[R] Accessing C source files

Jeff Newmiller jdnewm|| @end|ng |rom dcn@d@v|@@c@@u@
Mon Aug 5 15:56:08 CEST 2019

You cannot see C source code unless you download the source code tar.gz file and extract files from it. I gave you the URL. However, you are going to have to do some self-study to make sense of it... this is not the right place to learn/teach about how to download files or how C software works.

On August 5, 2019 6:43:59 AM PDT, ravi <rv15i using yahoo.se> wrote:
>Hi Jeff,Thanks for your quick answer. But I don't understand. I have
>installed R from the installer (I think that it is called the binary).
>Do you mean that I will have to do it via the source? Will I see the
>source code only then? Are there any other methods? In any case, it
>would be helpful if you can explain what you mean by "downloading the
>source code".Thanks,Ravi
>On Monday, 5 August 2019, 15:32:00 CEST, Jeff Newmiller
><jdnewmil using dcn.davis.ca.us> wrote:  
>Seems like you are looking in the wrong place. Did you download the
>source code? [1]
>[1] https://cran.r-project.org/
>On August 5, 2019 6:18:14 AM PDT, ravi via R-help
><r-help using r-project.org> wrote:
>>Hi all,On looking at the source code for the integrate function, I
>>that it has the following call:
>>wk <- .External(C_call_dqagi, ff, rho = environment(),            
>>as.double(bound), inf, as.double(abs.tol), as.double(rel.tol),        
>>    limit = limit)How do I access the source code for C_call_dqagi?
>>From other references ("Writing R-extensions section 6.9), I find a
>>reference to Rdqagi when discussing the integrate function. I would
>>like to know if C_call_dqagi and Rdqagi are the same.How do I access
>>the source code for either of these functions? From the article titled
>>"R help desk Acessing the sources" by Uwe Ligges in Rnews_2006-4, I
>>gather that the C files can be found in the folder $R_HOME/src/main/.
>>But when I look at the equivalent folder in R 3.6.1, I find that the
>>main sub-folder is missing in src (the only sub-folder found there is
>>library). I do not find any C file in the src subfolder 
>>Where do I find the C source files? How do I get to look at them? I
>>have a lot of follow-up questions on interfacing with the C files, but
>>I would like to first know where I can find them. At least on how I
>>access them.Thanks,Ravi Sutradhara
>>    [[alternative HTML version deleted]]
>>R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
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>>and provide commented, minimal, self-contained, reproducible code.

Sent from my phone. Please excuse my brevity.

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