similar to: Size of a refClass instance

Greetings, I am trying to use Reference Class methods in Snowfall, using R 2.12.1 on Ubuntu Natty. Using then directly seems to work (stanza 2 below), but using them indirectly does not (stanza 3 below). I get an "attempt to apply non-function" error. In addition to exporting the instance of the object I created to the Snowfall slaves, I also made several attempts to export the

hi all i have a function that uses two inputs, say xdata and ydata. An example is the following, simple1<-function(xdata,ydata) { ofit<-lm(ydata~xdata) list(ofit) } say i use arbitray number for xdata and ydata such that D = x1 x2 y 1 1 10 2 6 6 3 10 7 x<-D[,1:2] and y<-D[,3] if one uses these inputs and rund the program we get the following: >simple(xdata=x,ydata=y)

Hi all, I've constructed the following function to test whether or not an object was created from a reference class: isRefClassObject <- function(x) isS4(x) && is.environment(attr(x,'.xData')) && exists('.refClassDef',attr(x,'.xData')) but I'm unsure if it's a complete test or if there's a better way to test. Regardless, It would be

I'd like to perform return variable assignments like matlab. For example, the following function would return A, B, and c to the script that called it. ================================= function [A,B,c] = simple(m,n) A=[ 3 2; 3 3] B=m c=1:n ================================= I'd like to do similar assignments in R, but I seem to be able to only return one variable. I tried to use a

Hi Gabe, On 09/29/2015 02:51 PM, Gabriel Becker wrote: > Herve, > > The problem then would be that for A a refClass whose fields take up N > bytes (in the sense that you mean), if we do > > B <- A > > A and B would look like the BOTH take up N bytes, for a total of 2N, > whereas AFAIK R would only be using ~ N + 2*56 bytes, right? Yes, but that's still a *much*

Hello, I am somewhat new to R programming and a novice C++ programmer. I'd like to know if I should use setRefClass() to manage objects, functions, and data in a very large program I am attempting to code. See: http://stat.ethz.ch/R-manual/R-devel/library/methods/html/refClass.html I like the referential class structure that C++ provides and R seems to provides via setRefClass(). Mainly

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

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:

Hi, does anyone know if it is possible to construct sets of S4 objects? It seems the constructor set does not like it: Error in as.vector(x, "character") : cannot coerce type 'environment' to vector of type 'character' Regards Johnny PS: by the way, does anyone know where I can find some examples using the cset class from the "sets" package, beside the

Hi, does anyone know if it is possible to construct sets of S4 objects? It seems the constructor set does not like it: Error in as.vector(x, "character") : cannot coerce type 'environment' to vector of type 'character' Regards Johnny [[alternative HTML version deleted]]

Hello Everyone! Here are a couple of thought/questions on refClasses integration in R core functionality. First, coexistence with S4: > X <- setRefClass("classX", fields = c("a", "b"), + representation = list(c = "character")) > x <- X$new() > x at c <- "sss" > x An object of class "classX"

Dear list, is there a shortcut-function to check whether a class is a Reference Class or not? There's something like this for S4 classes ('isS4(object)'), but I couldn't find anything regarding Ref Classes. Currently, I'm doing it this way, which is a bit clumsy: A <- setRefClass("A", fields=list(X="numeric")) a <- A$new() isRefClass <-

I was wondering: are the downstream dependencies of a package rebuilt when a package is updated on CRAN? (I'm referring to the binary packages, of course.) The reason I ask is because there are cases where this can cause problems. Suppose that when pkgB is built, it calls pkgA::makeClosure(), which returns a closure that refers to a function in pkgA. Suppose this code is in pkgA 1.0:

On Wed, Oct 9, 2013 at 5:22 PM, Manman Ren <manman.ren at gmail.com> wrote: > > > > On Wed, Oct 9, 2013 at 1:32 PM, Manman Ren <manman.ren at gmail.com> wrote: > >> >> David, >> >> Thanks for reviewing! >> >> On Wed, Oct 9, 2013 at 11:36 AM, David Blaikie <dblaikie at gmail.com>wrote: >> >>> Might be easier if

On Tue, Oct 15, 2013 at 10:05 AM, Manman Ren <manman.ren at gmail.com> wrote: > > > > On Wed, Oct 9, 2013 at 5:22 PM, Manman Ren <manman.ren at gmail.com> wrote: > >> >> >> >> On Wed, Oct 9, 2013 at 1:32 PM, Manman Ren <manman.ren at gmail.com> wrote: >> >>> >>> David, >>> >>> Thanks for reviewing!

This is a little off topic, but maybe someone can help. I have a Win2K laptop that's part of a corporate domain. When I bring it home and add it to my home LAN, it refuses to access any SMB machine (including a Samba server, Win98 or Win95 box) complaining that "There are currently no logon servers available to service the logon request." Is there any way to fix this easily? I

I'd like to write unicode strings using the "\u" escape syntax. According to the documentation, print.default or encodeString will escape unicode using the \u convention. In practice, I can't make it work. > b="Unicode character: \ufffd" > print.default(b) [1] "Unicode character: ?" > encodeString(b) [1] "Unicode character: ?" I want to

The first patch seems fine, though the comment on the modified addDIEEntry function is a bit confusing: -/// addDIEEntry - Add a DIE attribute data and value. +/// addDIEEntry - Add a DIE attribute data and value. The form should be +/// a reference form: ref1, ref2, ref4, ref8, ref_udata, ref_addr, +/// or ref_sig8. A form can be chosen inside addDIEEntry. When the comment says "The form

On Wed, Oct 9, 2013 at 1:32 PM, Manman Ren <manman.ren at gmail.com> wrote: > > David, > > Thanks for reviewing! > > On Wed, Oct 9, 2013 at 11:36 AM, David Blaikie <dblaikie at gmail.com> wrote: > >> Might be easier if these were on Phabricator, but here are some thoughts: >> >> 0001: >> This patch generally, while separated for

On Tue, Oct 15, 2013 at 10:10 AM, David Blaikie <dblaikie at gmail.com> wrote: > > > > On Tue, Oct 15, 2013 at 10:05 AM, Manman Ren <manman.ren at gmail.com> wrote: > >> >> >> >> On Wed, Oct 9, 2013 at 5:22 PM, Manman Ren <manman.ren at gmail.com> wrote: >> >>> >>> >>> >>> On Wed, Oct 9, 2013 at