similar to: make.unique rbind examples

I love the pointer analogy. Presumably the additional complication of scope breaks this however. * itself would have been a nice operator for this were it not prone to ambiguity (`a * *b` vs `a**b`, from which @ does not suffer). Would this extension require that function authors explicitly enable auto-quoting support? I somewhat envisioned functions seeing the resolved unquoted object (within

(please be gentle, it's my first time) I am interested in discussions (possibly reiterating past threads -- searching didn't turn up much) on the possibility of supporting standard evaluation unquoting at the language level. This has been brought up in a recent similar thread here [1] and on Twitter [2] where I proposed the following desired (in-principle) syntax f <-

Would this return a quosure? (i.e. a single sided formula that captures both expression and environment). That's the data structure we've adopted in tidyeval as it already has some built in support. Hadley On Friday, March 17, 2017, Michael Lawrence <lawrence.michael at gene.com> wrote: > Interesting idea. Lazy and non-standard evaluation is going to happen; the > language

Hi, Infinite recursion in S3 methods seem to crash R on Windows 2000 (R terminating with the ("Rgui.exe has generated errors...") message, rather than throwing an error. This happens with both Rgui and Rterm. The following toy example triggers this: myf <- function(x, ...) UseMethod("myf") myf.default <- function(x, ...) myf(x) myf(1) ...R crashes... Which I

Hi, I have reconstructed ancestral character states on a phylogeny using MuSSE in the diversitree package and plotted the character state probabilities as pie charts on the nodes. I would, however, like to colour the character states of my extant species, i.e. the tip labels, the same colours as my pie charts, such that all species in state 1 are e.g. blue, species in state 2 red and species in

Hi all, I am having a little problem with S4 group generics (apologies if I get some terminology wrong below). I'm finding I can set methods for some group generic functions, but not others: > setClass("foo", representation(data="numeric")) > x <- new("foo", data=1:10) ## Setting "Ops" works just as expected: > setMethod("Ops",

As Bert said, redefining functions like "[" is surely inadvisable, because of possibility of breaking codes that depend on the intended behavior. This is a language _feature_. If the problem is indexing beyond array extent, just check for it: Are any values that are going to be used for indexing larger than the length of the object? E.g., if (any(idx > length(x)))

Full_Name: Jonathan Tuke Version: 2.4.0 OS: Mac OS X 10.4.8 Submission from: (NULL) (203.173.46.189) I am writing C code to implement in R. I am using R CMD SHLIB and then dyn.load("file.so"). The function I then call with .C("function"). Since I installed the latest R version, I have found that if I alter my C code and recompile, then use dyn.load("file.so"), the

I have a dataset of the form Year tosk.fai tosk.isd tosk.gr ....... tosk.total hysa.fai hysa.isd ... and so on. I want to sum all the columns using the first four letters in the columns label(e.g. 'tosk', 'hysa' etc.). How can you do that? Also, the sums should be without the '.total'column (e.g. 'tosk.total') as this serves as a check that

I'm trying to manipulate/change a formula prior to passing it to another function. A simplified example: User passes formula to my function: y~x My function does: lm(transform(y)~x) Here, transform() is added to the model's response. What is the best way to accomplish this?

Hi R! I am reading in a text file which has one column of alpha data and 5 columns of numeric data. There is a header row. I would like the alpha data column to just be character rather than factor. Is there a way to do this, please? I'm thinking that it might be I() but can't figure out exactly how. Thanks, Laura mailto: lauraholt_983 at hotmail.com R 2.0.1 Windows

hello, i wonder how is string represent in R. if i have a string s= "hello", how can i refer to first character in the string s? also if i have s1 = "hello.1", s2 = "ok.1", how can i separate the s1 into "hello" "1" and s2 into "ok" and "1"? I have tried to use the substring function, but i don't where i can get the index

Hi all Is there any reason why the parameter i in a "for" loop ignores a value of zero? For example sim=c() p=.2 for(i in 0:5) {sim[i]=dbinom(i,5,p) } sim [1] 0.40960 0.20480 0.05120 0.00640 0.00032 In this example the quantile i= 0 was ignored since dbinom(0,5,p) [1] 0.32768 The same behaviour occurs if I use a while loop to perform the same calculation: sim=c() p=.2 i=0

Hi there, I am working on a project which needs the value of the interaction area under two distributions( eatimated by kernel density estimators). For example: x<-rnorm(100,0,1) y<-rnorm(100,0.2,1) density(x) # This produces the summary of dependent variable and independent variable. How can I get the individual values of variables and reform a curve to calculate the area under

Hello, probably this isn't hard, but I can't get R to do this. Thanks for your help! Assume I have a matrix of two covariates: n <- 1000 Y <- runif(n) X <- runif(n,min=0,max=100) data <- cbind(Y,X) Now, I would like to compute the local average of Y for each X interval 0-1, 1-2, 2-3, ... 99-100. In other words, I would like to obtain 100 (local) Ybars, one for each

I am revising the section in R-admin on platforms. When I asked about locales earlier this year I got no reply about HP-UX and IRIX, so I will presume that no one has built R on those OSes recently. If you have, please send me the OS number and the flags you used. Platforms where I have seen recent reports: Linux MacOS X Solaris 8, 9, 10 (any Solaris 7 users please let me know) AIX 5.1

Hi All, I need to sample a vector ("old"), with replacement, up to the point where my vector of samples ("new") sums to a predefined value ("target"), shortening the last sample if necessary so that the total sum ("newsum") of the samples matches the predefined value. While I can easily do this with a "while" loop (see below for example

Hi, I have played previously with VMWare and HyperV based solutions for virtualization but not with Xen so forgive me if this question has an obvious answer or has been asked before. Google has not provided me with an obvious answer on this so... I have a home pc with a tv tuner card in it which I was hoping that after setting up Xen I could map that piece of hardware to a specific virtual

Dear R-users, I'm trying to add a title on a plot with both mathematical notation and values substitution. I read the documentation and search the mailing list but I was not able to solve my problem. Actually, there is a message by Uwe Ligges on June 2003 which addresses a question very close to mine, but the code provided doesn't work. The code is the following: # I add this to let you

v 2.0.1 (sooooh old!) on Win2k I think I know the answer to this but I can hope ... I have data for continuous variables (measures of residents) by a categorical variable in range (1,22), the units in which they live. I want to plot these data with a pair of boxplots one above another with same x-axis (1,22) using par(mfrow=c(2,1)) and then plotting first for the women then for the men.