similar to: Error generated by .Internal(nchar) disappears when debugging

On 05/10/2015 7:24 PM, Matt Dowle wrote: > Joris Meys <jorismeys <at> gmail.com> writes: > >> >> Hi all, >> >> I have a puzzling problem related to nchar. In R 3.2.1, the internal > nchar >> gained an extra argument (see >> https://stat.ethz.ch/pipermail/r-announce/2015/000586.html) >> >> I've been testing code using the

On 05/10/2015 8:25 PM, Matt Dowle wrote: > > On Mon, Oct 5, 2015 at 4:57 PM, Duncan Murdoch <murdoch.duncan at gmail.com > <mailto:murdoch.duncan at gmail.com>> wrote: > > On 05/10/2015 7:24 PM, Matt Dowle wrote: > > Joris Meys <jorismeys <at> gmail.com <http://gmail.com>> writes: > > > >> > >> Hi all,

Malcolm, I tested the code on a clean R 3.2.0 session. Not even in RStudio, just to rule that out. > sessionInfo() R version 3.2.0 (2015-04-16) Platform: x86_64-w64-mingw32/x64 (64-bit) Running under: Windows 8 x64 (build 9200) locale: [1] LC_COLLATE=English_United Kingdom.1252 [2] LC_CTYPE=English_United Kingdom.1252 [3] LC_MONETARY=English_United Kingdom.1252 [4] LC_NUMERIC=C [5]

On 06/10/2015 8:48 AM, Joris Meys wrote: > > > On Tue, Oct 6, 2015 at 1:57 AM, Duncan Murdoch <murdoch.duncan at gmail.com > <mailto:murdoch.duncan at gmail.com>> wrote: > > On 05/10/2015 7:24 PM, Matt Dowle wrote: > > Joris Meys <jorismeys <at> gmail.com <http://gmail.com>> writes: > > > >> > >>

On Tue, Oct 6, 2015 at 1:57 AM, Duncan Murdoch <murdoch.duncan at gmail.com> wrote: > On 05/10/2015 7:24 PM, Matt Dowle wrote: > > Joris Meys <jorismeys <at> gmail.com> writes: > > > >> > >> Hi all, > >> > >> I have a puzzling problem related to nchar. In R 3.2.1, the internal > > nchar > >> gained an extra

On Mon, Oct 5, 2015 at 4:57 PM, Duncan Murdoch <murdoch.duncan at gmail.com> wrote: > On 05/10/2015 7:24 PM, Matt Dowle wrote: > > Joris Meys <jorismeys <at> gmail.com> writes: > > > >> > >> Hi all, > >> > >> I have a puzzling problem related to nchar. In R 3.2.1, the internal > > nchar > >> gained an extra

What other packages do you have loaded? Perhaps a BioConductor one that loads S4Vectors that announces upon load: Creating a generic function for 'nchar' from package 'base' in package 'S4Vectors' Maybe a red herring... ~Malcolm > -----Original Message----- > From: R-devel [mailto:r-devel-bounces at r-project.org] On Behalf Of Duncan > Murdoch > Sent:

Hi, Is nchar function knowingly slow in R? I'm doing some string formatting that requires multiple call to nchar, and nchar seems to be very slow. Experiment 1, pass nchar inside sprintf, and it takes 0.7 seconds > system.time(for (i in 1:10000) + str = sprintf('0005%020d', nchar(op)) + )[3] [1] 0.7 Experiment 2, get the length of op separately using nchar, and then pass

In R 2.9.1 Windows: > nchar(factor(paste('sdf',1:10))) [1] 1 1 1 1 1 1 1 1 2 1 so it appears that nchar is counting the number of characters in the numeric representation, just like: > nchar(as.numeric(factor(paste('sdf',1:10)))) [1] 1 1 1 1 1 1 1 1 2 1 but ?nchar says explicitly: x: character vector, or a vector to be coerced to a character vector.

I don't understand why nchar() gives different string lengths for vectors in a list than it does for vectors in a dataframe. Here's a snippet of code: > temp <- list(text=c("thug","jimbob","apple","thug"),numbers=1:4) > nchar(temp$text) [1] 4 6 5 4 > temp <- data.frame(temp) > nchar(temp$text) [1] 1 1 1 1 Could someone explain

I would propose to add " See also: `nchar' for counting the number of character in character vectors. " to the helpfile of length(), because it is rather difficult to find nchar() if one has only search terms as "length", "len", "strlen" in mind. Sincerly Wolfram Fischer

Those of you who track R development closely, will have noticed yesterday's commit of enhanced versions of nchar() and nzchar(). ------------------------------------------------------------------------ r68254 | maechler | 2015-04-23 18:06:37 +0200 (Thu, 23 Apr 2015) | 1 line Changed paths: M doc/NEWS.Rd M src/library/base/R/New-Internal.R M src/library/base/R/zzz.R M

I've noticed that I get a warning message every time a package masks some functions from Hmisc. The warning message says : Warning message: In identical(get(., i), get(., lib.pos)) : ignoring non-pairlist attributes This happens with eg: library(plyr) library(xtable) I think I've seen this passing by before, but I'm not sure any more. Just thought I'd mention it. Cheers Joris

Hello, Is this expected ? > nchar( c( "", NA ) ) [1] 0 2 Should not the second one be NA ? Romain -- Romain Francois Professional R Enthusiast +33(0) 6 28 91 30 30 http://romainfrancois.blog.free.fr |- http://bit.ly/98Uf7u : Rcpp 0.8.1 |- http://bit.ly/c6YnCi : graph gallery collage `- http://bit.ly/bZ7ltC : inline 0.3.5

?typeof? is your friend here: > typeof(`[`) [1] "special" > typeof(mc[[1]]) [1] "symbol" > typeof(mc2[[1]]) [1] "special" so mc[[1]] is a symbol, and thus not a primitive. - Lukas > On 28 Mar 2017, at 14:46, Michael Lawrence <lawrence.michael at gene.com> wrote: > > There is a difference between the symbol and the function (primitive >

Dear all, I want to apply a weighted median on a huge dataset, and I remember a function from the package R.basic that could do this using an internal sorting algorithm qsort. This speeded things up quite a bit. Alas, I can't find that package anywhere anymore. There is a weighted.median function in the package limma too, but I didn't use that before. Anybody who knows what happened to

Dear Martin, Does the work on nchar mean that bugs #16090 and #16091 will be resolved [1,2]? Thanks, Mark [1] https://bugs.r-project.org/bugzilla3/show_bug.cgi?id=16090 [2] https://bugs.r-project.org/bugzilla3/show_bug.cgi?id=16091 On Sat, Apr 25, 2015 at 11:06 PM, James Cloos <cloos at jhcloos.com> wrote: > >>>>> "GC" == G?bor Cs?rdi <csardi.gabor at

Dear all, I'm updating a package regarding a new type of models, and I'm looking to extend the formula interface with two functions (L() and R() ) for construction of these models. I want to use as much of the formula interface as possible, and hoped to do something similarly to I(). I know the I() function does nothing more than add the class "AsIs". I've been browsing the

Hi, my data frame is x<-data.frame(ID=c("abc/def","abc/def/ghi","abc","mno/pqr/st/ab")) I want to split my column ID using "/" as the place to split. How can I do that without telling the code how many sub-columns. I could use nchar(gsub("[^/]","",x$ID)) to get how many "/" are in each row of the column, but could

Hi all, Many thank in advance for helping me.? I tried to fit Expectation Maximization algorithm for mixture data. I must used one of numerical method to maximize my function. I built my code but I do not know how to make the optim function run over a different value of the parameters.? That is, For E-step I need to get the value of mixture weights based on the current (initial) values of