similar to: Simple class with an automatic printing issue

Displaying 20 results from an estimated 10000 matches similar to: "Simple class with an automatic printing issue"

2011 Feb 03
2
Creating a reference class object from a class definition in a package fails
Hi, I'm trying to create a package that contains reference class definitions from which users can create reference objects, but there seems to be something awry. My toy example creates an empty package via package.skeleton('TestClass') to which I add the following R code: TestClass <- setRefClass('TestClass',fields=c('name')) Unfortunately my R console output
2010 Oct 28
2
Reference Classes: Generalizing Reference Class Generator objects?
Is it possible to override the $new(...) in the reference class generator? I have tried adding a "new" method to the methods of the class, but that is obviously not correct. I have also tried adding it to the class generator, but the class generator still uses the default constructor. As a simple example, this is the current interface: TestClass <- setRefClass
2012 May 03
1
deparse(substitute(x)) on an object with S3 class
Dear list, can someone explain to me why deparse(substitute(x)) does not seem to work when x is of a user-defined S3 class? In my actual problem, my print method is part of a package, and the method is registered in the NAMESPACE, if that should make a difference. > print.testclass <- function(x,...){ xname <- deparse(substitute(x)) cat("Your object name
2013 Oct 16
1
Internally accessing ref class methods with .self$x is different from .self[['x']]
When a reference class method is accessed with .self$x, it has different behavior from .self[['x']]. The former copies the function to the object's environment (with some attributes attached), and the latter just return NULL (unless it has already been accessed once with .self$x). Is this how it's supposed to work? Here's an example that illustrates:
2011 Jun 08
1
Reference Class error message: may be caused by lazy evaluation?
Dear All, I came across an error message recently when constructing a reference class, an example is attached below, it looks like only if I call a specific method in advance, otherwise it cannot be found in defined method without using .self, this make it difficulty that sometimes in my initialize method, I need to call other method defined in the same reference class, the workaround for this is
2012 Dec 12
1
Lost in S4 and S3 classes
Hi all, this is my first post in R devel? sorry if I lost some of the guidelines. Anyway this is my problem: Version: R version 2.15.2 (2012-10-26) Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit) I want to make an S4 class that use the output object of the function of nls.lm as a slot: setOldClass("nls.lm") setClass ( Class="TestClass",
2010 May 12
1
slot assignment in S4 classes
Hi R friends,   I'm still studying S4 classes and I have a question about slot assignment. Why would I have to use a special setter method [example 2 below] if I can assign data to a slot directly when I call new() [example 1 below]?   ## first way to do it (the idiosyncratic way?) setClass(Class = "TestClass", representation = representation(myDf = "data.frame"))
2007 Apr 04
0
[LLVMdev] For a small help
Hi Ferad, On Wed, 2007-04-04 at 19:48 +0200, Ferad Zyulkyarov wrote: > Hi, > > I want to ask for a small help for creating an instruction that calls > e member method of an object. I suppose that this is not a headache > but I am impatient in learning :) I would be very thankful if you can > show me an example snippet code that does this in LLVM. Below is > described my
2009 Sep 15
2
S3 objects in S4 slots
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
2012 Aug 23
1
[LLVMdev] Error: "Recursive compilation" when run lli
I edit two files named test.h,test.cpp as follow: ///////////////test.h////////////////////////////////////////////////////////////////class TestClass { private: int fTotal; public: TestClass(); ~TestClass(); };///////////test.cpp/////////////////////////////////////////////////////////////////////////////#include "test.h" TestClass::TestClass() { fTotal = 2; }
2007 Apr 04
4
[LLVMdev] For a small help
Hi, I want to ask for a small help for creating an instruction that calls e member method of an object. I suppose that this is not a headache but I am impatient in learning :) I would be very thankful if you can show me an example snippet code that does this in LLVM. Below is described my case. Let's say I have a class TestClass class TestClass { int testMethod(int a); } and I want to
2007 Apr 04
0
[LLVMdev] For a small help
Ferad Zyulkyarov wrote: > Hi, > > I want to ask for a small help for creating an instruction that calls > e member method of an object. I suppose that this is not a headache > but I am impatient in learning :) I would be very thankful if you can > show me an example snippet code that does this in LLVM. Below is > described my case. > > Let's say I have a class
2007 Apr 05
2
[LLVMdev] For a small help
On 4 Apr 2007, at 20:10, Jeff Cohen wrote: > […] > %obj = alloca %struct.TestClass, align 1 ; <%struct.TestClass*> > [#uses=1] > %tmp1 = call int %_ZN9TestClass10testMethodEi( %struct.TestClass* % > obj, int 1 ) ; <int> [#uses=0] > ret void > } > > declare int %_ZN9TestClass10testMethodEi(%struct.TestClass*, int) The name mangling is not very pretty
2012 Feb 02
1
possibly Error in R version 2.12.1 (2010-12-16)
Hi, the following Code demonstrates an possibly Error in R (or you can explain me, why this happens, thanks in advance) Code: ##################################### testClass <- function( stackData= c()) { list( write= function( ...) { sChain= "" for( s in c( stackData, ...)) { sChain= paste( sChain, '"', sub( '"',
2010 Dec 08
2
S4 "["-method called twice - why?
Dear list, When playing around with the "[" method for S4 classes I noticed that it gets called twice in my example. setClass("testClass", representation(a="character")) setMethod("[", signature(x = "testClass", i = "ANY", j="ANY"), function (x, i, j, ..., drop){ print("void function")
2007 Apr 05
0
[LLVMdev] For a small help
Luc Bourhis wrote: > On 4 Apr 2007, at 20:10, Jeff Cohen wrote: > > >> […] >> %obj = alloca %struct.TestClass, align 1 ; <%struct.TestClass*> >> [#uses=1] >> %tmp1 = call int %_ZN9TestClass10testMethodEi( %struct.TestClass* % >> obj, int 1 ) ; <int> [#uses=0] >> ret void >> } >> >> declare int
2017 Mar 22
2
Package selectr: issue with the apt-get version, but not with the one installed from R?
Hi I am facing an issue with the package selectr, where I get an error trying to run an example code: css_to_xpath(".testclass"), gives could not find function "xpath_class" The issue arises however only with the package installed with apt-get, not when installed from within R. I got a similar issue with maptools, where I was not able to use data(wrld_map), and switching to
2011 Jan 13
2
Method dispatch for function call operator?
Dear R gurus, I am trying to create a nicer API interface for some R modules I have written. Here, I heavily rely on S3 method dispatch mechanics and makeActiveBinding() function I have discovered that I apparently can't dispatch on function call operator (). While .Primitive("(") exists, which leads me to believe that things like x(...) are internally translated to
2012 Feb 22
3
Error 400 on SERVER: Cannot append, variable node_data is defined in this scope at
Hi, I have an problem that I can''t get resolved. I have an hash like www.krzywanski.net/archives/703. With this hash i whould like the add some extra hashes before passing to the module, i have tryed the code below. node testnode { class { ''testclass'': nodes_data => { ''node1'' => { ''server'' =>
2011 Jul 29
2
How can I make before/after all a method?
I would like to turn this: describe TestClass do before :all do # set some config end after :all do # restore some config end # do a bunch of tests to this end into describe TestClass do with_config_value(X) # do a bunch of tests to this end Basically, I want to include before :all and after :all clauses into a test. However, I do not want this to apply toa ll tests. Thanks in advance.