You need an extra level of braces to resolve the ambiguity:
> function(x) {x^2} -> f3
function(x) {x^2} -> f3
> .Last.value
function(x) {x^2} -> f3
You need to do it as follows:
> {function(x) {x^2}} -> f3
> f3
function(x) {x^2}
Of course the inner braces around the x^2 are not necessary, now.
Bill Venables.
-----Original Message-----
From: Robin Hankin [mailto:[EMAIL PROTECTED]
Sent: Monday, June 23, 2003 1:32 PM
To: [EMAIL PROTECTED]
Subject: [R] right assignment ("->") and functions
Hi everyone
check this out [R-1.7.0]:
R> f1 <- function(x){x^2}
R> f1 -> f2
R> f2(4)
[1] 16
R>
R> function(x){x^2} -> f3
function(x){x^2} -> f3
R> f3(4)
Error: couldn't find function "f3"
Why does right assignment "->" work in the first but not the second
case? Can anyone else reproduce this?
--
Robin Hankin, Lecturer,
School of Geography and Environmental Science
Tamaki Campus
Private Bag 92019 Auckland
New Zealand
[EMAIL PROTECTED](nospam)
tel 0064-9-373-7599 x6820; FAX 0064-9-373-7042
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