[R] Re:How to create a R -application

[Kevin Wang]

Hi,

On Thu, 7 Oct 2004, Kunal Shetty wrote:

> Example for calculating the mean of  a data set
>
> x <- c(8,11,16,18,6,4,20,25,9,13)
> u <- mean(x)
> u

R is an interpreted language, not a compiled one like C++ or Java.
Therefore you don't compile it.  And for such a simple example, there
isn't much need in doing so.

However, compilation may come in handy when you are running simulations
and/or with some long loops, as interpreted languages aren't really good
at handling loops -- although you can get around with many loops by
vectorisation.  I think Luke Tierney is working on an R Compiler, which
will allow you to compile such simulation and will decrease the running
time a lot...but I'm not sure when it will be released.

Cheers,

Kevin

--------------------------------
Ko-Kang Kevin Wang
PhD Student
Centre for Mathematics and its Applications
Building 27, Room 1004
Mathematical Sciences Institute (MSI)
Australian National University
Canberra, ACT 0200
Australia

Homepage: http://wwwmaths.anu.edu.au/~wangk/
Ph (W): +61-2-6125-2431
Ph (H): +61-2-6125-7407
Ph (M): +61-40-451-8301