Displaying 20 results from an estimated 40000 matches similar to: "Object oriented programming resources"
2012 May 15
1
Object-oriented programming (OOP)
Hello everybody, please excuse my bad English. I am Alfredo Naime and
I'm from to Venezuela.
I want to make a lib with tools for simulation (queues, inventories,
factory, etc.) using object-oriented programming (OOP).
You have any manuals on the handling of data types, classes,
inheritance, etc. in R with examples and how to make a R lib.
Thank you, very much.
Alfredo
2007 Dec 09
3
Oriented object programming
Hi all
Two questions:
- I would like to learn more on oriented object programming with R. Is
there any tutorial for that?
- Without waking up a troll, I am not very familiar with diffusion
list, I am more use to forum. On a diffusion list, how can I check if
someone already asks a question? I mean, I went on CRAN-R website, I
find the R mailing list archive. But is there a way to search
2008 Jul 27
4
Object-oriented programming in R for Java programmers?
Hi,
I was wondering if anybody might have a reference for
me: My R code is growing and getting more and more
confusing. Thus, I figure it's time to switch to
object-oriented again. I have done oo programming in
C++ and Java before but the first few tutorial on R oo
were a bit confusing for me.
Is there any brief tutorial on oo programming in R
especially for people who have done oo in Java
2009 May 27
2
Object-oriented programming in R
Dear R-users,
I have very recently started learning about object-oriented programming
in R. I am far from being an expert in programming, although I do have
an elementary C++ background.
Please take a look at these lines of code.
> some.data = data.frame(V1 = 1:5, V2 = 6:10) ;
> p.plot = ggplot(data=some.data,aes(x=V1, y=V2)) ;
> class(p.plot) ;
> [1] "ggplot"
My
2004 Aug 14
2
Private methods
Hi,
I'm trying to understand R's object oriented abilities.
I have read (in a very recent email to r-help) that R's methods package
does not support private methods. However, I also looked at the source
for the function "is":
> is
function (object, class2)
{
cl <- .class1(object)
if (missing(class2))
return(extends(cl))
if (.identC(cl, class2)
2005 Apr 21
3
Objects in R
Hi,
A few comments from a fairly experienced R user who
worked for several years on a R-based bioinformatics
analysis framework.
I don't want to misrepresent anyone's views, but...
There are real disadvantages to the
"objects-as-C-structs" and functions/methods which
"mutate" based on argument type. i.e. S4.
(1)Novices simply don't understand it.
2018 Sep 03
1
Moving from Structured to Object Oriented
Dear Devels,
I am not aware whether this topic was discussed earlier or not.
But it was on my mind from quite few days so ..
Are we planning for movement of samba from C to C++ or other OOP language.
If not why, reasons of yes I find quite a few...
* C++ is a highly portabl/e/ language and is often the language of
choice for multi-device, multi-platform app development.
* C++ is an
2010 Sep 14
2
Object oriented programming in R.
Hello everyone.
I would like to create many objects with R. Does R support objects?
The number of objects needed is not predetermined and it is a parameter
specified by the user.
If the user selects to create many objects like 100, would it be possible to
handle each one by some index?
I would like to thank you in advance for your help.
Best Regards
Alex
[[alternative HTML version
2004 Aug 12
4
truly object oriented programming in R
Good morning! I recently implemented a KD tree in JAVA for faster
kernel density estimation (part of the code follows). It went well. To
hook it with R, however, has proved more difficult. My question is: is
it possible to implement the algorithm in R? My impression seems to
indicate no as the code requires a complete class-object framework that
R does not support. But is there an R package or
2010 Jul 27
2
Documenting different OO-aproaches in R as a package?
Hello,
I see some people including myself confused by the different object-oriented
approaches in R (S3, S4, OOP, R.oo etc.).
Would it be ok to collect examples and solutions for the different OO-packages
in one package and add a vignette for documentation?
(assuming I find time for this task)
I mean in this case the package would not add data or functionality to R or
serve as a companion
2007 Jan 19
5
C vs. C++ as learning and development tool for R
I have 3 years of experience with R and have an interest in becoming a
better programmer so that I might someday be able to contribute
packages. Other than R, my only experience was taking Lisp from Daniel
Friedman in the 1970's. I would like to learn either C or C++ for
several reasons:
To gain a better concept of object oriented programming so that I can
begin to use S4 methods in R.
To
2023 Feb 18
1
Adding support for S7 to base R
On 18/02/2023 9:51 a.m., Duncan Murdoch wrote:
> One more comment:
>
> The utils::setBreakpoint() function should be updated to be able to set
> breakpoints in S7 methods, or a substitute function should be added to
> the S7 package.
>
> RStudio 2022.12.0+353 (not sure if that's the latest) also needs to be
> taught how to do that, since it doesn't seem to use
2011 Oct 26
1
Object-oriented PHP implementation is coming, looking for parties
Hello, list.
My name is Max, I'm a web developer.
I found Markdown convention very useful, I use it everywhere nowadays.
Michel Fortin's markdown-php seems to be the only available PHP implementation.
And, judging by number of people using it, it works well :)
But there is many thing that's keep it from being perfect:
* One large file with functions not being sorted in a logical
2019 Oct 21
3
S4SXP type vs S4 object bit?
I'm trying to understand the R internals a bit better and reading over the
documentation.
I see that there is a bit related to whether an object is S4
(S4_OBJECT_MASK), and also the object type S4SXP (25). The documentation
makes clear that these two things aren't the same.
But in practice, will the S4-bit and object type ever disagree for S4
objects? I know that one can set the bit
2007 Aug 17
3
Any parser generator / code assistance for R?
Hi,
Is there any parser generator like www.antlr.org? Moreover, how does simple
code assistance work currently in R? By 'simple code assistance' I meant
things like:
Object$M<TAB> --> Object$Method
2002 Mar 19
1
Question re:S4 classes and design; clashing classes?
Thanks to Duncan's recent work on SJava, I've got a (so far) stable
platform to put together the R-Orca interface (dynamic graphics,
including brushing, subseting, etc). While the first version will be
looking at installation issues and study basic user interfaces for providing a
few working examples, it will be important for this particular package to look at how one integrates a
2003 Apr 07
2
Is it possible to have data stuctures like in C ?
I'am a very fresh R user and I'd like to know how I could create such
structures.
I saw R was objects-oriented but I can not find any doccumentation on
about how to build my hown ojects.
Thanks.
2009 Jun 02
1
S4 Objects [Sec=Unclassified]
I am new to R programming but have dived into a medium sized modelling software development project.
Having come from a Java OO background I have a couple of questions about S4 objects.
Is there a way to make S4 slots (and methods) private and hence force the use of accessor methods?
Is there a straight-forward way to implement pass-by-reference for method parameters?
I am currently
2013 Feb 02
1
Choice of text for intermediate level R programming course
The Subject line mostly says it. I'm designing it as a semester-long, 3
hours per week, course
that takes in students who got the basics of R in stats classes, but don't
really know how to
program in it. Translation: if their own examples don't look enough like
examples from
previous work, they're stumped.
Does anybody have a text for an intermediate R course (but not too
2005 Apr 26
2
C++ <-> R mapping
Following my previous post and the intuitive adivces of Duncan Murdoch, I
would like to ask some questions regarding C++ to R mapping.
Initially, it appeared to me that in order to perform this mapping, the
existing object-oriented design of R would be a good choice. This could
include both the S3 and S4 classes approaches. However, there were replies
about some 'other' approaches. I