Displaying 20 results from an estimated 3000 matches similar to: "S3 lookup rules changed in R 3.6.1"
2019 Oct 09
0
S3 lookup rules changed in R 3.6.1
On 09/10/2019 3:22 p.m., Konrad Rudolph wrote:
> tl;dr: S3 lookup no longer works in custom non-namespace environments as of
> R 3.6.1. Is this a bug?
I don't know whether this was intentional or not, but a binary search
through the svn commits finds that the errors started in this one:
------------------------------------------------------------------------
r75127 | hornik |
2005 Jan 17
5
find source code
I am using R 2.0.2 on a WinXP
I am trying to get the code of the Kruskal-Wallis test but
> kruskal.test
function (x, ...)
UseMethod("kruskal.test")
<environment: namespace:stats>
> ls(3)
[1] "acf" "acf2AR" "add.scope"
..............
[181] "kruskal.test" "ks.test"
2009 Sep 09
1
Monkey patching +.POSIXt
Hi all,
This summer I've been working with a grad student to bring more of the
date time classes from JODA (http://joda-time.sourceforge.net/) into
R. To make these work seamlessly with existing date time objects, we
need to patch +.POSIXt. (The ruby community uses the term
monkey-patching for this sort of ill-advised, by sometimes necessary,
internal hackery, hence the title.) The problem is
2019 May 19
2
[R-pkg-devel] Three-argument S3method declaration does not seem to affect dispatching from inside the package.
On Sat, 18 May 2019 at 23:34, Pavel Krivitsky <pavel at uow.edu.au> wrote:
>
> > The issue here is that you are registering a non-standard name
> > (.gen.formula) for that generic and then defining what would be the
> > standard name (gen.formula) for... what purpose? IMHO, this is a bad
> > practice and should be avoided.
>
> The situation initially arose
2010 May 19
2
How to look up source code for cor.test()
Dear all,
how can I check the source code for a hidden function like cor.test()?
At the moment I get ...
> cor.test
function (x, ...)
UseMethod("cor.test")
<environment: namespace:stats>
Thanks in advance,
Will
2011 Aug 26
1
methods() not listing some S3 plot methods...?
Dear List,
This may be related to this email thread initiated by Ben Bolker last
month: https://stat.ethz.ch/pipermail/r-devel/2011-July/061630.html
In answering this Question on StackOverflow
http://stackoverflow.com/q/7195628/429846 I noticed that `methods()` was
not listing some S3 methods for `plot()` provided by the mgcv package.
At the time I wanted to check the development version of R as
2008 Jul 18
2
source code functions
>na.contiguous
function (object, ...)
UseMethod("na.contiguous")
<environment: namespace:stats>
this is what I get when I look for the source code for some functions- Is
there a way to look at the source code?
--
Let's not spend our time and resources thinking about things that are so
little or so large that all they really do for us is puff us up and make us
feel like
2005 Jan 03
4
Inspecting R functions
In S-Plus, I can look at the structure of a function (for example, hist)
simply by entering
hist <RETURN>
however, if I do this in R, I get the response
function (x, ...)
UseMethod("hist")
<environment: namespace:graphics>
How can I inspect the structure of a function in R?
-------------------------------
Richard Dybowski
143 Village Way
2010 Apr 27
2
when setting environment: target of assignment expands to non-language object
Hi,
I am trying to place my own functions in the nlme environment:
The following statement works:
environment(coef.corSPT) <- environment(getS3method("coef","corSpatial"))
but this one returns an error:
environment(get("coef<-.corSPT")) <-
environment(getS3method("coef<-","corSpatial"))
Error in
2020 May 12
4
S3 method dispatch for methods in local environments
Dear All,
In R 3.6.3 (and earlier), method dispatch used to work for methods stored in local environments that are attached to the search path. For example:
myfun <- function(y) {
out <- list(y=y)
class(out) <- "myclass"
return(out)
}
print.myclass <- function(x, ...) print(formatC(x$y, format="f", digits=5))
myfun(1:4)
# prints: [1]
2006 Feb 15
1
S3 generics without NS and cleanEx()
Good morning,
we recently observed a problem with importing S3 generics from a foreign
package (without namespace), defining a S3 method in a package _with_
namespace and the `cleanEx()' function which is automatically generated
and executed before examples are run by R CMD check.
To be more precise. Package `strucchange' defines a S3 generic
sctest <- function(x, ...)
2004 Sep 27
2
Getting code for functions
Hello
Pardon for the elementary question, I did try searching the archives
with various terms, but to no avail. I am using R1.9.1 on a windows
machine
One of the great advantages of R (to me, anyway) is being able to see
the code for a function , e.g. by typing sd one sees the code for
getting a standard deviation.
However, for many functions this only provides info. including
UseMethod, eg.
2005 Feb 11
3
getAnywhere and functions starting with "." (PR#7684)
Full_Name: Mark Bravington
Version: 2.0.1
OS: Windows XP
Submission from: (NULL) (140.79.22.104)
'getAnywhere' crashes when its argument starts with a period:
> getAnywhere( '.onLoad')
Error in exists(x, envir, mode, inherits) :
invalid first argument
One fix might be to replace the line
if ( !is.null(f <- getS3method(gen, cl, TRUE))) {
with
if ( nchar( gen)
2005 Jan 26
2
Source code for "extractAIC"?
Dear R users:
I am looking for the source code for the R function extractAIC. Type the
function name doesn't help:
> extractAIC
function (fit, scale, k = 2, ...)
UseMethod("extractAIC")
<environment: namespace:stats>
And when I search it in the R source code, the best I can find is in (R
source root)/library/stats/R/add.R:
extractAIC <- function(fit, scale, k = 2,
2007 Jul 17
1
data.restore() in R 2.5.1 for Windows 95 and later
To Whom It May Concern:
I want to read in an S-PLUS data dump and I used
> data.restore("filepath/filename")
(in R 2.5.1 for Windows 95 and later) and I get the message
Error: could not find function "data.restore"
I have also tried read.S() and read.dta() with the same result. I cannot find
any of these functions in the R Help for package base, although data.restore()
2004 Dec 16
2
reading svm function in e1071
Hi,
If I try to read the codes of functions in e1071 package, it gives me following error message.
>library(e1071)
> svm
function (x, ...)
UseMethod("svm")
<environment: namespace:e1071>
> predict.svm
Error: Object "predict.svm" not found
>
Can someone help me on this how to read the codes of the functions in the e1071 package?
Thanks.
Raj
2009 Apr 04
1
Extracting a function from a R package
Dear List,
I typed
> page(survival:::print.coxph, "print" )
and I got the respective codes.
> page(MASS::lda, "print")
gives me
###############################
function (x, ...)
UseMethod("lda")
<environment: namespace:MASS>
###############################
Is there any way I can get/extract the lda function from MASS?
Thanks for your attention.
>
2008 Dec 05
1
How to retrieve a method
Hi there,
I am interested in the inner workings of wilcox.test:
> wilcox.test
function (x, ...)
UseMethod("wilcox.test")
<environment: namespace:stats>
how can I get at the code, if it is R-code? For Methods one should be able to learn what extension to use, but here default or such do not help.
Is there a wayplot.default to learn which different versions of
2004 Jul 02
2
hclust
im using plclust and want the labels to be different colors.
i took a look at getS3method("plot","hclust")
and saw a call to .Internal. i looked at the help on .Internal and dont
know where to go next. any help appreciated!
thanks,
rafael
2019 Mar 23
4
topenv of emptyenv
I was surprised just now to find out that `topenv(emptyenv())` equals
? `.GlobalEnv`, not `emptyenv()`. From my understanding of the
description of `topenv`, it should walk up the chain of enclosing
environments (as if by calling `e = parent.env(e)` repeatedly; in
fact, that is almost exactly its implementation in envir.c) until it
hits a top level. However, `emptyenv()` has no enclosing