similar to: Is there a diferent way to do this?

Hi, I´m trying to write some R classes but I din´t find documentation enought to develop them. I read there is 2 ways to write classes, using S3 ou S4 models. And it seems that S4 is the best model, so I thing I should use this one. I´m new user of R and I´m searched on the net some information about creating new classes. I found this document:

Dear all, Assume that I have an S4 class "MyClass" with a slot "myname", which is initialized to: myname="" in method("initialize"): myclass <- new("MyClass", myname="") Assume that class "MyClass" has a method "mymethod": "mymethod.MyClass" <- function(object, myname=character(0), ...) {

Hi. I just started studing R language and I saw there is a package to develop user interface called tcltk. I read about it and I made some tests but I found it a little poor and slow.. I was thinking if is possible to write a user interface using java and ask to R to run all the maths I have and R returns all the results, including graphs. If someone has any suggestions to me I will appreciate,

Hi, there! I'm having kind this same problem https://stat.ethz.ch/pipermail/r-help/2008-October/178221.html but I want to display another plot of my data, which is a point with two arrows indicating confidence interval, in the same graph that I've just plotted another, but the "add=T" is not functioning, I'm getting the same error Warning messages: 1: In plot.window(...)

Hi llvm-dev, Our code base has a ancient copy of llvm (ver 3.5.1), and it uses the LLVM code gen for some domain-specific language. The previous dev left a global lock around the usage of LLVM code gen stating that because LLVM code gen can only be accessed single-threaded it needs to be protected with this global lock. But now this lock has caused some perf issues as we pretty much lose

Thank you Johannes, I looked it up and it seems that we're creating one LLVMContext per compilation "unit", not sure if that matters. i.e. there's no single globally shared LLVMContext object. Is LLVMContext *the* concurrency isolation (or unit) here? On Wed, Apr 3, 2019 at 6:34 PM Doerfert, Johannes <jdoerfert at anl.gov> wrote: > Do you use one llvm context or one

Memory leaks found by the tool--valgrind along with static reviewing. Based on Daivd''s branch ''integration-20130903''. Gui Hecheng (5): btrfs-progs:free local variable buf upon unsuccessful returns btrfs-progs:local variable memory freed btrfs-progs: missing tree-freeing statements added btrfs-progs:free the local list pending_list in btrfs_scan_one_dir

Hi the list, I try to use callNextMethod in a setteur ([<-) but it does not work. Any raison ? Any other option ? --- 8< ------------------ ### Class B0 ### setClass("B0" , representation(b0 = "numeric")) setReplaceMethod("[","B0",function(x,i,j,value){x at b0 <- -value}) a <- new("B0") a at b0 <- 3 a a["b0"] <- 3 a

Hi I have the code like I show below. The problem here is that I have a setReplacementMethod to set the value of my class slot. However, this function doesn't work when I call it within another function definition (declared by setMethod) of the same class. I do not understand this behavior that much. I'm wondering how to make this work? Any help would be really appreciated. Thank you.

Hi, I recognized that the function 'setReplaceMethod' is creating a character vector in the user workspace having the name (e.g. "newClass") of the class used as value. If you can sort out a mistake by myself, I would like you to file a bug report. BBFN, Jonathan setClass("newClass", representation(value="numeric")) setMethod(f = "initialize",

Hi, I recognized that the function 'setReplaceMethod' is creating a character vector in the user workspace having the name (e.g. "newClass") of the class used as value. If you can sort out a mistake by myself, I would like you to file a bug report. BBFN, Jonathan setClass("newClass", representation(value="numeric")) setMethod(f = "initialize",

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

Fixing one bug uncovers the next one... To reproduce: llvm-ar rc ./libgcc.a libgcc/./_muldi3.o <and-lots-more-.o-files...> The result: C:\msys\1.0\home\llvm_home\install\bin\llvm-ar.exe: Can't move './libgcc.a-000003' to './libgcc.a-000002': Cannot create a file when that file already exists. So apparently, we're trying to move one file on top of another. The

I can report that the computer renaming worked. As it turned out, only the cn was incorrect ... ldbsearch -H ldap://DC1 -UAdministrator 'CN=DT06' dn: CN=DT06,OU=Desktops,OU=Computers,DC=domain,DC=com objectClass: computer cn: DT06 operatingSystem: Windows 10 Pro displayName: WH23$ sAMAccountName: WH23$ ... so a simple LDAP rename worked ... ldbrename -H ldap://DC1 -UAdministrator

Hi, Seems that on RWin 1.7.0 and 1.6.2 isSeekable returns F on binary files, while seek() works as expected on the same connection - see example below: > con = file(nm, "rb") > isSeekable(con) [1] FALSE > readBin(con, double(), 10) [1] 7.263824e-317 5.968155e-317 2.340685e-317 2.734062e-312 4.088386e-312 4.670335e-317 [7] 6.097545e-317 3.396341e-312 6.615484e-317

Hi, I've looked all over for a solution to this, but haven't had much look in specifying what I want to do with appropriate search terms. Thus I'm turning to R-help. In the process of trying to write a simple function to rename individual column names in a data frame, I ran into the following problem: When I rename the columns within my function, I can't seem to get it to

Thank you for your replies. I greatly appreciate the wealth of documentation on this subject and the time spent by the John Chambers and the R Core Team making object-orient programming in R a reality. I hope to be able to give code (not just bug reports) back to the R community as my projects advance. I hoping to generalize my as.character question to a real-life as.character / print method

Hi, perhaps a little bit unusual: is it possible to use "<- " as generic function with a new signature? The following example doesn't work: > isGeneric("<-") [1] FALSE > setClass("A",representation(x = "numeric")) [1] "A" > setClass("B",representation(x = "numeric")) [1] "B" > myAssign.A <-

Yep, you found another bug. Unlike Unix, Windows does not allow a file to be implicitly replaced via renaming. I'll fix it. Greg Pettyjohn wrote: > Fixing one bug uncovers the next one... > > To reproduce: > llvm-ar rc ./libgcc.a libgcc/./_muldi3.o <and-lots-more-.o-files...> > > The result: > C:\msys\1.0\home\llvm_home\install\bin\llvm-ar.exe: Can't move

Folks, Per a post to StackOverflow, I'm looking for an opinion on whether something should be documented: When adding a named item to a list, its guaranteed that the item will be added to the end of the list. SO post: http://stackoverflow.com/questions/7599349/adding-named-item-to-list-guaranteed-to-append-to-end-of-list/7599610#7599610 This is my first email to r-devel, so I hope this is