similar to: Attributes of 1st argument in ...

When the 'by' function forms subsets, are the rows in the same order as they are in the original data frame? For example, I want to use 'by' to calculate cumulative sums of a value 'v' by date 'd' for different levels of a factor 'f': >

Hello: I am building R 2.15.1 from source on a Windows 7 machine with the x64 toolset, MixTeX, and InnoSetup per http://cran.r-project.org/bin/windows/Rtools/. I obtained the source for 2.15.1 via svn from https://svn.r-project.org/R/branches/R-2-15-branch/. This is my first try building R from source. The build seems to go far, then terminates with "undefined exports: .M.classEnv" from

Sirs: My validity function did not run when my class contains="matrix". But if I first define the class with contains="numeric", then define it again with contains="matrix", validity runs. Here's the session: > f <- function(object) "BAD CLASS" # force error to > setClass("A", contains="matrix", validity=f) [1]

Hello:I am trying to match the value 0.3 in the sequence seq(.2,.3). I get > 0.3 %in% seq(from=.2,to=.3) [1] FALSE Yet > 0.3 %in% c(.2,.3) [1] TRUE For arbitrary sequences, this "invisible .3" has been problematic. What is the best way to work around this? Thank you. Dan [[alternative HTML version deleted]]

On 02/03/2020 3:24 a.m., Martin Maechler wrote: >>>>>> robin hankin >>>>>> on Sun, 1 Mar 2020 09:26:24 +1300 writes: > > > Thanks guys, I guess I should have referred to FAQ 7.31 > > (which I am indeed very familiar with) to avoid > > misunderstanding. I have always used dput() to clarify > > 7.31-type

Thanks guys, I guess I should have referred to FAQ 7.31 (which I am indeed very familiar with) to avoid misunderstanding. I have always used dput() to clarify 7.31-type issues. The description in ?dput implies [to me at any rate] that there will be no floating-point roundoff in its output. I hadn't realised that 'deparsing' as discussed in dput.Rd includes precision roundoff issues.

Has the CentOS logo disappeared from CentOS-7? I thought the logo in CentOS-6 was very pleasant. Also I liked the way in which one increasing circle inside another showed how the boot was progressing. The dots going round and round in Microsoft fashion in CentOS-7 is a retrograde step, I think. One always has the fear it might continue forever. -- Timothy Murphy gayleard /at/ eircom.net School

Dear List, I'm struggling with the signature writing cbind/rbind functions for a S4 class. First of all, I'm very happy that it is now possible to dispatch on ... I follow the example for "paste" in ?dotMethods, which works as far as this: ### start example setClass ("cbtest", representation = representation (data = "data.frame"),

Martin, Thank you for discussing this amongst R-core and for detailing the R-core discussion here. Some specific examples where having underscores available would have been useful. 1. My primerTree package (2013) was originally primer_tree, but I had to change the name to camelCase to comply with the check requirements. Using camelCase in the package name makes reading code jarring, as the

Hi, The following function works, but is there a neater way to write it? f = function(x,...) { # return a character vector of the arguments passed in after 'x' gsub(" ","",unlist(strsplit(deparse(substitute(list(...))),"[(,)]")))[-1] } > f(x,a,b,c*d) [1] "a" "b" "c*d" > Thanks. [[alternative HTML

Hi, All: ????? How can I get the names of all the arguments in dots(...)? ????? I'm able to get the name of the first argument but not the second: deparseDots <- function(...){ ? deparse(substitute(...)) } a <- 1 b <- 2 deparseDots(a, b) [1] "a" ????? I'd like to get c('a', 'b'). ????? Thanks, ????? Spencer Graves > sessionInfo() R

>>>>> Herv? Pag?s <hpages at fredhutch.org> >>>>> on Wed, 3 May 2017 12:08:26 -0700 writes: > On 05/03/2017 12:04 PM, Herv? Pag?s wrote: >> Not sure why the performance penalty of nonstandard evaluation would >> be more of a concern here than for something like switch(). > which is actually a primitive. So it seems that

When large calls cause errors R may stall for extended periods.? This is particularly likely to happen with `do.call`, as in this example with a 24 second stall: ??? x <- runif(1e7) ??? system.time(do.call(paste0, list(abs, x)))? # intentional error ??? ## Error in (function (..., collapse = NULL)? : ??? ##?? cannot coerce type 'builtin' to vector of type 'character' ??? ##

On 21/02/18 11:36, Spencer Graves wrote: > Hi, All: > > > ????? How can I get the names of all the arguments in dots(...)? > > > ????? I'm able to get the name of the first argument but not the second: > > > > deparseDots <- function(...){ > ? deparse(substitute(...)) > } > a <- 1 > b <- 2 > deparseDots(a, b) > [1]

On 09/08/2019 4:37 p.m., Gabriel Becker wrote: > Duncan, > > > On Fri, Aug 9, 2019 at 1:17 PM Duncan Murdoch <murdoch.duncan at gmail.com > <mailto:murdoch.duncan at gmail.com>> wrote: > > On 09/08/2019 2:41 p.m., Gabriel Becker wrote: > > Note that this proposal would make mypackage_2.3.1 a valid > *package name*, > > whose

Hi there, I have two series of data. plotting the density function of both gives me an idea about the difference of the data. But I would like to quantify the difference I see. a <- rnorm(100) b <- rnorm(100) da <- density(a) db <- density(b) The problem is that da$x and db$x are different and so I have difficulties to compare them... Is there any way to force the density

Luke, thanks for considering the issue.? I would like to try to separate the problem into two parts, as I _think_ your comments address primarily part 2 below: 1. How can we avoid significant and possibly crippling ?? stalls on error with these non-standard calls. 2. What is the best way to view these non-standard calls. I agree that issue 2. requires further thought and discussion under a

Hi all, Why I am getting, Error: evaluation nested too deeply: infinite recursion / options(expressions=)? Thanks in advance! func <- Vectorize(function(x, a, sad, trunc=0, ...) { result <- function(x) { f1 <- function(n) { dcom <- paste("d", deparse(substitute(sad)), sep="") dots <- c(as.name("n"), list(...)) f <-

We also have a few other suggestions and wishes about backtrace storage and display on the one hand, and display of constructed calls on the other hand. Perhaps it would be better to open a different wishlist item for traceback() to keep the discussions focused? FWIW I think deparsing backtraces lazily is a great idea. Displaying 1 line per call by default in interactive sessions, while being

Hi. I am using R 2.5.1 on a Windows XP machine. Here is an example of a piece of code I was running in older versions of R on the same machine. I am looking for underscores and replacing them with periods. This result is from R 2.4.1: >gsub ( "\\_+","\.","AAA_I") [1] "AAA.I" > Here is what I get in R 2.5.1: >gsub (