similar to: @ accesses attributes, not just formal slots ?

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

Hello, I am the maintainer of the stringkernels package and have come across a problem with using S3 objects in my S4 classes. Specifically, I have an S4 class with a slot that takes a text corpus as a list of character vectors. tm (version 0.5) saves corpora as lists with a class attribute of c("VCorpus", "Corpus", "list"). I don't actually need the

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")

please see the code below. foo2 fails to dispatch correctly, but foo does fine. i have tried 'cacheMetaData(1)' and a number of different variants of 'cacheGenericsMetaData', on the possibility there is a caching issue. but i still can't sort it out. also one general question: does it really matter what's in the body of the function definition in a

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

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

Hi, I'm wondering if the following behaviour is normal: setClass('A', representation(number='numeric'), validity=function(object){ if( object at number < -1 ) return("Invalid number"); TRUE}) >[1] "A" a <- new('A') a >An object of class ?A? >Slot "number": >numeric(0) a at number <- 0 a at number <- -3 a >An

Hi there, I'm not certain if this is the correct list where to post this question, or if it ought to be on the R developper one... I am trying to use the RGoogleDocs package to import into R the spreadsheets on my Google docs account. I downloaded the latest package (0.2.0) and installed it. I can get a connection going, but it seems that I can only get a doc one... Here is the code I am

Hello everybody, I'm studying descriptive statistics with R and I want to know how to calculate the asymmetry and kurtosis coefficients of a sample using R. I'll appreciate some help. Thanx, Talita Perciano Costa Leite Graduanda em Ci?ncia da Computa??o Universidade Federal de Alagoas - UFAL Departamento de Tecnologia da Informa??o - TCI Constru??o de Conhecimento por Agrupamento de

Hello everyone, The particular motivation for this e-mail is my desire for feedback on how to fix PR17758; but there is a core design issue here, so I'd like a wide audience. The underlying issue is that, because the semantics of llvm.sqrt are purposefully defined to be different from libm sqrt (unlike all of the other llvm.<libm function> intrinsics) (*), and because autovectorization

Hi all, Does anyone have an R implementation of the queplot (K.?M. Goldberg and B.?Iglewicz. Bivariate extensions of the boxplot. Technometrics, 34(3):pp. 307?320, 1992)? I'm struggling with the estimation of the asymmetry parameters. Hadley -- Assistant Professor / Dobelman Family Junior Chair Department of Statistics / Rice University http://had.co.nz/

Hi Hal, all. I'm not sure why llvm.sqrt is 'special'. Maybe because there is a SSE packed sqrt instruction (SQRTPS) but not e.g. a packed sin instruction AFAIK. As mentioned in a recent mail to this list, I would like llvm.sqrt to be defined as NaN for argument x < 0. I believe this would bring it more into line with the other intrinsics, and with the libm result, which is

Hi If I have a <- Inf + 1i then Re(a) is Inf, and Im(a) is 1, as expected. But if b <- 1 + Inf * 1i, then Im(b) = Inf , as expected, but Re(b) = NaN, which I didn't expect. Why this asymmetry? How to define an object with Re(b)=1, Im(b)=Inf? -- Robin Hankin Uncertainty Analyst Southampton Oceanography Centre European Way, Southampton SO14 3ZH, UK tel 023-8059-7743

Hello everybody, I need your help about the package SN and the skew student distribution. Il will be very grateful if I have the solution. I construct a stochastic model with a white noise not gaussian but following a skew student distribution. I fit the noise on monthly data to obtain the four parameters. The question is : how to annualize the parameters to use my model for simulate daily data

On May 7, 2012, at 8:07 AM, Lyu Mitnick <mitnick.lyu at gmail.com> wrote: > Hello all, > > I am willing to do "eliminating the void type" project. Is this really a good idea? I'm not going to argue at length about it, but it is worth thinking about. The only practical downsides of void are when newcomers take C's syntax for functions with no arguments a little

I am having a bit of a struggle deciding when to use attributes with S4 objects. Clearly the 'class' attribute will always be present. But it is not clear to me whether the architects of the methods package intend that other attributes, such as 'names', will still be used when the S4 implementation is complete. I notice that, when you create a formal object from an

Hi Stepan, This looks interesting! Some high-level comments: - Please post the patch untarred next time. Also, I'm not sure if it's typical to provide supporting documents in .doc format; while many of us probably have access to Word, a more portable and email-friendly format (like text, markdown or rst) is probably better. - Have you profiled this? What's the speedup? I

Open Letter to Developers, Is there any way you can cut through the mob scene at Homeland Defense with a powerful new encryption/decryption formula? The government cryptography bunch are stuck in symmetry and asymmetry and are deaf/dumb/blind to supersymmetry. When it's so easy to line up a supersymmetrical hypercube fractal-to-fractal, pair-to-pair, quantum-to-quantum and slice through

Hi all, I propose simple improvement for MergeFunctions pass, that reduced its complexity from O(N^2) to O(log(N)), where N is number of functions in module. The idea, is to replace the result of comparison from "bool" to "-1,0,1". In another words: define order relation on functions set. To be sure, that functions could be comparable that way, we have to prove that order

Hi all, I am having trouble extending S4 classes in cases where I'm using both validity and initialize methods. I've read as much S4 information as I can find, but I've yet to have that "a-ha" moment. In my application, I am using validity methods to guard against inappropriate input data that my code has no way of handling, and initialize methods to detect and deal