similar to: Recent setClass fails where previous succeeded

Hi, I recently ran into this problem. I couldn't find any mention of it in the setClass documentation. setClass("Foo", representation(file = "character")) setMethod("initialize", "Foo", function(.Object, file) { print(file) }) setClass("Bar", contains = "Foo") And the error: Error in print(file) : argument "file" is

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I am painfully aware that this is most likely a problem with my system, but I am nevertheless going to ask if anyone has any ideas/suggestions for diagnosis and trouble-shooting. - From a clean checkout of release 66624 on Ubuntu 12.04 (32-bit, sorry!): gcc (Ubuntu/Linaro 4.6.4-1ubuntu1~12.04) 4.6.4 svn checkout https://svn.r-project.org/R/trunk/

Hi, This works fine. >setClass("a",representation(b="list",c="list")) >new("a",b=list(7)) >An object of class "a" Slot "b": [[1]] [1] 7 Slot "c": list() But, now suppose you want a slot to accept an object of class formula... >setClass("a",representation(b="list",c="formula"))

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

Hi - I tried to get some answer before but there seems to have no one response. My question is that I have a class like below definition: setClass("DBManager", representation(channel="RODBC")) My purpose of the conn slot is to hold a channel to database connection which is returned by a command like: channel <- odbcConnect("DB", uid="user",

Hi R People: I have a question about setClass please. I'm working thru "R Programming for Bioinformatics". Actually, I was wondering if there is such a thing as an updateClass, in order to change a "contains" option, please? that is, if I had setClass("dog", representation(name="character",paws="numeric",tail="character")) Fair

Hello ... With a new checkout of R-devel (last update was 2003-09-11) we are having a problem (it seems to be happening to all of us here on a few different machines) where during install/check/etc when the 'save image' happens (in packages using 'save image'): ** save image Error: couldn't find function "setClass" Execution halted This is for all packages that

I have a few questions and thoughts regarding class versioning and serialized S4 class instances. How is the version argument to setClass is intended to work? It appears to want an externalptr, but that seems odd to me. setClass("FOO", representation(x="numeric"), version="1.2.3") Error in validObject(.Object) : invalid class

the following returns an error in an 'exists' call on my machine MyEnv <- new.env() setClass("Numeric", "numeric", where=MyEnv) franklin parlamis > version _ platform powerpc-apple-darwin8.7.0 arch powerpc os darwin8.7.0 system powerpc, darwin8.7.0 status beta major 2 minor 4.0 year

An embedded message was scrubbed... From: David James <daj025 at gmail.com> Subject: Re: [R] setClass with a slot of RODBC Date: Sat, 02 Jun 2007 10:32:47 -0400 Size: 4053 Url: https://stat.ethz.ch/pipermail/r-devel/attachments/20070603/f3583feb/attachment.mht

Dear UseRs, A simple class inheritance example: > setClass("test",representation(a="numeric")) > setMethod("initialize","test", function(.Object,x,...){ print("Initialization!!!") callNextMethod(.Object,a=x,...) }) > new("test",x=23) [1] "Initialization!!!" An

Hi,   I'm reading up on S4 classes *). There seem to be at least two ways of input validation: setClass() (using the 'validity' argument)  and setValidity(). Is it a matter of taste which function is used? Or should more complex validation code better be put in a setValiditity call? *) A (Not So) Short Introduction to S4 Object Oriented Programming in R V0.5.1 Christophe Genolini

Greetings, I am creating a standalone executable script using Rscript and have run into problems when I define a new S4 class. Here is a small script that demonstrates my problem: #!/usr/bin/env Rscript # # toy.Rscript -- testing S4 class creation in an Rscript setClass("toy", representation(name = "character", price = "numeric"),

Hi all, I have a self written likelihood as a model and functions to optimize and get fitted values, confidence intervals ect. I wonder if there is a way to define a 'class', or a 'model' (or a certain object)? so that I can use 'summary' to produce a summary like it does for a lm object. Also, it should be able to use 'predict' and 'plot' and other

Hello, Below is what I got running the examples from `setClass'. Could somebody please help explain why the last `setIs' call is returning the warning and whether this is expected? R> setClass("track", + representation(x="numeric", y="numeric")) [1] "track" R> setClass("trackCurve", +

I was installing the 'diffobj' package into TERR and got an error from the call StyleSummary <- setClass("StyleSummary", slots=c(container="ANY", body="ANY", map="ANY"), prototype=list( container=function(x) sprintf("\n%s\n", paste0(x, collapse="")), body=identity, detail=function(x) sprintf("\n%s\n",

Dear all, I have been trying to create an R package. This has been successfull until I tried to define classes. Currently, my procedure is the following: Start R, load the function and class definition >tmp <- function (x) {x} >setClass("rpa", contains = "list", where=topenv(parent.frame())) Use package skeleton to create directory structure:

To R-Developers: I wish to report what I believe are inconsistencies between Green Book descriptions and R methods behaviors. I **realize** that R does not guarantee total consistency with the Green Book; therefore I leave it to you to decide whether any of this is a bug, design choice, or a need for additional documentation -- or whether I have simply misread or overlooked existing explanations.

I would like to add a class to the SparseM package. I have a class "matrix.csr" that describes a matrix in compressed sparse row format, now I would like a class matrix.diag.csr that describes such objects when they happen to be diagonal. The idea is that matrix.diag.csr objects should behave (later in life) exactly like matrix.csr objects, the distinction is only needed in order to

Hello, I would like to create a function that gets passed a class name and then calls setClass, and a few other functions, inside. I have done this in the past with setmethod, creating accessors for all slots in a set of S4 classes. But setClass is choking when my function is called isnide a package, telling about an error in exists(cname, where). I assume this to be a problem with the