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Without 'collapse', 'paste' pastes (concatenates) its arguments elementwise (separated by 'sep', " " by default). New in R devel and R patched, specifying recycle0 = FALSE makes mixing zero-length and nonzero-length arguments results in length zero. The result of paste(n, "th", sep = "", recycle0 = FALSE) always have the same length as

There is still the situation where **both** 'sep' and 'collapse' are specified: > paste(integer(0), "nth", sep="", collapse=",") [1] "nth" In that case 'recycle0' should **not** be ignored i.e. paste(integer(0), "nth", sep="", collapse=",", recycle0=TRUE) should return the empty string

Hi Martin et al, On Thu, May 21, 2020 at 9:42 AM Martin Maechler <maechler at stat.math.ethz.ch> wrote: > >>>>> Herv? Pag?s > >>>>> on Fri, 15 May 2020 13:44:28 -0700 writes: > > > There is still the situation where **both** 'sep' and 'collapse' are > > specified: > > >> paste(integer(0),

i have a data frame(dat) which has many variables.and i use the following script to get the crosstable. >danx2<-c("x1.1","x1.2","x1.3","x1.4","x1.5","x2","x4","x5","x6","x7","x8.1","x8.2","x8.3","x8.4","x11",

I agree with Herve, processing collapse happens last so collapse=non-NULL always leads to a single character string being returned, the same as paste(collapse=""). See the altPaste function I posted yesterday. Bill Dunlap TIBCO Software wdunlap tibco.com On Fri, May 22, 2020 at 9:12 AM Herv? Pag?s <hpages at fredhutch.org> wrote: > I think that > >

Totally agree with that. H. On 5/15/20 10:34, William Dunlap via R-devel wrote: > I agree: paste(collapse="something", ...) should always return a single > character string, regardless of the value of recycle0. This would be > similar to when there are no non-NULL arguments to paste; collapse="." > gives a single empty string and collapse=NULL gives a zero long

Gabe, It's the current behavior of paste() that is a major source of bugs: ## Add "rs" prefix to SNP ids and collapse them in a ## comma-separated string. collapse_snp_ids <- function(snp_ids) paste("rs", snp_ids, sep="", collapse=",") snp_groups <- list( group1=c(55, 22, 200), group2=integer(0), group3=c(99,

I think that paste(c("a", "b"), NULL, c("c", "d"), sep = " ", collapse = ",", recycle0=TRUE) should just return an empty string and don't see why it needs to emit a warning or raise an error. To me it does exactly what the user is asking for, which is to change how the 3 arguments are recycled **before** the 'sep'

On 5/23/20 17:45, Gabriel Becker wrote: > Maybe my intuition is just > different?but when I collapse multiple character vectors together, I > expect?all the characters from each of those vectors to be in the > resulting collapsed one. Yes I'd expect that too. But the **collapse** operation in paste() has never been about collapsing **multiple** character vectors together. What it does is collapse the **single** character vector that comes out of the 'sep' operation. So paste(x, y, z, sep="", c...

I understand that this is consistent but it also strikes me as an enormous 'gotcha' of a magnitude that 'we' are trying to avoid/smooth over at this point in user-facing R space. For the record I'm not suggesting it should return something other than "", and in particular I'm not arguing that any call to paste *that does not return an error* with non-NULL

Hi all, I use txtProgressBar to monitor progress of large computations. What I miss is the ability to redirect the progress bar to a stream other than stdout, specifically to the message stream. This would be useful for running Sweave scripts: When redirected to stderr, the bar could be visible even though console output is diverted to the output file (and there would be no cluttering of the

>>>>> suharto anggono--- via R-devel >>>>> on Fri, 1 May 2020 03:05:37 +0000 (UTC) writes: > Without 'collapse', 'paste' pastes (concatenates) its arguments elementwise (separated by 'sep', " " by default). New in R devel and R patched, specifying recycle0 = FALSE makes mixing zero-length and nonzero-length arguments

...make it do > the right thing. Let's not miss that opportunity. > I see what you're saying, but I don' know. Maybe my intuition is just different but when I collapse multiple character vectors together, I expect all the characters from each of those vectors to be in the resulting collapsed one. In your example its a string literal tot be added elementwise to the prefix, but what if it is another vector of length > 1. Wouldn't it be strange that all those values are wiped and absent from the resulting string? Maybe it's just me. like for paste(x,y,z, sep ="", coll...

My site : https://radiobiscottes.studioo.fr/ -------- Norbert Deleutre  <http://www.lmgc.univ-montp2.fr/perso/norbert-deleutre/> P 0467149655 UMR CNRS 5508  <http://www.lmgc.univ-montp2.fr/> A Campus Saint-Priest/Montpellier > Le 25 nov. 2020 à 13:04, Damien GENESTE <d.geneste at illud.fr> a écrit : > > Hello Norbert, > > I don't know how i can help

Hey there, (First steps in Ruby and Rails...) I''m trying to make a fieldset collapsible, like they are, for example, on many Drupal pages. What I''ve figuared out is the following: <fieldset id="addressdata" class="collapsible collapsed"> <legend> <%= link_to_function("Show/Hide Addressdata") { |page| page[: addressdata].toggleClassName(''collapsed'') } %> </legend> ... some forms etc. here ... </fieldset> In CSS, I do a display:none for the class ''.coll...

Apparently there is one or more concepts that I do not fully understand from the descriptions of a function and the apply material. I have been reading the mail from this forum and have learned much but, in this case, what I have been reading here and from the manual isn't enough. The following code produces what I want with the for loop. From what I have read from this forum, a for

>>>>> Herv? Pag?s >>>>> on Fri, 15 May 2020 13:44:28 -0700 writes: > There is still the situation where **both** 'sep' and 'collapse' are > specified: >> paste(integer(0), "nth", sep="", collapse=",") > [1] "nth" > In that case 'recycle0' should **not** be

Hi all, This makes sense to me, but I would think that recycle0 and collapse should actually be incompatible and paste should throw an error if recycle0 were TRUE and collapse were declared in the same call. I don't think the value of recycle0 should be silently ignored if it is actively specified. ~G On Fri, May 15, 2020 at 11:05 AM Herv? Pag?s <hpages at fredhutch.org> wrote: >

...;> wrote: > > On 5/23/20 17:45, Gabriel Becker wrote: > > Maybe my intuition is just > > different?but when I collapse multiple character vectors together, I > > expect?all the characters from each of those vectors to be in the > > resulting collapsed one. > > Yes I'd expect that too. But the **collapse** operation in paste() has > never been about collapsing **multiple** character vectors together. > What it does is collapse the **single** character vector that comes out > of the 'sep' operation. >...

I agree: paste(collapse="something", ...) should always return a single character string, regardless of the value of recycle0. This would be similar to when there are no non-NULL arguments to paste; collapse="." gives a single empty string and collapse=NULL gives a zero long character vector. > paste() character(0) > paste(collapse=", ") [1] "" Bill