similar to: Depending/Importing data only packages

Dear all, ggplot currently requires 13 packages (grid, reshape, RColorBrewer, proto, splines, MASS, Hmisc, boot, butler, hexbin, mapproj, quantreg, sm). Some of these are absolutely necessary (eg. proto), but most are used for one or two specific tasks (eg. boot is only used to get plogis, used for logit scales). Do you think I should make them all "depends" packages, or

Hi all, I'm struggling with accessing a package dataset (munsell.map, stored in sysdata.rda) when that package is imported, not required. A simple reproducible example is: install.packages("munsell") munsell::mnsl("10B 4/6") # Error in match(col, munsell.map$name) : object 'munsell.map' not found library(munsell) munsell::mnsl("10B 4/6") # Function

Hi all, Does anyone have any suggestions for debugging the execution of examples by R CMD check? The examples work fine when I run them from a live R prompt, but I get errors when they are run by R CMD check. Thanks, Hadley -- Assistant Professor / Dobelman Family Junior Chair Department of Statistics / Rice University http://had.co.nz/

Hello, I'm currently working on making Rcpp use the feature described here more: http://cran.r-project.org/doc/manuals/R-exts.html#Linking-to-native-routines-in-other-packages To give more context, Rcpp has for a long time built what we called "the Rcpp user library", i.e. a library we could link against user the linker. We were then producing appropriate linker flag with

Dear R team, Are suggested dependencies mandatory in context of `R CMD check` when using env var `_R_CHECK_FORCE_SUGGESTS_=FALSE`? Suggested dependencies are nice because are optional. But that feature often isn't valid when trying to run `R CMD check` on them. I would like to use `export _R_CHECK_FORCE_SUGGESTS_=FALSE`, which according to the comment in `tools/R/check.R`: > The

Hi all, If a package suggests another package in its description, you can check it at runtime with requires. How do you do check if a package is available without loading it, if you only want to access one function in the package namespace. Thanks, Hadley -- Assistant Professor / Dobelman Family Junior Chair Department of Statistics / Rice University http://had.co.nz/

Dear R-developers, I've noticed over the past few weeks there have been a number of spurious bug report which seem to cause a lot of extra work. I thought maybe a small redesign of the bug submit form might help reduce these and save someone some time, so I've had a go and attached a prototype. Main changes: * Removed everything extraneous to submitting bugs * Highlighted important

Can any one provide more details on this error that I'm getting from R CMD check: * checking whether the name space can be loaded with stated dependencies ... WARNING Error in eval(expr, envir, enclos) : could not find function "proto" Error: unable to load R code in package 'ggplot2' Execution halted A namespace must be able to be loaded with just the base namespace

Hi all, all.equal is generally very useful when you want to find the differences between two objects. It breaks down however, when you have two long strings to compare: > all.equal(a, b) [1] "1 string mismatch" Does any one know of any good text diffing tools implemented in R? Thanks, Hadley -- Assistant Professor / Dobelman Family Junior Chair Department of Statistics / Rice

What do you prefer/recommend for double-banger function names: 1 scale.colour 2 scale_colour 3 scaleColour 1 is more R-like, but conflicts with S3. 2 is a modern version of number 1, but not many packages use it. Number 3 is more java-like. (I like number 2 best) Any suggestions? Thanks, Hadley

Hi all, I frequently find that I've failed to export something in my NAMESPACE and hence my package doesn't work when it's imported into another package. Does anyone have suggestion for debugging this type of problem? R CMD check passes without any ns related errors on both the importee and the importer. I've attached a reproducible example - if you install the development

On 4 April 2016 at 07:25, Hadley Wickham wrote: | On Sat, Apr 2, 2016 at 5:33 AM, Jan G?recki <J.Gorecki at wit.edu.pl> wrote: | | In principle, I believe a package should pass R CMD check if no | suggested packages are installed. However, since this is not currently The relevant manual says The 'Suggests' field uses the same syntax as 'Depends' and lists packages

Hi all, Would someone mind pointing to me to the inspiration for the use of the L suffix to mean "integer"? This is obviously hard to google for, and the R language definition (https://cran.r-project.org/doc/manuals/r-release/R-lang.html#Constants) is silent. Hadley -- http://hadley.nz

Hi all, Is there a better to way to subset the ROWs (in the sense of NROW) of an vector, matrix, data frame or array than this? subset_ROW <- function(x, i) { nd <- length(dim(x)) if (nd <= 1L) { x[i] } else { dims <- rep(list(quote(expr = )), nd - 1L) do.call(`[`, c(list(quote(x), quote(i)), dims, list(drop = FALSE))) } } subset_ROW(1:10, 4:6) #> [1] 4 5 6

Hi all, Is there any chance that readRDS and saveRDS might one day become read.rds and write.rds? That would make them more consistent with the other reading and writing functions. Hadley -- Assistant Professor / Dobelman Family Junior Chair Department of Statistics / Rice University http://had.co.nz/

> On Jun 8, 2018, at 1:49 PM, Hadley Wickham <h.wickham at gmail.com> wrote: > > Hmmm, yes, there must be some special case in the C code to avoid > recycling a length-1 logical vector: Here is a version that (I think) handles Herve's issue of arrays having one or more 0 dimensions. subset_ROW <- function(x,i) { dims <- dim(x) index_list <-

Hi all, Is there a fast way to determine the number of lines in a file? I'm looking for something like count.lines analogous to count.fields. Hadley -- http://had.co.nz/

Is it conceivable that Julia could be ported to use R syntax in a way that would allow the vastly larger numbers of R programmers to seamlessly switch? Or equivalently, could an iteration of R itself do this? On Fri, Aug 5, 2016, 9:00 AM Hadley Wickham <h.wickham at gmail.com> wrote: > When it was being actively worked on, it had the advantage of existing. > > Hadley > > On

> On Jun 8, 2018, at 11:52 AM, Hadley Wickham <h.wickham at gmail.com> wrote: > > On Fri, Jun 8, 2018 at 11:38 AM, Berry, Charles <ccberry at ucsd.edu> wrote: >> >> >>> On Jun 8, 2018, at 10:37 AM, Herv? Pag?s <hpages at fredhutch.org> wrote: >>> >>> Also the TRUEs cause problems if some dimensions are 0: >>>

a <- data.frame(b = rep(1:5, each=2), c=factor(rep("a",10), levels=c("a","b"))) levels(subset(a, b=1, drop=T)$c) # [1] "a" "b" Is this a bug? Thanks,, Hadley