similar to: dispatching on group generics with more than one formal

the code below has me confused: setClassUnion("index", c("numeric", "character", "logical")) extends("numeric") # i don't see the class union library(Matrix) extends("numeric") # now i see the class union i am aware that the "Matrix" package separately defines the "index" class union. is it the case that

i think these two code snippets exhibit a bug. they are identical but for the inclusion of an initial line in snippet [2] [1] setMethod("Math", signature(x = "numeric"), function(x) "Works") getGeneric("sqrt")(4) [2] getGeneric("sqrt")(4) setMethod("Math", signature(x = "numeric"), function(x) "Works")

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

i believe the following is true but would appreciate confirmation that it is intended behavior and will continue: if a default argument is employed in the definition of a generic function, and the generic is called with the argument in question (call it 'ARG') missing, then the method for signature (..., ARG = "missing", ...) will be called by 'standardGeneric'

Hi, There seems to be a problem with setGroupGeneric() from package 'methods'. The symptoms are somewhat erratic, in the sense that small changes may lead to any of the following behaviours. 1.Package works without problems on Windows and installs on Linux but gives error when loaded with library(). 2.Package installs on both systems and gives error when loaded on any of them. 3.

Hello. This question concerns the Methods package. I have created a new class and am trying to set a method for it for S4 group generic "Summary". I have run into some signature problems. An example: > setClass("track", representation(x="numeric", y="character")) [1] "track" > setGeneric("max", group="Summary")

self-sanity check prior to filing a bug report: attempted replacement that generates an error leaves a '*tmp*' variable in the global environment. test <- 1:10 test[2:4] <- expression(e) ls() i've read section 3.4.4 of the "R Language Definition" which discusses the mechanism for replacement, and it is not clear to me whether this was intended, but i suspect

Hi I used write() the other day to save some results. It seems that write() does not record the full precision of the objects being written: > write(pi,file="~/f",ncolumns=1) > pi.saved <- scan("~/f") Read 1 item > dput(pi) 3.14159265358979 > dput(pi.saved) 3.141593 > pi-pi.saved [1] -3.464102e-07 > This difficulty was particularly difficult to

Newbie trying to install wine in his Mac OSX, getting the old annoying message, home:~/Desktop/wine G3$ /Users/G3/Desktop/wine/tools/wineinstall WINE Installer v0.75 Running configure... configure: creating cache config.cache checking build system type... powerpc-apple-darwin8.7.0 checking host system type... powerpc-apple-darwin8.7.0 checking whether make sets $(MAKE)... no checking for gcc...

Hi I thought I'd pass one of my package through R CMD check with R-2.4.0 with the following result (it's clean under R-2.3.1): [snip] > > # histogram of the fourth power: > hist(out^4, col="gray") *** caught bus error *** address 0x12, cause 'invalid alignment' Traceback: 1: sort(x, partial = c(half, half + 1)) 2: sum(sort(x, partial = c(half, half +

Dear r-helpers, I downloaded http://popgen.unimaas.nl/~jlindsey/rcode/rmutil.tar (it was originally .tgz, but got unzipped by my browser). Can anyone give me detailed instructions on installing this and Lindsey's other packages on R version 2.4.0 (2006-10-03)---(powerpc- apple-darwin8.7.0, locale: C)? _____________________________ Professor Michael Kubovy University of Virginia

Hi there, I installed the rspec on rails plugin for a new project today and guess what -- it blows up! All by other rspec on rails projects are working fine. I updated all gems & still no joy. Any ideas how I can troubleshoot this one ? Here''s my setup: - ruby 1.8.4 (2005-12-24) [powerpc-darwin8.7.0] - Rails 1.2.5 Installed with svn: ruby script/plugin install

Hello all, I have loading problem with XML_1.9 under 64 bit R2.3.1, which I got from http://R.research.att.com/. XML_1.9 works fine under 32 bit R2.5.0. I thought that could be installation problem, and I tried install.packages or biocLite, every time the package installed fine, except some warning messages below: ld64 warning: in /usr/lib/libxml2.dylib, file does not contain requested

Dear R-helpers, I don't see a difference between the following two plots of effect objects, which I understand should be different. What am I missing? require(doBy) require(effects) data(budworm) m1 <- glm(ndead/20 ~ sex + log(dose), data=budworm, weight=ntotal, family=binomial) m1.eff <- all.effects(m1) plot(m1.eff, rescale.axis = FALSE, selection = 2, main = 'rescale =

Now that 1.5 is released, some changes have been committed to the r-devel version of the methods package. They are mostly bug fixes (or making things work more as users would expect) in two areas: 1. new classes that extend one of the basic datatypes that have attributes but had no class attribute in S3 (e.g., "matrix" or "ts"). The previous code didn't handle the

On the help page "DateTimeClasses {base}" it says: "One can add or subtract a number of seconds or a difftime object from a date-time object, but not add two date-time objects." However, > x<-Sys.time(); y<-Sys.time()+3600 > diff<-y-x > x; y; diff [1] "2005-11-23 19:58:20 GMT" [1] "2005-11-23 20:58:20 GMT" Time difference of 1 hours

Dear R-helpers, When I try > anova(txtE2.lme, txtE2.lme1) Model df AIC BIC logLik Test L.Ratio p-value txtE2.lme 1 10 8590 8638 -4285 txtE2.lme1 2 7 8591 8624 -4288 1 vs 2 6.79 0.0789 > latex(anova(txtE2.lme, txtE2.lme1)) Error: object "n.group" not found I don't even see n.group as one of the arguments of latex() I checked to see >

Hi everyone and thanks for being patient. I've used "!.foo"() et seq pro tem. Next problem: how to define "Summary" methods for brobs. ?max says 'max' and 'min' are generic functions: methods can be defined for them individually or via the 'Summary' group generic. For this to work properly, the arguments '...' should be

I have observed the following behavior, wondering if it is a bug before I submit a report. I am using the plot function with call: plot(X, Y, col="red", . . . ) where X is an object that inherits from classes 'dates' and 'times' (created with the 'dates' function from package 'chron') and y is a numeric vector. The color red is applied to the

Hello everyone I am finding complex numbers to be printed oddly in R-alpha. > 1e100+1e100i [1] 1e+100+1e+100i > 1e100 + 1e44i [1] 1e+100+100000000000000008821361405306422640701865984i > dput(1e100+1e44i) 1e+100+100000000000000008821361405306422640701865984i > [same thing at home on a linux box] The first line is what I would expect, the second and third lines aren't: I