[R] R questions

[Uwe Ligges]

You might want to read
Ligges (2003): R Help Desk: Getting Help - R's Help Facilities and 
Manuals, R News 3(1), 26--28,
http://cran.r-project.org/doc/Rnews/Rnews_2003-1.pdf


Uwe Ligges


Lynda wrote:

>  I have a few questions for R:
> 
> 1. Other than using a built-in function such as mean(), how do I know if 
> it is installed in my current version of R?
> 
> 2. To get help in R, I can use several ways:
> ?sort
> help.search("sort")
> help(sort)
> apropos("sort")
> the help menu
> 
> are there any other ways to get help?
> 
> 3. When I see a help menu for a function, does it mean the function is 
> installed?
> 
> 4. If I execute a program file that contains output files that doesn't 
> have a path specified, which path is it going to output to? Is it the 
> Current Working Directory that the output file is going to output? if I 
> change the working directory by using setwd(), is that going to change 
> where the output file path permanently until I specify it again?
> 
> Thanks a lot!
> Lynda
> 
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