similar to: attach()ing User-Defined Classes with Complex Structures

I noticed this oddity about [ and setMethod. First, I define testFunc, which sorts a data frame by the first column and returns the entries that aren't NAs, and testIt, which runs testFunc repeatedly on a random large data frame, each time saving the return into a dummy placeholder (for demonstration's sake). > require(methods) Loading required package: methods [1] TRUE > testFunc

I noticed this oddity about [ and setMethod. First, I define testFunc, which sorts a data frame by the first column and returns the entries that aren't NAs, and testIt, which runs testFunc repeatedly on a random large data frame, each time saving the return into a dummy placeholder (for demonstration's sake). > require(methods) Loading required package: methods [1] TRUE > testFunc

Full_Name: Colin A. Smith Version: 1.8.0 OS: Mac OS X 10.2.6 Submission from: (NULL) (216.102.90.18) Both Biobase and my package annaffy use S4 classes to define methods for "[". Both packages use the save image method of installation. (See annaffy 1.0.3 in BioC CVS.) Depending on how both packages are loaded, the Biobase definitions seem to be getting masked out: >

Hello, Thomas Stabla (statho3@web.de) has already sent this question to R-help, Wed, 12 Nov 2003 21:21:31 +0100, but we are not sure whether we should better post this mail to this audience than to R-help: --------------------------------------------------------------------- We are using S4-classes and want to force a validity check when an object is created. How can this be done, when an

I am another person who has had trouble documenting S4 classes and (particularly) methods. The methods package itself is pretty cool by the way, but it is a pity that there are as yet no guidelines on S4 in the "Writing R Extensions" document. I have actually put together a guide on S4 documentation myself for the use of my own lab which is at

# Your mailer is set to "none" (default on Windows), # hence we cannot send the bug report directly from R. # Please copy the bug report (after finishing it) to # your favorite email program and send it to # # r-bugs@r-project.org # ###################################################### > x <- rnorm(10) > y <- 1:10 > xyplot(y ~ x) >

Hi, I don't understand why this code doesn't work (f(b2)): ///////////////// setClass("B0", representation(b0 = "numeric")) setClass("B1", representation("B0", b1 = "character")) setClass("B2", representation("B1", b2 = "logical")) f <- function(x) class(x) setMethod("f", "B0",

Might it be an idea to make "?" a special operator akin to "+" or "[", R users could then write their own help functions - may be even making "?" generic? With the proposed xml help system one could imagine quite sophisticated context sensitive help systems. Regards, John Marsland PS this has been a very useful debate for those of us enthusiastically

1. I'm putting together my first package that uses S4 classes and objects. I'd like to document them, but I'm not sure what the documentation should look like, and package.skeleton doesn't produce any at all for the classes or methods. Are there any good examples to follow? 2. How do I do the equivalent of debug(foo), when foo is an anonymous function being used as a method?

> setClass('foo') [1] "foo" > setMethod('is.logical', 'foo', function(x) TRUE) [1] "is.logical" > getGeneric('is.integer') Error in options(x) : evaluation is nested too deeply: infinite recursion? > --please do not edit the information below-- Version: platform = i686-pc-linux-gnu arch = i686 os = linux-gnu system =

Hello, Before I consider purchasing it, can someone comment on the general applicability of John Chambers' book titled "Programming with Data" for R programming. I am currently using R-1.3.1 with the Omega SLanguage and RSMethod packages. Many thanks, Randall -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read

I'm seeing weird issues in methods initialization, i.e. loading marrayClasses loads Biobase, and when explicitly done, as in library(Biobase) library(marrayClasses) is fine, but when Biobase is loaded via a require statement in marrayClasses' .First.Lib, I end up with: Warning message: In the method signature for function "coerce", class "exprSet" has no

In ancient times, circa 1980, S data directories were called swork and sdata not .Data, and "New-S" as described in the already medieval "Blue Book" discusses a function DBCONVERT that converted swork data into .Data data. It is embarrassing to admit it, but I still have data archives from a BTL machine called alice in the swork format and would like to convert a dataset to

Hi, the following example aiming at a class containing a logical slot segfaults under R-1.9.0 when `gctorture(on = TRUE)' is used: Code code (dummy.c): #include <Rdefines.h> SEXP foo() { SEXP ans; PROTECT(ans = NEW_OBJECT(MAKE_CLASS("test"))); SET_SLOT(ans, install("lgl"), allocVector(LGLSXP, 1)); LOGICAL(GET_SLOT(ans,

I'm trying to create a package for working on orientation data, i.e. data where the observations are 3D rotations. There are several different representations of orientations in common use: SO(3) matrices, Euler angles, unit quaternions, etc. One thing I'd like is to make it convenient to work in any representation, and have conversions to others done as needed. I'm trying to do

Hi! Here a simple example. setClass("myclass" ,representation(info="character") ,contains="matrix" ) rownames(dd)<-c("a","b") tt<-new("myclass",dd) #the source of pain. as(tt,"matrix")<-matrix(1,3,3) Error: length of dimnames [1] not equal to array extent Is there a different way to do what I would like to do (I

Hi! Here a simple example. setClass("myclass" ,representation(info="character") ,contains="matrix" ) rownames(dd)<-c("a","b") tt<-new("myclass",dd) #the source of pain. as(tt,"matrix")<-matrix(1,3,3) Error: length of dimnames [1] not equal to array extent Is there a different way to do what I would like to do (I

Full_Name: Henrik Bengtsson Version: R v1.4.1 OS: WinMe Submission from: (NULL) (217.208.14.137) Doing the following library(methods) setGeneric("foo", function(x) standardGeneric("foo")) setMethod("foo", "ANY", function(x) cat(x)) fails with Error in while (value[n] == "ANY") n <- n - 1 : missing value where logical needed It

Full_Name: Colin A. Smith Version: 1.8.0 OS: Mac OS X 10.2.6 Submission from: (NULL) (128.102.184.81) annaffy 1.0.1 (in BioC CVS) fails to load. annaffy 1.0 (on the BioC web site) has the same problem. It looks like the load is failing because of a bug in completeSubclasses() in r-devel. It calls setIs() and doesn't specify an environment via the "where" argument. setIs()

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