similar to: Call super methods from inherited classes R.oo

If someone is able, can you tell me if there is a better way to do this? More specifically, do I have to rewrite all of the data members stuff and extend stuff of parent class in the child class? See below. Thanks in advance! Example 1: setConstructorS3("ClassA", function(A,x) { if(missing(A))A=15; if(missing(x))x=NA; extend(Object(), "ClassA", .size = A, .x=x

Hi to all members, i have a question about class inheritance and methods using R.oo package: I have the following code and it doesn't work, guess i'm doing smth wrong and there is nothing in the help. library(R.oo) setConstructorS3("ClassA", function(A=15) { extend(Object(), "ClassA", .size = A ); }) setMethodS3("print", "ClassA",

Hello (Heinrich), I did not know I could do this. It doesn't seem to be documented anywhere. Thought this would be helpful to the fraction of the community using package R.oo. Note the call of a setMethodS3 method, xOne, in the setConstructorS3. This is extremely useful if xOne (in this case) is a very complex method (that you always want to be called every time you create a new object). If I

On Tue, Jul 7, 2009 at 1:42 AM, David Minor<dahvid.minor at gmail.com> wrote: > Hi Eli, > Let's say I have a file ClassA.h, that pairs with a file ClassA.cpp > to product a library libClassA.a. > ClassA.h contains the single declaration. > > class A {...}; > > I want to transform it to: > > #include "ClassB.h" > > class A : public class B

Hi Eli, Let's say I have a file ClassA.h, that pairs with a file ClassA.cpp to product a library libClassA.a. ClassA.h contains the single declaration. class A {...}; I want to transform it to: #include "ClassB.h" class A : public class B {...}; ClassB.h is the header file for a library libClassB.a built from ClassB.cpp and ClassB.h. I can clearly link libClassB with libClassA.

I see, Adding includes is trivial even w/o llvm, but the real problem here is manipulation of classes, if I understand you correctly adding an inheritee wouldn't be possible. David On Tue, Jul 7, 2009 at 12:43 PM, Eli Friedman <eli.friedman at gmail.com>wrote: > On Tue, Jul 7, 2009 at 1:42 AM, David Minor<dahvid.minor at gmail.com> wrote: > > Hi Eli, > > Let's

Where should the setClass() ('methods' package) calls be placed in a package? I try to follow a one-class-one-file principe, but since setClass("ClassA", "ClassB") has to come a after setClass("ClassB", [snip]) it is not possible to fully follow this rule. So the best I can do now is to put all setClass() calls in a file named "000.R" (I know this

Hello, How do I inherit two classes using the R.oo package. Below is kind of a silly example, but I am trying to create class PerDog from classes Dog and Person. Error at bottom. I've tried a few other ways of using extend(), but nothing seems to get me what I want. Example: setConstructorS3("Person", function(age=NA) { this = extend(Object(), "Person", .age=age )

Hello, I noticed (due to a recent post by Martin Honnen to clp) that Element.Class uses wrong regexps for its operations. E.g., Element.Class.has() will find "classA" in "classA-foobar" I also changed the interface of .has() to the more general one used in .has_any() --- util.js.old 2005-08-21 19:18:40.000000000 +0200 +++ util.js 2005-08-21 19:31:42.000000000 +0200 @@

I thought I would post an example of using R.oo with inheritance and pass by reference for future searches. With PerMore I am inheriting Person. Then I am changing an object data memeber of an object of PerMore class using pass by reference ('mimiced' by R.oo) in an object of AgeMultiplier. I change a data member in the child class and the parent class for demonstration purposes. This is

Hi, have got anybody experience or a starting point for me, how i can program a function which calculate me a probability transition matrix with a data.frame and two states. I have some independend variable and a class variable for two states - in example one from Jan2003 and the same variables from June2003. Now i would like to calculate the probability that PERSON X change from classA to

Dear All, In a project I've been working on we've been using Reference Classes and grid extensively. However, something that I have come across is that when using the import() method on refclass objects, it does not work as expected with grid grobs and viewports. I have prepared test cases that illustrate the point but the general idea is that importing appears to work fine for

Hi, I have been trying to get information from the initializers of a C++ class. For example if I have something like this: classA { }; classB :public A { float f; public: B(A& a) : A(a), f(3.14159) { } }; I wold like to get the initialization values for each member. In this example the values a and 3.14159 for the members A and f respectively. What I have done so far is

Hello, I'd like to 'do work' on data members upon construction (i.e. without implementing it in a get method). Is this the best way to create data member 'z' upon construction? I'm thinking if .z=paste(x,y) below gets more complex I'll run into issues. setConstructorS3("MyClass", function(x=NA,y=NA,...) { this <- extend(Object(), "MyClass",

Hi, I''m running Puppet 0.23.0 on my servers, and i got something like this: In a classa.pp file (included in site.pp): class A { file { "test1": ... } } In a classb.pp file (included in site.pp): class B { file { "test2": ... } if defined(File["test1"]) { ... do things ... } if

Dear R.oo package users, while testing some functionality of the R.oo, I found that during the first construction of a object from a class, the constructor is twice called, but only one object is finalized. In all subsequent creation processes, the constructor is (expectedly) called once. Here some example code: library(R.oo) setConstructorS3("Test_class",function(val) {

I would like to use R.oo and tcltk to implement a Turtle World. I have encountered many problems because: 1) I am not sure how to implement static fields with R.oo 2) I am not sure how to implement a constructor that would call a function only for the first instance of a class (i.e., to initialize value of static fields only once) 3) I am not sure how to remove/delete cleanly existing

Hi, I've got a long-running project whose data fits nicely into data.frame objects in R. As I accumulate more and more functions, I decided to switch to an OO approach so I can organize things better. Looking around at the various approaches to OO R, I came across R.oo, which seems nice. Where I'm currently stuck is getting my objects to be mutable. For example, in the following toy

I'd like to suggest that whenever there is no S3 method implementation available for a particular class, that the error message would also report the class structure of the object dispatched on. Example: foo <- function(...) UseMethod("foo") foo.ClassA <- function(object, ...) { cat("foo() for ClassA called.\n") } > foo(structure(1, class="ClassA"))

On Sun, Jul 5, 2009 at 1:16 PM, David Minor<dahvid.minor at gmail.com> wrote: > I'm writing a code transformation that involves adding an include to > existing code, adding a base class > to and existing class and then linking with a previously compiled library. > The main problem for me > seems to be how can I add the include?  Can I compile the include alone to > byte