similar to: setMethod("Summary")

Hi I am having difficulty with setMethod(). I have a "brob" class of objects whose representation has two slots: "x" and "positive". Slot "x" (double) holds the log of a number and slot "positive" (logical) its sign. The idea is that large numbers can be handled. I'm trying to implement a log() method using an analogue of the

Hello everybody R version 2.4.0 alpha (2006-09-15 r39323), MacOSX 10.4.7 Next S4 problem. I have "brob" objects that are large real numbers, and now I want "glub" numbers that are to be a pair of glubs that represent complex numbers. I want to define binary operator "+" so that if either the left or right argument are glubs, it uses .ArithGlub. If either

Hi In V&R the "polynomial" class is explicitly specified to have no logical operators: setMethod("Logic", signature(e1="polynomial"), function(e1,e2){stop ("...")}) I too have a class of objects for which I want to specify that Logic operators do not work, but executing setClass("brob", representation = representation

Hi If x <- 1:10 then x[5] <- 1i will promote x to be a complex vector. Suppose I have an S4 class "brob", and have functions is.brob(), as.brob(), as.numeric() and so forth (minimal self-contained code below). If x is numeric (1:10, say) and y is a brob, what is the best way to make x[5] <- y promote x to a brob in the same way as the complex example? Or is

Dear R-Gurus, I have ended up with a calculation problem where I need to use brobs. I have to work my way through a vector with a for loop to act on each element in a calculation (refering to the previous value in the new vector of results -- so as far as I know I can't use "apply") -- this produces a list of brobs. My problem is, how do I act on, plot this list, or do vector

Hi R version 2.4.0 alpha (2006-09-06 r39158) MacOSX 10.4.7 There was a thread some time ago as to whether the structure created by package.skeleton() would pass R CMD check. I have an example where package.skeleton() gives an R file that gives an error when sourced. If I type setClass("brob", representation = representation

Dear all, I am struggling to understand this. What happens when you raise a negative value to a power and the result is a very large number? B [1] 47.73092 > -51^B [1] -3.190824e+81 # seems fine # now this: > x <- seq(-51,-49,length=100) > x^B [1] NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN <snip> > is.numeric(x^B) [1] TRUE > is.real(x^B) [1]

I am getting the following error message while using the as.brob function in some computations: Error in out.x[ss] <- pmax(x1[ss], x2[ss]) + log1p(+exp(-abs(x1[ss] - : NAs are not allowed in subscripted assignments Is there any obvious mistake I am making here that can resolve the above error message? Thanks for your help. Chow -- View this message in context:

Hi I want a function that takes precisely one named argument and no unnamed arguments. The named argument must be one of "a" or "b". If "a" is supplied, return "a". If "b" is supplied, return 2*b. That is, the desired behaviour is: R> f(a=4) #return 4 R> f(b=33) #return 66 R> f(5) #error R> f(a=3,b=5) #error R>

Hi, I've been using the Matlab robustfit function for linear regressions where I suspect some data points are outliers. Is there an equivalent function in R? Take care, Darren PS, This is the Matlab help on robustfit: >> help robustfit ROBUSTFIT Robust linear regression B = ROBUSTFIT(X,Y) returns the vector B of regression coefficients, obtained by performing robust

Hello I've checked through previous postings but don't see a fully equivalent problem-just a few hints. I have been trying to set a new method for the existing function "table" or "as.data.frame.table" for my class "tfSites". Taking out all the useful code and just returning the input class I get the error setMethod("table",

Hello List. please find uploaded to CRAN a new package, Brobdingnag. This package does two things: (1) allows computation of very large numbers using a logarithmic representation. (2) provides a "Hello, World" example of S4 methods in use: there are two classes of object (brob and glub) and one virtual class (swift). The package includes a vignette that is a

Thanks I think you have both answered my question (reckon Ill go S3 on that). As an adjunct to this do you know what might be the best reference to the S4 methods current implementation. I have ordered the Chambers book "Programming with Data", and I have a short tutorial-- "S4 Classes in 15 pages, more or less". Have I missed any other useful resources? Stephen Henderson

Dear developers, We want to use "\S4method" to document new S4-methods for "[" and "[<-". We use this for other functions/methods and it works without any problem, but in case of "[" and "[<-" we didn't manage to bring this to work. The problem occurs in the development version of our package "distrSim" which can be found

Hi, I found the following on Windows 2000/NT R Version 1.9.1 (2004-06-21) (also Version 1.9.0): The S4 group "Math" doesn't work as documented; i.e., "log", "log10", "gamma" and "lgamma" are included in the documentation but don't work. See example code below. Moreover, what about 'genericForPrimitive' which is used in

Hello. I am trying to write an S4 method for rbind(). I have a class of objects called 'mdm', and I want to be able to rbind() them to one another. I do not want the method for rbind() to coerce anything to an mdm object. I want rbind(x1,x2,x1,x2) to work as expected [ie rbind() should take any number of arguments]. This is what I have so far: setGeneric(".rbind_pair",

Experts, We've just migrated from samba 2.2.8a to samba 3.0.20b in a very large corporate environment. Everything was really fine in our lab, but we began experiment serious load problems on the productive servers the morning after the procedure took place. I'll try (briefly) to describe the characteristics of the scenario: Resources: Old Environment: Hardware:

Hi, Recently I came across some IR produced by a frontend that had unnamed function arguments. For example something like this. ``` define i32 @foo(i32, i32, i32) #0 { %x = add i32 %1, %2 ret i32 %x } ``` I had never seen this before, so I took a look at the LLVM language reference manual and the section on functions [1] doesn't say anything about what "argument list" can be

Hi folks, we (the company i am working for) are running several dozens of virtualisation servers using CentOS 6 + Xen4CentOS as the virtualisation infrastructure. With the latest versions of all packages installed [1], we see failures in live-migration of stock-CentOS6 HVM guests, leaving a "Domain-unnamed" on the source host, while the migrated guest runs fine on the target host.

hello guys: I am in trouble with get the identifies of the unnamed temporaries from the instruction of LLVM IR. for example: instruction: %4 = mul nsw i32 %1, %width unnamed temporaries: %4, %1 how to get them? I have tried several iterators(op_iterator,value_op_iterator) and getOperand(int) function,but none of them works. does anyone know how to get it? thanks very much -- View this message