similar to: taylor expansions with real vectors

On 11/18/19 9:18 AM, Martin Maechler wrote: >>>>>> Henrik Bengtsson >>>>>> on Sun, 17 Nov 2019 14:31:07 -0800 writes: > > $ R --vanilla R version 3.6.1 (2019-07-05) -- "Action of > > the Toes" Copyright (C) 2019 The R Foundation for > > Statistical Computing Platform: x86_64-pc-linux-gnu > > (64-bit) ...

$ R --vanilla R version 3.6.1 (2019-07-05) -- "Action of the Toes" Copyright (C) 2019 The R Foundation for Statistical Computing Platform: x86_64-pc-linux-gnu (64-bit) ... > str(base::`+`) function (e1, e2) > plus <- structure(base::`+`, class = "plus") > str(plus) function (e1, e2) - attr(*, "class")= chr "plus" ## Hmm ... >

On 11/18/19 10:45 AM, Martin Maechler wrote: >>>>>> Tomas Kalibera >>>>>> on Mon, 18 Nov 2019 09:36:14 +0100 writes: > > On 11/18/19 9:18 AM, Martin Maechler wrote: > >>>>>>> Henrik Bengtsson > >>>>>>> on Sun, 17 Nov 2019 14:31:07 -0800 writes: > >> > $ R --vanilla R

I have classes A and B, where B contains A. In the implementation of the group generic for B I would like to use the corresponding group generic for A. Is there a way to do that? I would also appreciate any comments if what I'm trying to do seems like the wrong approach. Here's a stripped down example: setClass("A",

Dear all: I have this: A1 B1 C1 D1 E1 A2 B2 C2 D2 E2 A3 B3 C3 D3 E3 And I want this A1 E1 B1 E1 C1 E1 D1 E1 A2 E2 B2 E2 C2 E2 D2 E2 A3 E3 B3 E3 C3 E3 D3 E3 Example: m<- matrix(1:15,nrow=3,byrow=T) m v<- unlist(list(t(m[,1:4]))) u<- rep(c(5,10,15),c(4,4,4)) data.frame(v,u) This is the result I want but I would like to learn a simpler way to do it. Any clue?

Hi all, I don't understand why this does not what I expect : ## code start here ############## setClass("num",representation(x="numeric")) num<-function(x) new("num",x=x) add<-function(e1,e2) { cat("Computing ",deparse(substitute(e1)),"+",deparse(substitute(e2)),"\n") e1@x+e2@x }

Hello, Is there a way to define a custom unary operator in R (other than making a class and 'overloading' the normal unary operators in R)? The documentation seems to suggest that only custom binary operators are possible with the ``%abc%``construct but I was wondering whether any one has done so. None of the RSiteSearch or RSeek queries I posed suggested that this question had

Hi R users! I was looking at some of the example code for the "environment" function. Here it is: e1 <- new.env(parent = baseenv()) # this one has enclosure package:base. e2 <- new.env(parent = e1) assign("a", 3, envir=e1) ls(e1) ls(e2) exists("a", envir=e2) # this succeeds by inheritance exists("a", envir=e2, inherits = FALSE)

We are communicating with Asterisk via AMI. Running Asterisk version 13.18.5 on an Ubuntu box. If you look at the event response, the Result field is filled with random characters. I'm not sure what to do because that is a completely random result. It makes no sense. We send the following command to asterisk via AMI Action: AGI ActionID: C44415 Channel: SIP/192.168.40.105-00001338

Hello,   I would like to overload the "+" operator so that it can be used to concatenate two strings, e.g "John" + "Doe" = "JohnDoe". How can I 'unseal' the "+" method? > setMethod("+", signature(e1="character", e2="character"), function(e1, e2) paste(e1, e2, sep="") ) Error in

(-2) %% 12 seems to give the wrong result in R pre 63.3: > e1 <- -2 > e2 <- 12 > e1 %% e2 [1] -2 > e1 - floor(e1/e2) * e2 [1] 10 In Splus: > e1 <- -2 > e2 <- 12 > e1 %% e2 [1] 10 > e1 - floor(e1/e2) * e2 [1] 10 Paul Gilbert -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-devel mailing list -- Read

Dear R-ers, I feel I am close, but can't get it quite right. Thanks a lot for your help! Dimitri # I have 2 data frames: x<-data.frame(a=c("aa","aa","ab","ab","ba","ba","bb","bb"),b=c(1:2,1:2,1:2,1:2),d=c(10,20,30,40,50,60,70,80))

Dears members of R list, I would like that a more experienced R user help me to complete this analysis: r = gl(3, 8, label = c('r1', 'r2', 'r3')) e = rep(gl(2, 4, label = c('e1', 'e2')), 3) y = c(26.2, 26.0, 25.0, 25.4, 24.8, 24.6, 26.7, 25.2, 25.7, 26.3, 25.1, 26.4, 19.6, 21.1, 19.0, 18.6, 22.8, 19.4, 18.8, 19.2, 19.8, 21.4, 22.8, 21.3) df =

Dear R-users, Is there a way to test whether a particular environment e is equal to emtyenv(), or for that sake whether two environments e1 and e2 are equal? I tried a couple of ways to compare environments, but neither seem to work: > e1 <- new.env() > e2 <- new.env() > e1 == e2 Error in e1 == e2 : comparison (1) is possible only for atomic and list types > all.equal(e1,

Hello, I am trying to construct a logical expression dynamically, for use in the subset() function. I am puzzled by problems with the code that follows below. Probably there's an easier way to select rows of a data frame according to some dynamic criteria--and I'd love to hear about it--but I'd also like to understand what I'm doing incorrectly in constructing the expression in

Hello everybody R version 2.4.0 alpha (2006-09-15 r39323), MacOSX 10.4.7 Next S4 problem. I have "brob" objects that are large real numbers, and now I want "glub" numbers that are to be a pair of glubs that represent complex numbers. I want to define binary operator "+" so that if either the left or right argument are glubs, it uses .ArithGlub. If either

I am trying to construct a function to which I pass an expression as an argument. >From that expression I want to create a somewhat more complicated expression and then differentiate it using D() or deriv(). To give a simple example, I'd like to be able to do something like e1 <- expression(x^2 + y^2) e2 <- some.magic(e1,"n") or maybe e2 <- some.magic(e1,expression(n))

Buenas tardes a todos, He adaptado una pregunta realizada en otro foro respecto de un caso que me interesa resolver. Sea el data.table: DT <- data.table(caso = rep(1:2, c(3, 2)), empresa = factor(rep(c("E1", "E2"), c(3, 2))), coche = factor(c('A', 'B', 'U', 'W', 'B')), envio = factor(rep(c(T, F), c(3, 2)))) En el siguiente

Hi, The lab in which I send my samples return the results in a format that is difficult for me to run my analysis. The lab outputs the results where each parameter is its own row and it’s not consistently in the same order (and not each sample is tested for the same suite of variables). e.g. >dataset site parameter value a e2 3 a e1 1 a e3 5 b e3

Maybe a new Operator could be defined for a fast and easy double Comparison: `~~` `~~` <- function (e1, e2) all.equal(e1, e2) And document it properly.