Martin Maechler writes:
I have 3 comments:
Thaler, Thorn, LAUSANNE, Applied Mathematics
thorn.tha...@rdls.nestle.com
on Wed, 5 Jan 2011 11:20:47 +0100 writes:
Hi everybody, Is there a particular reason, why this code
does not work as intended:
z - factor(LETTERS[1:3], ordered =
the following seems an easy solution:
f1 - function(mod){
subs - 1:10
toeval - quote(update(mod, subset=subs))
toeval$subset-subs
eval(toeval)
}
f1(mod.2)
When experimenting with this I once had (by mistake):
mod.2 - lm(update(mod.1, . ~ . - Year + Year)) # instead of
On Jan 6, 2011, at 13:11 , Kenn Konstabel wrote:
the following seems an easy solution:
f1 - function(mod){
subs - 1:10
toeval - quote(update(mod, subset=subs))
toeval$subset-subs
eval(toeval)
}
f1(mod.2)
Tere, Kenn!
Yes, enforcing pass-by-value by pre-evaluating
Kurt Hornik writes
if (!all(sapply(args, is.ordered)) ||
!all(sapply(level.list, identical, y = level.set))) {
I think it would be better to use something like
ll - lapply(args, levels)
!all(sapply(ll, identical, ll[[1L]]))
[using union() is not quite right]
Yes definitely.
on line 1714 of R-lang.texi (current SVN of R-devel, 53919)
@code{x$aa} will match @code{x$aabb} if @code{x} does not a component
should probably have contain or have inserted after not
__
R-devel@r-project.org mailing list
In R 2.12.0 I get
d - data.frame(x=1:10, y=log(1:10), f3=LETTERS[rep(1:3,c(3,3,4))])
m - model.frame(y~.^2, data=d)
formula(m)
y ~ x + f3
In S+ formula(m) gives formula given to model.frame(),
but in R you have to do the following get that formula:
formula(attr(m, terms))
y ~ (x +
I just tried ?Constants at the console and was disappointed that the
so-named base help page would not come up.
?Constants
No documentation for 'Constants' in specified packages and libraries:
you could try '??Constants'
Seems like there should have been a match. I was looking for the
Yes, odd that ?Constants doesn't work, given that there is a page labeled
Constants {base}.
On a happier note, these all work now on my Mac R version 2.11.1
?base
?stats
?utils
though Constants is not an entry in the index.
R help gurus - is it possible to have entries such as Constants
