similar to: overwriting '<-' and infinite recursions

https://bugs.r-project.org/bugzilla3/show_bug.cgi?id=16660 Here is the bug, which R.home may generate a path contains a whitespace. this will cause Rcpp failed executing sourceCpp > sourceCpp("b:/2018-12-14/src/18020/MCMC.cpp") Error in system(cmd, intern = !showOutput) : 'D:/Program' not found Error in system(cmd, ignore.stderr = TRUE, intern = TRUE) :

Dear all, My apologies for re-posting this question, but I have not found any solution to my problem so far. I also think that my post may have been overseen due to the posting time and high traffic on this list. I experience a problem in implementing a S4 class in a package and would appreciate your help in this matter. The class is implemented using Rcpp, which works well. I then extend

I am running into a limitation of the grid::grid.newpage function, for which I would like to overwrite this function with a slightly modified one. Hopefully this is a temporary working solution until the package gets updated. I found a way to overwrite the function in the package:grid namespace. However, lattice imports grid rather than depending on it. So I need a way to overwrite this imported

[forgot to copy to R-help so re-sending] ---------- Forwarded message ---------- Date: Thu, 21 Mar 2024 11:41:52 +0000 From: luke-tierney at uiowa.edu To: Duncan Murdoch <murdoch.duncan at gmail.com> Subject: Re: [External] Re: [R] Building Packages. At least on my installed version (which tells me it is out of date) they appear to just be modifying the "package:utils" parent

Hi the list When two setGeneric occurs on the same function, the second erage the first and erase all the function previously define. Is it possible to prevent that ? Is it possible to declare a setGeneric that can not be erased later ? Something like the |sealed for setMethod...| || |Thanks| || Christophe

If you are wondering why RStudio did this, you can see their substitute function using (parent.env(environment(install.packages)))$hook They appear to do these things: - Allow package installation to be disabled. - Check if a package to be installed is already loaded, so that RStudio can restart R for the install. - Add Rtools to the PATH if necessary. - Trigger an event to say

Dear all, I experience a problem in implementing a S4 class in a package and would appreciate your help in this matter. The class is implemented using Rcpp, which works well. I then extend the class with R functions, adding them as methods with a call to setMethod(...). When I do this outside the package (after loading the package with "library(...)"), everything works smoothly.

Hi everyone, I want to modify two base R functions 'parse' and 'deparse' immediately after R has started, so I added some code in the file 'Rprofile.site' under the 'etc' directory. Here is a simple example: parse=function(...){ base::parse(...) } I'll get an error when I start R as follows: Error: cannot change value of locked binding for

Hello, assignInNamespace refuses to assign an object to a name that is not already used in the namespace. Something like this would make it possible: --- src/library/utils/R/objects.R (revision 56024) +++ src/library/utils/R/objects.R (working copy) @@ -252,8 +252,9 @@ stop("environment specified is not a package") ns <- asNamespace(substring(nm, 9L))

Really old subject?, so, all my apologizes for digging up but, since I also ran into this? maybe this hack can be useful to someone I propose monkey patching here: library(ff) my.as.ffdf.data.frame <- function (x, vmode = NULL, col_args = list(), ...) { rnam <- attr(x, "row.names") if (is.integer(rnam)) { if (all(rnam == seq_along(rnam))) rnam <- NULL else

Hi all. I'm for the first time trying to make a library in R 2.8.1 on Ubuntu Linux. The library is very simple, R functions just need to share a variable (that is defined in the R code) and maybe functions and export functions for the user to .GlobalEnv. This variable should only be directly accessible from the global workspace (without change of environment) via a hereto dedicated function.

Dear developeRs, I have a package, pls, that implements package options. The users are supposed to use a function pls.options() to manipulate them. If a user changes the options, they are stored in .GlobalEnv. I was recently informed that this is against current CRAN submission policies, so I need to change that. I have looked at several different packages that implement package options, and

In my .Rprofile for Windows, I had the following functions defined to mirror a few features I miss from linux: (a) replace setwd() with a version that stashes the current directory so it can be easily restored (b) writes a short version of the current R directory to the Windows title bar: I can always see where I am, with multiple Rgui windows. (c) creates a cd() shorthand for setwd(), but

Hi, all, Does R have a "const object" concept like which is in C++ language? I want to set some data frames as constant to avoid being modified unintentionally. Thanks! xiagao1982 2011-03-15 [[alternative HTML version deleted]]

Hello, I'm trying to make .DollarNames generic and implement a method for it in a package. .DollarNames is the function that is now called to get completion possibilities. My R code looks like this: setGeneric( ".DollarNames" ) setClass("track", representation(x="numeric", y="numeric")) ## A class extending the previous, adding one more

Hi, I want to create an alias for the "<-" function and then later overwrite it. Any idea how I can get the "<-" function object? I know for other functions it's easy, something like "f <- seq" will do; how really no clue for this one. Thanks!

I am trying to get a function written in R that calls a cascade of functions from the graphics package, and I want to eventually call replacements to functions in the graphics package instead of the originals. Specifically, I have a function that calls qqnorm in stats, which calls qqnorm.default in stats, which calls plot in graphics, which calls plot.default and plot.new, and I want my own

Hello, I wrote a class like so: > rcfdpsuperclass <- setRefClass( > Class="rcfdpsuperclass", > fields = list( > RcfpdVersion = "character"), > methods = list( > initialize = function(){ > 'Populates fields with defaults and lock as appropriate' > initFields( > RcfpdVersion =

Hi all, The function call series genericForPrimitive -> .findBasicFuns -> .findAll happens 4400 times while the GenomicRanges package is loading. Each time .findAll follows a chain of environments to determine that the methods namespace is the only one that holds a variable called .BasicFunsList. This accounts for ~10% of package loading time. I'm sure there is some history to that

I wonder if it was possible (and desireable) to implement means to protect data objects (and functions) from overwriting them. So for instance: > x <- 5 > protect(x) > x <- 8 Error: x is read only Or would that be against the philosophy of R to be compatible to S?! Just a RFC ;-) Yours, Christoph. ps. Your probably know the situations that let you think of such a feature