similar to: an unpleasant interaction of environments and generic functions

Dear all, My apologies for re-posting this question, but I have not found any solution to my problem so far. I also think that my post may have been overseen due to the posting time and high traffic on this list. I experience a problem in implementing a S4 class in a package and would appreciate your help in this matter. The class is implemented using Rcpp, which works well. I then extend

I tried the following (relevant excerpt only) setMethod("likelihood", signature(spec="Specification", covs="vector", states="vector"), function(spec, covs, states) { #### setMethod("likelihood", signature(model="Model", path="matrix"), function(model, path) { This

Dear all, I am trying to write a package using formal methods and classes from the methods package. I have not been able to get the package to pass rcmd check without warnings, because rcmd check does not recognize my generic functions as code objects and therefore queries why they have documentation entries. I have isolated the problem in a very small trivial example which I give below. I

I've attached a script I wrote that pulls all the setGeneric definitions out of a set of R files and puts them in a separate file, default allGenerics.R. I thought it might help others who find themselves in a similar situation. The "situation" was that I had to change the order in which files in my package were parsed; the scheme in which the generic definition is in the

I have classes A and B, where B contains A. In the implementation of the group generic for B I would like to use the corresponding group generic for A. Is there a way to do that? I would also appreciate any comments if what I'm trying to do seems like the wrong approach. Here's a stripped down example: setClass("A",

Full_Name: Ross Boylan Version: 2.10.0 OS: Windows XP Submission from: (NULL) (198.144.201.14) Some of the help for setGeneric seems to have been garbled. In the section "Basic Use", 5th paragraph (where the example counts as a single line 3rd paragraph) it says <quote> Note that calling 'setGeneric()' in this form is not strictly necessary before calling

Originally I made a function yearStop that took an argument "object". I made a generic, but later changed the argument to "x". R keeps resurrecting the old definition. Could anyone explain what is going on, or how to fix it? Note particularly the end of the transcript below: I remove the generic, verify that the symbol is undefined, make a new function, and then make a

I have a small S4 class for which I've written a page grouping many of the accessors and replacement functions together. I would be interested in people comments on the approach I've taken. The code has a couple of decisions for which I could imagine alternatives. First, even simple get/set operations on class elements are wrapped in functions. I suppose I could just use myinstance at

Dear useRs, it's quite difficult for me to find `Error:'s in my R code, because R does say about error itself, but say nothing about its location, say, string number and file with an error (which may be `source'd from another file). Are there any option for turning of the similar feature, or R can not do such a thing at all? Thanks. -- WBR, Timur.

I haven't found much on S4 class redefinition; the little I've seen indicates the following is to be expected: 1. setClass("foo", ....) 2. create objects of class foo. 3. execute the same setClass("foo", ...) again (source the same file). 4. objects from step 2 are now NULL. Is that the expected behavior (I ran under R 2.7.1)? Assuming it is, it's kind of

If I have a class Foo, then i can write an S3 method for sum for it: >setClass("Foo",representation(a="integer"));aFoo=new("Foo",a=c(1:3,NA)) >sum.Foo <- function(x,na.rm){print(x);print(na.rm);sum(x at a,na.rm=na.rm)} >sum(aFoo) But how do I write an S4 method for this? All my attempts to do so have foundered. For example

Dear list, I'm trying to write a class for Gaussian error propagation of measured values and their (estimated) errors, > setClass("sec", representation(val="numeric", err="numeric")) I've already successfully implemented basic arithmetics using mostly the "Arith" group generics. But I'm running into trouble when trying to get signif() to

I've had repeated problems with promptClass missing methods, usually telling me a class has no methods when it does. In my current case, I've defined an S4 class "mspathCoefficients" with a print method setMethod("print", signature(x="mspathCoefficients"), function(x, ...) { # etc The file promptClass creates has no methods in it. >

I defined an S4 class with a slot i. Then I wrote a regular function that attempted to increment i. This didn't work, apparently because of the general rule that a function can't change the values of its arguments outside the function. I gather there are ways around it, but the Green book admonishes "cheating on the S evaluation model is to be avoided" (p. 190). Thinking that

I have been trying to write a new class that reimplements the vector class. As a test of my overloading I decided to try and and call t.test on two vectors which were objects of my class rather than the default class. The overloaded length I wrote seems to work correctly. I used setMethod("length", "myvector", ...) setMethod("mean", "myvector", ...)

Good summer, all! This patch enables ENABLE_SHARED=1 to build DLL based LLVM toolchain. I have checked this on Cygwin-1.5, Cygwin-1.7, mingw(msysgit) and mingw-cross-fedora12. I can separate this patch into some parts; cleanups, adding definitions and adding rules. Any feedbacks are welcome. Have fun! ...Takumi * Pros - reduction of linking time of toolchain. - capability of -load

Late to the show on this release, unfortunately. One of our production packages no longer builds under R-2.15.0 with the following message. ** testing if installed package can be loaded Error: Function found when exporting methods from the namespace 'SuperCurve' which is not S4 generic: 'image' Possibly relevant clues follow: ## From R/AllGenerics.R if

Fascinating. Or, well, not. Failing to use a method signature that is compatible with the generic is a no-no. So your bug seems to me to be outside the bounds of how R is supposed to be used. So don't do that. On April 17, 2024 4:25:38 PM PDT, "Boylan, Ross via R-help" <r-help at r-project.org> wrote: >When a generic (S4) has an argument with a default followed by ...,

Hello, I am a total beginner with ?R? and found a package ?venn? to create a venn diagram. The problem is, I cannot create the vectors required for the diagram. The manual say: "R> venn(accession, libname, main = "All samples") where accession was a vector containing the codes identifying the RNA sequences, and libname was a vector containing the codes identifying the

pkgA's NAMESPACE has importFrom(graphics, plot) exportClasses("A") exportMethods("plot") R/foo.R has setClass("A") setMethod("plot", "A", function(x, y, ...) {}) During R CMD INSTALL pkgA_1.0.tar.gz we are told ** preparing package for lazy loading Creating a generic function for 'plot' from package