Thanks Bill. I think my confusion may have been in part due to my
conflating two distinct meanings of the term "evaluate"; the help for
force says it "forces the evaluation of a function argument" whereas the
help for eval says it "evaluates the ... argument ... and returns the
computed value".
1: substitute(), when given an argument to a function (which will be a
promise) gives you the unevaluated expression given as the argument:
> L <- list(a=1, b=2, c=3)
> str(lapply(L, function(x) substitute(x)))
List of 3
$ a: language X[[i]]
$ b: language X[[i]]
$ c: language X[[i]]
The 'X' a
Hi,
I thought I understood the change to lapply semantics resulting from this,
https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16093
However, would someone care to explain why this does not work?
> L <- list(a=1, b=2, c=3)
> str(lapply(L, function(x){ y <- substitute(x); force(x);
The attached patch corrects a dead link in the treering documentation.
The URL in the manual [1] refers to a personal home page belonging to
Christine Hallman (user "hallman") on the website of the University of
Arizona Laboratory of Tree-Ring Research (LTRR). It seems that the LTRR
personal homep
I pushed the patch to the 3.4 branch. Feel free to test.
Michael
On Wed, Jul 26, 2017 at 4:02 AM, Andrzej Oleś wrote:
> Hi Michael,
>
> it seems that your patch to S4 generics dispatching on `...` is still
> available only in R-devel, and was not included in the minor R-3.4.1
> release. I was wo
I would like to submit issue to wishlist at the bug reporting system (
https://www.r-project.org/bugs.html) based on my emails. Unfortunately I
don't have bugzilla account. Can someone from R-core help to obtain it? (I
see that I should *"ask an R Core member to add you manually to R’s
Bugzilla mem
