Dear List,
just out of pure curiosity: is it possible to define a function via
'substitute()' such that the function's formal arguments are specified
by a wildcard that is substituted when the expression is evaluated?
Simple example:
x.args - formals(data.frame)
x.body - expression(
out
Le 26/05/11 17:04, Simon Urbanek a écrit :
On May 26, 2011, at 10:40 AM, Romain Francois wrote:
Hello,
I'm looking for examples of how to handle serialization of external pointers.
We use external pointers intensively in Rcpp for modules and one popular
request is to have persistence. And
I think for the case where you want to built up a call from a function
name + list of arguments, it's best to use call or as.call:
call(f, a = 1, b = 2, c = 3)
or if you already have the list:
l - list(as.name(f), a = 1, b = 2, c = 3)
as.call(l)
Hadley
On Thu, May 26, 2011 at 10:15 AM, Janko
Thanks a lot Hadley, think I got it figured out now.
expr - substitute(
myFoo - function(
myArg=0
){
print(hello world!)
eval(BODY)
if(... %in% names(formals(as.character(sys.call())[1]))){
print(data.frame(...))
} else {
Hi everyone,
just wanted to ask what's the smartest/recommended way of defining
getter and setter function *shortcuts* (i.e. something like [, [-)
for Reference Class objects?
Or is it desired to not use this stuff, but define methods like
'obj$getSubset(row=1:3, col=1)' and
Dear list,
I'm getting some strange behavior with Reference Classes every once in a
while and I can't really put my finger on the cause. It'd be great if
someone using Reference Classes could check if he/she experiences
similar problems:
The thing is that when I alter the definition of a
One descriptive statistic that is conspicuously missing from core R is the
statistical mode - the most frequent value in a discrete distribution.
I would like to propose adding the attached 'statmode' (or a similar
function) to the 'stats' package.
Currently, it can be quite cumbersome to
Thanks for the help!
On 5/23/11 8:58 PM, Simon Urbanek simon.urba...@r-project.org wrote:
Sean,
On May 23, 2011, at 2:03 PM, Sean Robert McGuffee wrote:
On 5/23/11 1:30 PM, Simon Urbanek simon.urba...@r-project.org wrote:
On May 23, 2011, at 12:56 PM, Sean Robert McGuffee wrote:
