[R] [R-devel] Source Code for function

Golden, Shelby Go|denS @end|ng |rom NJHe@|th@org
Fri Sep 6 18:48:09 CEST 2019


Hello Bert,

Thank you for the reply and your clarifications. Yes, it might be helpful to look into R’s formal grammar to see how “function” parses input to delegate correct syntax. Is that accessible online?

Thank you,
Shelby


From: Bert Gunter <bgunter.4567 using gmail.com>
Date: Friday, September 6, 2019 at 10:44 AM
To: "Golden, Shelby" <GoldenS using NJHealth.org>
Cc: "r-help using R-project.org" <r-help using r-project.org>, "Gillenwater, Lucas" <GILLENWATERL using NJHEALTH.ORG>
Subject: Re: [R] [R-devel] Source Code for function

1. This is a plain text list; all html is stripped. So there is no red highlighting.

2. There is no "source code" for "function" -- it is a reserved keyword.
Or are you looking for R's formal grammar -- e.g. how it parses input to determine correct syntax?



Bert Gunter

"The trouble with having an open mind is that people keep coming along and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )


On Fri, Sep 6, 2019 at 8:51 AM Golden, Shelby <GoldenS using njhealth.org<mailto:GoldenS using njhealth.org>> wrote:
Hi all,

I have been attempting to access the source code for the keyword “function” to better understand how it assigns and stores logical inputs, like in the subset() [base] function. Does anyone know how I can access the source code for this?

For example, if I have
norm <- function(x){
      sqrt(x%*%x))
}
I am looking for the source code for the “function” portion, highlighted in red.

Thank you for your time and assistance,
Shelby Golden
Lab Researcher Technician
Dr. Russell Bowler’s Lab
Department of Medicine
National Jewish Health in Denver, CO
Phone: (303) 270-2598

NOTICE: This email message is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message.
        [[alternative HTML version deleted]]

______________________________________________
R-help using r-project.org<mailto:R-help using r-project.org> mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help<http://mx2.njhealth.org:32224/?dmVyPTEuMDAxJiZmMWRiYmMxZjFmNmI5ZDBkMz01RDcyOEQwN18yMjk2OF8zOTk2XzEmJjljNzlmMDA4YWRmZTZjMz0xMjMzJiZ1cmw9aHR0cHMlM0ElMkYlMkZzdGF0JTJFZXRoeiUyRWNoJTJGbWFpbG1hbiUyRmxpc3RpbmZvJTJGci1oZWxw>
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html<http://mx2.njhealth.org:32224/?dmVyPTEuMDAxJiZlMTkwYmMwMzFlNjk4ZTAzNz01RDcyOEQwN18yMjk2OF8zOTk2XzEmJmFkYTkxMWRkMWRhZTFkNz0xMjMzJiZ1cmw9aHR0cCUzQSUyRiUyRnd3dyUyRVItcHJvamVjdCUyRW9yZyUyRnBvc3RpbmctZ3VpZGUlMkVodG1s>
and provide commented, minimal, self-contained, reproducible code.

	[[alternative HTML version deleted]]



More information about the R-help mailing list