributes
function (obj)  .Primitive("attributes")

I also do understand what .Primitive mean.

Looking below, it appears your understanding is different than mine.

Could somebody let me know
how to locate source file in an R installation?

Most R installations do not have the source code. But it is of course available.

https://svn.r-project.org/R/branches/R/src/main/

Why typing
'attributes' does not give its definition?

Because it's a .Primitive? ... which to me anyway means it is not implemented in R code.


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