You probably want to read the Introduction to R that comes with R
(menu: Help>Manuals (in PDF)>Introduction to R).
If you have an function, f, and you type just 'f', then R prints the function,
just as it does for any other object.
> z <- function(x)
+ {
+ if (missing(x)) "<missing x>" else x + 100
+ }
> z
function (x)
{
if (missing(x)) "<missing x>" else x + 100
}
If you want to evaluate a function you must supply the arguments in
parentheses (even if there are no arguments you need the parentheses).
> z(10:12)
[1] 110 111 112
> z()
[1] "<missing x>"
Bill Dunlap
TIBCO Software
wdunlap tibco.com
From: Jon Nash [mailto:jon.n...@hvhs.school.nz]
Sent: Monday, March 10, 2014 11:14 AM
To: William Dunlap
Subject: Re: [R] R Help
Hi Bill,
I start with a > prompt
I type the command in the syntax that appears to be correct
I immediately get a > prompt back
I type getwd and get no indication of any directory at all just the following:
> getwd
function ()
.Internal(getwd())
<bytecode: 0x000000000cb0df80>
<environment: namespace:base>
Jon
On 11 March 2014 03:42, William Dunlap
<wdun...@tibco.com<mailto:wdun...@tibco.com>> wrote:
> I open up the GUI and type setwd("c:/users/jon") and press return. Nothing
> happens
Does "nothing happens" mean that R does not even print "> ", prompting you
to enter more input?
Did you get such a prompt before typing setwd("...")?
What does typing
5:2
cause R to do?
Bill Dunlap
TIBCO Software
wdunlap tibco.com<http://tibco.com>
> -----Original Message-----
> From: r-help-boun...@r-project.org<mailto:r-help-boun...@r-project.org>
> [mailto:r-help-boun...@r-project.org<mailto:r-help-boun...@r-project.org>] On
> Behalf
> Of Jon Nash
> Sent: Monday, March 10, 2014 1:59 AM
> To: r-help@r-project.org<mailto:r-help@r-project.org>
> Subject: [R] R Help
>
> I have just installed R 3.0.3 on Windows 7.
>
> I open up the GUI and type setwd("c:/users/jon") and press return. Nothing
> happens, Ive tried manuals, forums etc ...
>
> An ex-student needs help using this program. I spent 7 years as an IT
> consultant before becoming a maths teacher so Im better than average with
> IT and I cant get it to do anything at all. What's up? Any help greatly
> appreciated.
>
> Jon
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help@r-project.org<mailto:R-help@r-project.org> mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
[[alternative HTML version deleted]]
______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
