similar to: ?as.POSIXct (PR#13587)

Dear R Helpers, I have imported an SPSS file that contains date data. The data appear in R in a numeric format, as follows: 10485849600 10477641600 10561104000 10562745600 etc. I'd be extremely grateful if someone could tell me how to make these numbers into comprehensible dates! Thanks, Jonathan Williams

Hello R-user bug seekers are needed! In order to perform these simple tasks you have to use a copy of SPSS and obviously R. The problem is that date conversion of data coming from SPSS gives wrong results, if we follow ?as.POSIXct ## SPSS dates (R-help 2006-02-17) z <- c(10485849600, 10477641600, 10561104000, 10562745600) as.Date(as.POSIXct(z, origin="1582-10-14",

Dear list, I will shortly have some data that contains numeric dates in the Persian / Jalali calendar format, which I would like to convert to gregorian. At the moment there doesn't seem to be a function for this in R, but it would be great if someone could come up with same - I would attempt it but the algorithm is very complex and this is also way beyond my fairly rudimentary knowledge of

R-Help Trying to convert a Gregorian calendar dataset to a Persian calendar dataset. But I end up with a list and not sure what to do. For example ... dates <- c("2017-10-1","2017-10-2","2017-10-3") myData <- data.frame(dates) myData$dates <- as.Date(myData$dates, format = "%Y-%m-%d") > myData dates 1 2017-10-01 2 2017-10-02 3

Hi, are there any way to convert ISO8601 weeks to gregorian dates? Something like coverttodate(year=2006, week=38, day=1) # Sept 18, 2006 Thanks in advance, Ott

Hello all, kind regards, I have imported a data.frame from SPSS using "foreign":read.spss but unfortunately it is reading dates in a way neither R nor myself can understand. > book$DATE [1] 13502246400 13443321600 13477795200 13472956800 13501728000 13445395200 13501382400 13502851200 13444185600 13461465600 13457232000 [12] 13458096000 13432435200 13431484800 13495334400

I don't use SPSS but following through on your detective work can provide the likely answer. First note that both date numbers are evenly divisible by the number of seconds in a day, i.e. 24*60*60. This suggests that these numbers are seconds since some origin. Since we know "2003/02/11" corresponds to 13264300800 we deduce that the origin must be spss.orig <-

How about > p_dates <- paste0(p.dates[[3]], "-", p.dates[[2]], "-", p.dates[[1]]) > myData$p_dates <- p_dates > print(myData, right=FALSE) dates p_dates 1 2017-10-01 1396-7-9 2 2017-10-02 1396-7-10 3 2017-10-03 1396-7-11 > str(myData) 'data.frame': 3 obs. of 2 variables: $ dates : Date, format: "2017-10-01"

Windows-32 has a time structure called FILETIME, a 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601 (UTC). That is not a typo, the year is 1601. Does anyone have a clue(or algorhithm)for how this is converted to something a little more POSIX-like ? Thank you, Derek -- Derek N. Eder Gothenburg University VINKLA - Vigilance and Neurocognition

Hi all, Sorry if this doesn't end up in the thread. Tobias Verbeke forwarded that e-mail to me, because he thought I would be interested in maintaining the Programming Tools CTV. I wasn't subscribed to R-devel yet, but I would indeed like to volunteer to maintain the Programming Tools CTV. It will be my first time creating a CTV, so some guidance on getting it setup will be appreciated.

I have found a strange "ifelse" behaviour (I think) This works: > ifelse(T,1+1,1+2) [1] 2 > ifelse(F,1+1,1+2) [1] 3 Maybe I missed something about R internals, but why > ifelse(T,print("hello"),print("goodbye")) [1] "hello" [1] "hello" > ifelse(F,print("hello"),print("goodbye")) [1] "goodbye" [1]

Dear Willem, Personally, I use the R-forge project for the distribution CTV : https://r-forge.r-project.org/projects/ctv/ It?s an alternative option to github. Regards, Christophe --------------------------------------- Christophe Dutang LMM, UdM, Le Mans, France web: http://dutangc.free.fr Le 23 janv. 2015 ? 12:49, Luca Braglia <lbraglia at gmail.com> a ?crit : > Hi Willem >

Hello * is possible to have something like the LaTeX \href in Rd ? \url doesn't fit very well, and I didn't find much about. I have a long (external to the help system, a www one) url but i would like it to be "hidden" from a small word with the link. Please CC me! ;) thanks in advance Luca

Hi read.table in a table with numb of read elements not multiple of columns Avviso in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : il numero di elemtni letti non ?? un multiplo del numero di colonne --> change "elemtni" to "elementi" Regards Luca

I've had a lot of requests for additions to the reproducible research task view that fall into a grey area (to me at least). For example, roxygen2 is a tool that broadly enable reproducibility but I see it more as a tool for better programming. I'm about to check in a new version of the task view that includes packrat and checkpoint, as they seem closer to reproducible research, but also

On Thu, Jan 22, 2015 at 12:45 PM, Achim Zeileis <Achim.Zeileis at uibk.ac.at> wrote: > On Thu, 22 Jan 2015, Max Kuhn wrote: > >> I've had a lot of requests for additions to the reproducible research >> task view that fall into a grey area (to me at least). >> >> For example, roxygen2 is a tool that broadly enable reproducibility >> but I see it more as

I have isolated what appears to be a bug in the Rails extensions to DateTime, but I don''t know where to report it. I have a standalone file to demonstrate the bug, but the punch line is that this code: TestRecord.create!(:f_datetime => (expected = DateTime.jd(2000000))) found = TestRecord.first.f_datetime puts("expected == found => #{expected == found}")

A new package ConvCalendars is on CRAN, in response to requests earlier this week. It performs conversions between the Gregorian calendar and other calendars including the Persian (Jalali) calendar used in Iran and Afghanistan and the Hebrew calendar used in Israel. All the heavy lifting is done by C code from http://www.projectpluto.com. -thomas Thomas Lumley Assoc. Professor,

A new package ConvCalendars is on CRAN, in response to requests earlier this week. It performs conversions between the Gregorian calendar and other calendars including the Persian (Jalali) calendar used in Iran and Afghanistan and the Hebrew calendar used in Israel. All the heavy lifting is done by C code from http://www.projectpluto.com. -thomas Thomas Lumley Assoc. Professor,

During one of my controller actions I want to call an external machine before I do anything. It''s not a real web service, more like a REST-style thing where I''ll just be tweaking a servlet running on another machine and sending it some data. Does Rails give me anything to work with for doing that? I read the web service stuff but it''s overkill for what I need. I