similar to: EXTERNAL: Re: subset with aggregate key

I'm running R 2.11.1 on 64 bit Debian. I've had no problem installing any other CRAN packages, but installing package "gbm" fails due to: *** installing help indices ** building package indices ... ** testing if installed package can be loaded Error : .onAttach failed in attachNamespace() for 'gbm', details: call: NULL error: 'packageVersion' is not an

I am using a variant of stopifnot a lot. can I suggest that base R extends its functionality? I know how to do this for myself. this is a suggestion for beginners and students. I don't think it would break anything. first, I think it would be more useful if it had an optional character string, so users could write stopifnot( is.matrix(m), "m is not a matrix" ) this would

Hi, I received a bug report from a French user who told me there was something wrong with the function packageVersion(), but packageDescription() worked well. Below is the session info; I'm not sure if other French users can reproduce the error message: > packageVersion('base') Erreur : sp?cification de version incorrecte base > sessionInfo() R version 2.12.1 (2010-12-16)

Not desperately important, but nice to have and possibly of use to others, is the ability to suppress specific warnings rather than suppressing warnings indiscriminately. I often know of a specific warning that I want to ignore (because I know that's it's a false positive/ignorable), but the current design of suppressWarnings() forces me to ignore *any* warnings coming from the

I apologize in advance for not having done more homework in advance, but thought I would send this along to see if anyone else was seeing this. I am having some sort of ggplot2/plyr/very-recent-R-devel dependency issues. Just installed R Under development (unstable) (2014-09-01 r66509) -- "Unsuffered Consequences" from source. > packageVersion("ggplot2") [1]

hello, if i load the RSQLite package in addition to the RPostgreSQL package, i get various errors when trying to use RPostgreSQL functions. here is an example transcript showing one such error: ========================================================== R version 2.15.0 (2012-03-30) [...] > packageVersion('RPostgreSQL') [1] 0.3.2 > packageVersion('RSQLite') [1] 0.11.1

Hi, I've added R_init_data_table to the "data.table" package (which has a dot in its name). This works well in R 2.15.0, because of this from the Writing R Extensions manual : " Note that there are some implicit restrictions on this mechanism as the basename of the DLL needs to be both a valid file name and valid as part of a C entry point (e.g. it cannot contain ?.?): for

>>>>> "VW" == Viechtbauer Wolfgang (STAT) <Wolfgang.Viechtbauer at STAT.unimaas.nl> >>>>> on Fri, 26 Sep 2008 18:00:19 +0200 writes: VW> Hi all, I'm trying to fit a marginal (longitudinal) VW> model with an exponential serial correlation function to VW> the Orange tree data set. However, R crashes frequently VW>

hi. i've looked for (and not found) an assert() function. needing one, i created the following (from stop()). i'm posting it in case 1) someone sees a problem with this; and 2) someone else has a need. cheers, Greg ---- ## an assert mechanism... assert <- function (shouldbe, ...) { if (!shouldbe) { .Internal(stop(as.logical(TRUE),

CRAN, by relying on the powerful package management system that is part of R, provides an unparalleled framework for extending R with nearly 20k packages. We recently encountered an issue that highlights a missing element in the otherwise outstanding package management system. So we would like to start a discussion about enhancing its feature set. As shown below, a mechanism to force

Hi i need use these 2 librarys? ( vctrs ) and ( ggplot2 ) , and the 2 librarys are installed in my Rstudio? RStudio Version 1.2.5033 ? 2009-2019 RStudio, Inc. "Orange Blossom" (330255dd, 2019-12-04) but i got all times thesse messages....please help-me...thanks lot of > library ( vctrs ) Error: package or namespace load failed for ?vctrs? in loadNamespace(i, c(lib.loc, .libPaths()),

Dear R experts, I would really appreciate if you had an idea on how to use more efficiently the aggregate method: More specifically, I would like to calculate the mean of certain values on a data frame,? grouped by various attributes, and then create a new column in the data frame that will have the corresponding mean for every row. I attach part of my code: matchMean <-

I am getting the error message: > library(Rcmdr) Loading required package: car Loading required package: MASS Loading required package: nnet Error : .onAttach failed in attachNamespace() for 'Rcmdr', details: call: structure(.External("dotTclObjv", objv, PACKAGE = "tcltk"), class = "tclObj") error: [tcl] invalid command name "image".

Hi, Found in the man page for update.packages: repos: character vector, the base URL(s) of the repositories to use, i.e., the URL of the CRAN master such as ?"http://cran.r-project.org"? or its Statlib mirror, ?"http://lib.stat.cmu.edu/R/CRAN"?.Can be ?NULL? to install from local files (?.tar.gz? for source packages). - Using

the error msg is: > local({pkg <- select.list(sort(.packages(all.available = TRUE))) + if(nchar(pkg)) library(pkg, character.only=TRUE)}) Error in if (RWinEdtVersion) RWinEdtVersion <- scan(file.path(InstallRoot, : argument is of length zero Error: .onAttach failed in 'attachNamespace' Error: package/namespace load failed for 'RWinEdt' > version _

Dear friends, I have install the last version 2.10 and now I have probles with 'mgcv' which can be load. I proved to eliminated and reinstalled but always obtain the same message: > library (mgcv) This is mgcv 1.6-1. For overview type `help("mgcv-package")'. Error in runif(1) : .Random.seed is not an integer vector but of type 'list' Error : .onAttach non

Hi ,When I try to load the 'mgcv" package, often, but not always, get this error message. What am I doing wrong? __________________ This is mgcv 1.4-1.1 Error in runif(1) : .Random.seed is not an integer vector but of type 'list' Error : .onAttach failed in 'attachNamespace' Error: package/namespace load failed for 'mgcv' -----------------------------------------

I'm having difficulty installing RWinEdt in WinEdt6. I receive the following message: Error : .onAttach failed in attachNamespace() for 'RWinEdt', details: call: getWinEdt() error: WinEdt is not installed properly. I have tried following the manual instructions in the readme.txt without success. I receive the following message: WinEdt's Initialization File "C:\Program

I've made a small enhancement to R that would help developers better control what versions of code we're using where. Basically, to load a package in R, one currently does: library(whateverPackage) and with the enhancement, you can ensure that you're getting at least version X of the package: library(whateverPackage, version=3.14) Reasons one might

Dear Colleagues, When I try to install Rcmdr the following happens: ---------------------------------- > library(Rcmdr) Error in structure(.External("dotTclObjv", objv, PACKAGE = "tcltk"), class = "tclObj") : [tcl] invalid command name "font". Error : .onAttach failed in 'attachNamespace' Error: package/namespace load failed for