Re: [Rd] Adding support for S7 to base R

I don't know if this is the right forum, but I'd like to ask an open-ended question about the goals of the S7 OOP system, which is, where do we see the ultimate future of object-oriented programming in R being? Do we see S7 eventually complementing S3 and S4 in "base" (in quotes because S4 is provi

Re: [Rd] Using R to wrap NREL's SSC library

ailman/listinfo/r-package-devel. > > On Tue, 09 Nov 2021 16:19:13 + > Ezra Tucker wrote: > > > PKG_LIBS=-L/opt/SAM/2020.11.29/linux_64 > > There's no good answer, but search "Writing R Extensions" for "rpath" > for potential ways of solving th

[Rd] Using R to wrap NREL's SSC library

Hi all, I'm attempting to write a package that wraps a pre-compiled library which is part of the SAM application, put out by NREL, available here: https://sam.nrel.gov/download.html or the source for the library only, available here: https://github.com/nrel/ssc For a variety of reasons, I'd rather

Re: [Rd] Unexpected behavior with inheritance and using S3 classes as slots in S4 class

t; n(s1 = b_1) > > An object of class "n" > > Slot "s1": > > [1] "world" > > attr(,"class") > > [1] "b" "a" > > Cheers, > > Simon > > > On Jan 28, 2021, at 15:55, Ezra Tucker e...@landt

[Rd] Unexpected behavior with inheritance and using S3 classes as slots in S4 class

Hi all, I have a situation where I'm trying to use S3 classes as slots in an S4 class and am running into some problems with inheritance. My example: ## with S3 classes a <- function(x) structure(x, class = "a") b <- function(x) structure(x, class = c("b", "a")) setOldClass(c("a", "b")) a_1 <-

Re: [Rd] Possible Regression in setClassUnion between 3.5.0 and 3.6.0

Hi Robert, This looks like a bug to me (tested in R 3.6.2 on Windows), f(new("a")) should return "hi!". I'll add that this DOES work properly in 3.6.1 which leads me to suspect this could be due to the subtle change in the way method dispatch was performed to fix a different bug, in 3.6.2. Can

Re: [Rd] Get memory address of an R data frame

Hi Lille, Is it possible you're looking for tracemem() or inspect() ? > x <- data.frame(z = 1:10)> tracemem(x)[1] "<0x55aa743e0bc0>" > x[1] <- 2Ltracemem[0x55aa743e0bc0 -> 0x55aa778f6ad0]: tracemem[0x55aa778f6ad0 -> 0x55aa778f6868]: [<-.data.frame [<- tracemem[0x55aa778f6868 -> 0x55aa778f5b48]:

[Rd] Troubles using numeric in s4 class union

Hi all, I came across an issue in using the Matrix package which made it that I could only subset Matrices using the numeric class, but could not using integers. Steps to reproduce the problem: library(Matrix) # this class has *nothing* to do with Matrix setClass("MyClass", representation(my