similar to: RFC: System and time support functions in R

I'm trying to generate POSIXct times in a call to a C function. However, I'm having trouble generating times with the proper offset from UTC. Can anyone offer any help with this issue? I've looked at R-2.0.1/src/main/datetime.c, but I was not able to find an example that I could easily pull from that file. Thanks in advance, Whit Here is my example in C: #include <stdio.h>

Dear List: Sorry for posting maybe a trivial question, but I have a basic understanding problem. If I have say pack1 and pack2, two R packages, and pack2 depends on and imports pack1 fully (as in the code below), is there a way to make all the functionality of pack1 available for the global and other environments (not only for the functions called from withing pack2) by loading pack2 only? I

I'm trying to get R 1.9.0 running on AIX 5.1 with the standard AIX compilers (xlc, xlf) and it is failing 2 of the tests, test-Reg in reg-tests-1.R like this: bash-2.05b$ tail -30 reg-tests-1.Rout.fail [,1] [,2] [1,] 1 3 [2,] 2 4 [3,] 1 3 [4,] 2 4 > stopifnot(typeof(res) == "list") > ## were not implemented in 1.8.1 > > > ## Date objects with

Hi R help, I am having problems running calculations in both the standard R GUI (ver 2.11.0) and the Java GUI for R (1.7-2) in Windows XP Service Pack 3 (2.2 GHz processor with 2 GB of RAM). When I try to import my data and run calculations on it, the GUI closes within a minute, sometimes almost instantaneously after I try to import data to then run the rest of my script. Has anyone had this

-------- --Multipart_Thu_Apr__8_13:33:51_1999-1 Content-Type: text/plain; charset=US-ASCII Hello guys, I always wondered why smbclient keeps timestamp in `put'ting a file but does not keep it in `get'ting a file. Alternative to keep the time stamp in `get'ting file is to use -Tc option or smbtar script, but they are a bit hairy for interactive use, and it can only dump files with an

Hi all, I have problems with years of dates using "chron" package. I don't understand why R by this istruction: > dates("01/02/29",out.format="d/m/year") [1] 02/Jan/2029 > dates("01/02/30",out.format="d/m/year") [1] 02/Jan/1930 reads "29" as 2029 and "30" as 1930. How could I change to read "00" to

Dear r-helpers, This is a little bit more of a Windows problem than an R problem, but ... any idea how to query the *available* locales from within R (or otherwise) on a Windows system? Teaching in a Spanish-language setting and would like to do something like Sys.setlocale("LC_TIME","en_US") (for example so that we can convert dates like "1970-jan-01" with

I tried the code that Richard O'Keefe posted last week, to wit: library(chron) ymd.to.POSIXlt <- function (y, m, d) as.POSIXlt(chron(julian(y=y, x=m, d=d))) n <- 100000 y <- sample(1970:2004, n, replace=TRUE) m <- sample(1:12, n, replace=TRUE) d <- sample(1:28, n, replace=TRUE) system.time(ymd.to.POSIXlt(y, m, d)) [1] 8.78 0.10

Hi! Is not there an standard R function to retrieve the day of the year (since 1st Jan of the same year)? I know I can make my own using julian, but find it weird that having days(), months() etc doy() does not exist as an standard function. Also, is the following not a bit inconsistent? > a <- chron("20100506",format="ymd") > a [1] 100506 > years(a) [1] 2010

R 2.12.2 on Scientific Linux 6.4 #works chron(times.="15:00:00", format=c(times="h:m:s")) #doesn't work chron(times.="15:00", format=c(times="h:m")) From chron Manual: The times format can be any permutation of "h", "m", and "s" separated by any one non-special character. The default is "h:m:s". what am I

I've always found the chron library to be useful for tasks like this: > x <- round(runif(10)*100000, digits=0) > y <- as.Date(x, origin="1970-01-01") > library(chron) > days(y) [1] 7 25 26 25 10 24 1 31 12 8 31 Levels: 1 < 2 < 3 < 4 < 5 < 6 < 7 < 8 < 9 < 10 < 11 < 12 < 13 < ... < 31 Notice that it returns the days as

the date were created with chron with this argument format=c(dates="Y/m/d", times="H:M:S")) so I have the dates being displayed as (10/06/22 12:00:00) I would like to have them displayed as "2010-06-22 12:00:00" or "%Y-%m-%d %H:%M:%S" and then I can convert these for mergeing with another data frame x <- (structure(c(14464, 14464.0104166667,

I have a text file log2.log encoded Ansi in Windows. When I execute: out <- read.zoo(readLines(con <- file("log2.log", encoding="UCS-2LE")),FUN = as.chron) have errors: Error en file(file, "rt") : no se puede abrir la conexi?n Adem?s: Mensajes de aviso perdidos 1: In file(file, "rt") : s?lo fue usado el primer elemento del argumento

what package should I include to use timeDate? I want to convert a double (num of millis) into date object.

Full_Name: Alec Stephenson Version: 1.6.0 OS: linux Submission from: (NULL) (148.88.138.5) Appears to be a sign error in as.POSIX(lt/ct) > library("chron") The following is fine, with default origin. > tmp <- chron(1:2, origin = c(1,1,1970)) > as.POSIXlt(tmp) [1] "1970-01-02 01:00:00 GMT" "1970-01-03 01:00:00 GMT" These are not. > tmp <-

Source: xen Version: 4.17.3+10-g091466ba55-1 Severity: serious Tags: patch pending sid trixie Justification: library ABI skew on upgrade User: debian-arm at lists.debian.org Usertags: time-t NOTICE: these changes must not be uploaded to unstable yet! Dear maintainer, As part of the 64-bit time_t transition required to support 32-bit architectures in 2038 and beyond

Hi all, I am writing a R extensions, and I need pass time_t to R in C, but I don't know how to do. Can you give me some help? do not use double directly. Thanks, Bill -- *Travel | Programming* *http://freecnpro.net* <http://freecnpro.net> [[alternative HTML version deleted]]

Dear all, I have a dataset with one column being of class Date. When I write the output, I would like that column being written as number of days from 1970-01-01. I could not find anywhere a way to do it. Thanks, Marco -- View this message in context: http://r.789695.n4.nabble.com/Write-date-class-as-number-of-days-from-1970-tp4666155.html Sent from the R help mailing list archive at

Dealing with "1601-01-01T00:00:00Z" is unnecessarily awkward, especially since the value only represents a 0 found in the data. Signed-off-by: Alex Nelson <ajnelson at cs.ucsc.edu> --- xml/hivexml.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/xml/hivexml.c b/xml/hivexml.c index cf11676..5030c24 100644 --- a/xml/hivexml.c +++ b/xml/hivexml.c @@

Hola a todos: Debe de ser una tontería, pero no consigo saber porque la siguiente linea no devuelve la fecha actual: as.Date(as.numeric(Sys.time())) He hecho esa prueba porque no consigo pasar un numero convertido a partir de una fecha y modificado a fecha de nuevo. Gracias por adelantado. Un saludo, Alberto. [[alternative HTML version deleted]]