4 messages · Peng Yu, Charlie Sharpsteen, David Winsemius +1 more
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. Could somebody let me know
how to locate source file in an R installation? Why typing
'attributes' does not give its definition?
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. Could somebody let me know
how to locate source file in an R installation? Why typing
'attributes' does not give its definition?
A call to .Primitive() means that the function hands off execution to internal code in the R environment. This internal code is most likely in the form of a compiled C or Fortran function. To see what happens inside a .Primitive() call, you will have to start digging into the R source code. I think a good place to start may be to download and unpack the R source and then look at: R-2.x.y/src/main/names.c Which contains a table mapping .Primitive() and .Internal() calls to their c-level counterparts. Good luck! -Charlie
View this message in context: http://n4.nabble.com/How-to-find-where-the-source-code-of-an-R-function-or-package-is-installed-tp930625p930631.html Sent from the R help mailing list archive at Nabble.com.
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.
______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
David Winsemius, MD Heritage Laboratories West Hartford, CT
Check out: Uwe Ligges. R Help Desk: Accessing the sources. R News, 6(4):43-45, October 2006
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. Could somebody let me know
how to locate source file in an R installation? Why typing
'attributes' does not give its definition?
______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve?