I am trying, with extremely limited success, to get the R software to
do some simple computations. Specifically, I defined a test function
as follows:
fn <- function () {
hw <- "hello world"
hw
s <- seq (0, 0.98, 0.02)
s
}
The output should just be the words "hello world," followed by a
sequence going from 0 to 0.98.
However, when I call the little test function:
fn ()
the words "hello world" get lost and do not come out. Instead, the
output begins with
[1] 0.00 0.02, etc
However, when I write a test function for just the words "hello
world," the words come out just fine.
Here is the setup:
R-2.2.0 using the English language and the console
Windows XP Home Edition Service Pack 2
AVG Antivirus Free Version
Windows built-in firewall
The R buffered output is disabled.
Mozilla Firefox 1.5
Administrator privileges are enabled.
Your advice?
Tom Jones
Placing a variable on a line by itself only invokes print if you type it in from the console. In a function you must use an explicit print. On 2/2/06, Thomas L Jones <DrJones at alum.mit.edu> wrote:> I am trying, with extremely limited success, to get the R software to > do some simple computations. Specifically, I defined a test function > as follows: > > fn <- function () { > > hw <- "hello world" > > hw > > s <- seq (0, 0.98, 0.02) > > s > > } > > The output should just be the words "hello world," followed by a > sequence going from 0 to 0.98. > > However, when I call the little test function: > > fn () > > the words "hello world" get lost and do not come out. Instead, the > output begins with > > [1] 0.00 0.02, etc > > However, when I write a test function for just the words "hello > world," the words come out just fine. > > Here is the setup: > > R-2.2.0 using the English language and the console > Windows XP Home Edition Service Pack 2 > AVG Antivirus Free Version > Windows built-in firewall > The R buffered output is disabled. > Mozilla Firefox 1.5 > Administrator privileges are enabled. > > Your advice? > > Tom Jones > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html >
To print something you use print().
Auto-printing ensures that the value of an expression is (usually) printed
at the top-level prompt and not otherwise. So your function could be
fn <- function() {
print("hello world")
seq(0, 0.98, 0.2)
}
(Please use a more informative subject line.)
On Thu, 2 Feb 2006, Thomas L Jones wrote:
> I am trying, with extremely limited success, to get the R software to
> do some simple computations. Specifically, I defined a test function
> as follows:
>
> fn <- function () {
>
> hw <- "hello world"
>
> hw
>
> s <- seq (0, 0.98, 0.02)
>
> s
>
> }
>
> The output should just be the words "hello world," followed by a
> sequence going from 0 to 0.98.
>
> However, when I call the little test function:
>
> fn ()
>
> the words "hello world" get lost and do not come out. Instead,
the
> output begins with
>
> [1] 0.00 0.02, etc
>
> However, when I write a test function for just the words "hello
> world," the words come out just fine.
>
> Here is the setup:
>
> R-2.2.0 using the English language and the console
> Windows XP Home Edition Service Pack 2
> AVG Antivirus Free Version
> Windows built-in firewall
> The R buffered output is disabled.
> Mozilla Firefox 1.5
> Administrator privileges are enabled.
>
> Your advice?
>
> Tom Jones
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html
>
--
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595