From katie.cheon at gmail.com  Mon May  5 20:58:46 2008
From: katie.cheon at gmail.com (Kyeongmi Cheon)
Date: Mon, 5 May 2008 13:58:46 -0500
Subject: [Rd] Is there any way to find out how a certain functions are
	implemented in R?
Message-ID: <d9ad173c0805051158k38d6eb6dxfca5146420e6c75b@mail.gmail.com>

Hello
I wrote a bootstrap program in C language that is called and run by R.
When I tried it, it is slow

and I'm trying to write and run the whole thing in C. But I cannot use
handy functions in R and

need to figure out how to write those functions by myself. Is there
any way that I can get the

actual codes that implement functions in R so that I can translate
them into other languages? For

example, after I generate bootstrap samples in C, I want to simplify
the new dataset just like I

did it in R using "aggregate(data$variable1,
list(data$variable2,data$variable3), length) or

aggregate(data$variable1, list(data$variable2,data$variable3), sum)
etc". How could I do that in C

and is there any way to find out how it is implemented in R? Thank you.
Kyeongmi
Univ. Memphis



[Rd] Is there any way to find out how a certain functions are implemented in R?
Kyeongmi Cheon