search for: spinu

Full_Name: Spinu Vitalie Version: 2.9.0 OS: Windows Submission from: (NULL) (130.115.113.15) In assignment of "zero length" names to data.frame: > tdf <- data.frame(rbind(c(1, 2), c(1, 2))) > names(tdf) <- c("", "") > tdf structure(c("1", "1"), c...

Hi, Browser doesn't work properly with the compiler enabled. It might be intended behavior, but it's not documented. compiler::enableJIT(1) foo <- function(){ browser() cat("here\n") } Browser doesn't stop, and I am getting: > foo() Called from: foo() Browse[1]> here > Thanks, Vitalie. > sessionInfo() R version 2.14.2 (2012-02-29) Platform:

Dear useRs, Here is a weird behavior of transform function: mtcars1<-matcars transform(mtcars1,t1=3,t2=4) Error in data.frame(`_data`, e[!matched]) : arguments imply differing number of rows: 32, 1 instead, this works: mtcars1$t1<-0 transform(mtcars1,t1=3,t2=4) also works if applied in turn: transform(mtcars1,t1=3) transform(mtcars1,t2=4) I often need to use this

Dear UseRs, For various reasons I need to plot multiple ggplots on one device (preferably pdf). Is there a way to achieve that? par(mfrow), split.screen() and layout() seem not to do the job. Thanks, Vitalie.

Hello Everyone! NULL replacement will change expression object into list: > > te <- expression(a=23*4, b=33-2) > te expression(a = 23 * 4, b = 33 - 2) > te[["a"]] <- quote(blabla) #ok > te expression(a = blabla, b = 33 - 2) > te[["a"]] <- NULL #change to list > te $b 33 - 2 I am on w32, version 2.11.1 (2010-05-31) Regards, Vitally.

Hello, I am forwarding this from ESS mailing list, as it's a failure of internal R completion system: This fails: utils:::.assignLinebuffer('iris[iris$Spec') utils:::.assignEnd(15) utils:::.guessTokenFromLine() utils:::.completeToken() utils:::.retrieveCompletions() ## -> [1] "iris[iris$Spec" This works utils:::.assignLinebuffer('iris[ iris$Spec') # note the

Hi, f1 <- function(){ browser() print("aaa") } f2 <- function(){ a <- 12 eval(envir = parent.frame(), bquote({ b <- .(a) })) } Now do, f1() and enter n RET and then {1+2}: Browse[2]> {1 + 2} debug at #1: 1 + 2 Browse[3]> {} is now being debugged. This was never bothering me

Hi, I am getting a strange error with 15.0 which I've not seen with previous versions of R. If sysdata.rda is included in R directory of the package I am getting: R CMD build betfairly.roxygen/ * checking for file ?betfairly.roxygen/DESCRIPTION? ... OK * preparing ?betfairly?: * checking DESCRIPTION meta-information ... OK * excluding invalid files Subdirectory 'R' contains invalid

Hello, JIT compiler interferes with internal R completions: compiler::enableJIT(2) utils:::functionArgs("density", '') gives: utils:::functionArgs("density", '') Note: no visible global function definition for 'bw.nrd0' Note: no visible global function definition for 'bw.nrd' Note: no visible global function definition for 'bw.ucv'

Hi, I am trying to implement messaging protocol that doesn't pre-specify the length of the message in the message header. In other words, I don't know in advance when I will reach the end of the message. I wrote C level parser for strings but when it came to reading from connections I got stuck. API in Connections.h doesn't provide a pointer to an existing connection and there seems

Hi everyone, I would like to inject source reference into R objects from external editor. In my case it's emacs with ESS and ess-tracebug (http://code.google.com/p/ess-tracebug/). Currently the user has to source the file before the src references become available. I would like to spare her, and insert the source references "on-line" during normal interaction (i.e. sending

Dear R developers, Print method for function now tries to open the source file associated with srcref of the function. It outputs only the warning, if file cannot be open, and forgets to print the function definition. Example: eval(parse(text = "tf <- function(a){ b <- a^4 b }", srcfile = srcfile("xxx at 17"))) > tf <srcref: file "xxx at 17"