similar to: method dispatch and in-place modification? - unclass, RemoveClass, getDataPart, method dispatch

R-Devel: When I get the data part of an S4 class that contains="data.frame", it gives me a list, even when the "data.frame" is the S4 version: > d<-data.frame(x=1:3) > isS4(d) [1] FALSE # of course > dS4<-new("data.frame",d) > isS4(dS4) [1] TRUE # ok > class(dS4) [1] "data.frame"

On Dec 19, 2015, at 3:32 AM, Martin Maechler <maechler at stat.math.ethz.ch> wrote: >>>>>> Martin Maechler <maechler at stat.math.ethz.ch> >>>>>> on Sat, 12 Dec 2015 10:32:51 +0100 writes: > >>>>>> John Chambers <jmc at r-project.org> >>>>>> on Fri, 11 Dec 2015 10:11:05 -0800 writes: >

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 Reference Class in a running R session and source the respective file containing the class

Hi all, in the help for RClassUtils I found the expression "privileged slots" in function "checkSlotAssignment" with the explanation: /privileged slots (those that can only be set by accesor functions defined along with the class itself)/ I thought all slots of a (not private) class can be a accessed by a user via the @ Operator. Is there a way to make a single slot of a

'?removeClass' shows that 'removeClass' is from package 'package:methods'. Is there a command which can show me all the functions and the classed defined in a package such as 'package:methods'?

Hello, all. I found that so many unnessary queue files are saved at /var/spool/clientmqueue/ directory. I tested two way to delete these files. 1. # rm -rf /var/spool/clientmqueue/* 2. # cd /var/spool/clientmqueue/ ; find . | xargs rm -fv But this makes a few load of the system and took too much time to delete. What is the best way to delete fast without too much load?

Hi, I get the following error when trying to remove a union class: > setClassUnion('a', c('matrix', 'numeric')) > removeClass('a') > sessionInfo() R version 2.15.3 (2013-03-01) Platform: i686-pc-linux-gnu (32-bit) locale: [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 [5] LC_MONETARY=en_US.UTF-8

Somehow, the most obvious fixes are always back-incompatible these days. The example intrigued me, so I looked into it a bit (should have been doing something else, but ....) You're right that this is the proverbial thin-edge-of-the-wedge. The problem is in setDataPart(), which will be called whenever a class extends one of the vector types. It does as(value, dataClass) The key point is

Hi Folks! I seem to be having a problem with alignDailySeries in Rmetrics: DTB6<-fredSeries("DTB6",frequency = "daily",from = "1980-01-01") trying URL ' http://research.stlouisfed.org/fred2/series/DTB6/downloaddata/DTB6.txt' Content type 'text/plain; charset=UTF-8' length 248392 bytes (242 Kb) opened URL downloaded 242 Kb Read 13060 items

Dear all, In R-devel I have noticed the new approach for the "ts" class in the package "methods". the "structure" behaviour of "ts" is not always kept when one uses "ts" objects and objects of classes which extend the virtual class "structure". As a short example: ## this works fine setClass("foo", representation(header =

>>>>> Martin Maechler <maechler at stat.math.ethz.ch> >>>>> on Sat, 12 Dec 2015 10:32:51 +0100 writes: >>>>> John Chambers <jmc at r-project.org> >>>>> on Fri, 11 Dec 2015 10:11:05 -0800 writes: >> Somehow, the most obvious fixes are always back-incompatible these days. >> The example intrigued

>>>>> Martin Maechler <maechler at stat.math.ethz.ch> >>>>> on Tue, 8 Dec 2015 15:25:21 +0100 writes: >>>>> John Chambers <jmc at r-project.org> >>>>> on Mon, 7 Dec 2015 16:05:59 -0800 writes: >> We do need an explicit method here, I think. >> The issue is that as() uses methods for the generic

Hi, I am trying to create a linked list in R by defining a class Node which has a instance variable Node. setClass("Node", representation(rate="numeric", nextNode="ANY")) The above works. But the following gives me a warning message. setClass("Node", representation(rate="numeric", nextNode="Node")) > >

Or maybe the "right" concept is that "numeric" is a virtual class with 3 subclasses: "complex", "double", and "integer". Anyway it's probably too late for implementing the "right" concept so it doesn't really matter. Thanks Martin for offering to fix the as(1L, "numeric") bug. Very much appreciated. I guess that means

I've rolled up R-2.4.1.tar.gz a short while ago. This is a maintenance release and fixes a number of mostly minor bugs. See the full list of changes below. You can get it (in a short while) from http://cran.r-project.org/src/base/R-2/R-2.4.1.tar.gz or wait for it to be mirrored at a CRAN site nearer to you. Binaries for various platforms will appear in due course. For the R Core

I've rolled up R-2.4.1.tar.gz a short while ago. This is a maintenance release and fixes a number of mostly minor bugs. See the full list of changes below. You can get it (in a short while) from http://cran.r-project.org/src/base/R-2/R-2.4.1.tar.gz or wait for it to be mirrored at a CRAN site nearer to you. Binaries for various platforms will appear in due course. For the R Core

>>>>> John Chambers <jmc at r-project.org> >>>>> on Fri, 11 Dec 2015 10:11:05 -0800 writes: > Somehow, the most obvious fixes are always back-incompatible these days. > The example intrigued me, so I looked into it a bit (should have been doing something else, but ....) > You're right that this is the proverbial

>>>>> Josh O'Brien <joshmobrien at gmail.com> >>>>> on Mon, 4 Jan 2016 16:16:51 -0800 writes: > On Dec 19, 2015, at 3:32 AM, Martin Maechler <maechler at stat.math.ethz.ch> wrote: >>>>>>> Martin Maechler <maechler at stat.math.ethz.ch> on >>>>>>> Sat, 12 Dec 2015 10:32:51 +0100

Hey, i am currently upgrading a Rails 2.1 app to 2.3 to benefit from Rails engines. The app requires rendering javascript updates to strings, which does not work with 2.3 anymore: data = ActionView::Base.new(Rails::Configuration.new.view_path).render(:update) do |page| page["div[id=''foo'']"].removeClass("bar") end whihc results in an error because the

--- On Sun, 13/2/11, Shing Hing Man <matmsh at yahoo.com> wrote: > From: Shing Hing Man <matmsh at yahoo.com> > Subject: Re: [R] Linked List in R > To: "Martin Morgan" <mtmorgan at fhcrc.org> > Date: Sunday, 13 February, 2011, 4:49 > Hi Martin, > ? Thanks for the pointer ! It seems quite involved to > create a > a linked list in the oo way. I