Hello,
in some R sessions, method dispatch for objects of the (S4) class “lavaan"
fail. An example from such a “bad” session:
> library(lavaan)
> HS.model <- ' visual =~ x1 + x2 + x3
+ textual =~ x4 + x5 + x6
+ speed =~ x7 + x8 + x9 '
> fit <- cfa(HS.model, data =
Please read the proto vignette before asking further questions about
it. It is an alternative to/version of OOP different from S3 and S4.
-- Bert
On Fri, Aug 9, 2013 at 8:13 AM, Simon Zehnder wrote:
> Hi Martin,
>
> is proto in S3?
>
> I will take a look first at the simple package EBImage.
>
>
Hi Martin,
is proto in S3?
I will take a look first at the simple package EBImage.
Thank you very much for the suggestions!
Best
Simon
On Aug 9, 2013, at 5:01 PM, Martin Morgan wrote:
> On 08/09/2013 07:45 AM, Bert Gunter wrote:
>> Simon:
>>
>> Have a look at the "proto" package for whi
On 08/09/2013 07:45 AM, Bert Gunter wrote:
Simon:
Have a look at the "proto" package for which there is a vignette. You
may find it suitable for your needs and less intimidating.
Won't help much with S4, though! Some answers here
http://stackoverflow.com/questions/5437238/which-packages-make-
Hi Bert,
thank you very much for your suggestion! I will take a look at it soon!
Best
Simon
On Aug 9, 2013, at 4:45 PM, Bert Gunter wrote:
> Simon:
>
> Have a look at the "proto" package for which there is a vignette. You
> may find it suitable for your needs and less intimidating.
>
> Chee
Simon:
Have a look at the "proto" package for which there is a vignette. You
may find it suitable for your needs and less intimidating.
Cheers,
Bert
On Fri, Aug 9, 2013 at 7:40 AM, Simon Zehnder wrote:
> Hi Martin,
>
> thank you very much for this profound answer! Your added design advice is
>
Hi Martin,
thank you very much for this profound answer! Your added design advice is very
helpful, too!
For the 'simple example': Sometimes I am still a little overwhelmed from a
certain setting in the code and my ideas how I want to handle a process. But I
learn from session to session. In f
On 08/04/2013 02:13 AM, Simon Zehnder wrote:
So, I found a solution: First in the "initialize" method of class C coerce
the C object into a B object. Then call the next method in the list with the
B class object. Now, in the "initialize" method of class B the object is a B
object and the respecti
So, I found a solution: First in the "initialize" method of class C coerce the
C object into a B object. Then call the next method in the list with the B
class object. Now, in the "initialize" method of class B the object is a B
object and the respective "generateSpec" method is called. Then, in
Dear R-Users and R-Devels,
I am struggling with the method dispatch for S4 objects. First I will give a
simple example to make clear what the general setting in my project is.
Three classes will be build in the example: A is just a simple class. B
contains A in a slot and C inherits from B. In
Thank you both for very helpful answers. I have indeed missed the help pages
about "(" and now the situation is more clear.
> You can use this syntax by defining a function `x<-` <- function(...) {}
> and it could be an S3 method, but it is a completely separate object from
> x.
Unfortunately
The details here are much more appropriate for R-devel, but please
check the help pages for "(" and "[", and note
- "[" is generic and "(" is not.
- the primitive `(` is used to implement constructions such as
(x <- pi) and not x(...).
The special handling of operators such as "[" is part of th
On 11-01-13 3:09 AM, Taras Zakharko wrote:
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
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, whi
method in "exportMethods". What did I miss here? Thanks a lot
> for your help.
>
>
>
> export(MackChainLadder, MunichChainLadder, BootChainLadder, MultiChainLadder)
> export(Join2Fits, JoinFitMse, Mse, residCov)
>
> importFrom(stats, quantile, predict, coef, vcov,
tFrom(stats, quantile, predict, coef, vcov,
residuals, fitted, fitted.values, rstandard)
importFrom(methods, show, coerce)
importFrom(graphics, plot)
#Classes
exportClasses(triangles, MultiChainLadder, MultiChainLadderFit,
MCLFit, GMCLFit, MultiChainLadderMse)
On 03/01/2010 01:31 PM, Zhang,Yanwei wrote:
> Dear all,
>
> In a package, I defined a method for "summary" using
setMethod(summary, signature="abc") for my class "abc", but when the
package is loaded, the function "summary(x)" where x is of class "abc"
seems to have called the default summary func
Dear all,
In a package, I defined a method for "summary" using setMethod(summary,
signature="abc") for my class "abc", but when the package is loaded, the
function "summary(x)" where x is of class "abc" seems to have called the
default summary function for "ANY" class. Shouldn't it call the met
How can I determine what S3 method will be called for a particular
first-argument class?
I was imagining something like functionDispatch('str','numeric') =>
utils:::str.default , but I can't find anything like this.
For that matter, I was wondering if anyone had written a version of
`methods` whi
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