[R] definition of a function
Berwin A Turlach
statba at nus.edu.sg
Wed Oct 29 05:32:30 CET 2008
G'day George,
On Wed, 29 Oct 2008 06:21:37 +0200
KARAVASILIS GEORGE <gkaravas at ee.duth.gr> wrote:
> Hello, R subscribers.
> I would like to define a function like this one:
> Fun <- function(x) sin(x)/x
> with value 1 at x=0. How can I do that?
Fun <- function(x) ifelse(x==0, 1, sin(x)/x)
> Is there a way to plot it "symbolically", without using x as a vector?
> e.g.
> x <- seq(from=-10, to=10, length=100)
> plot(x, Fun(x))
curve(Fun, from=-10, to=10, n=100)
HTH.
Cheers,
Berwin
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Berwin A Turlach Tel.: +65 6516 4416 (secr)
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