similar to: POSIX revisited

A non-text attachment was scrubbed... Name: not available Type: text/enriched Size: 905 bytes Desc: not available Url : https://stat.ethz.ch/pipermail/r-help/attachments/20010420/61ada248/attachment.bin

G'Day, I'm a little confused why the c function has the followng effect on classes - is this a feature ? My workround [ class(cc) <- c("POSIXt", "POSIXct") ] seems to do the job. Many thanks Bernie McConnell "R version 1.3.1, 2001-08-31" on NT > aa <- as.POSIXct("2001-09-23") > bb <- as.POSIXct("2001-09-24") > cc

Dear All, The recent improvement in RODBC to recognize datetimes in tables has exposed my ongoing confusion. All my data are obtained from a satellite system (Argos) which tags events in the GMT time zone. Daylight saving is ignored. To my way of thinking this means that 1. twelve-o-clock means halfway through the day regardless of season, and 2. the difftime of any two dates where

G'Day again, I am attempting to read a large MSAccess file into R, but get memory problems. With the first 100 rows of the table ("Macca99") things, as shown below, are fine and the resulting object is 33,780 bytes. But when I read the entire table ("MaccaDiv99") which is 218,000 rows R falls over with the message: Rgui.exe - Application error The instruction at

G'Day, I want to access in a function called from tapply the current factor. In my example below, all I want to do is to write the current factor on each histogram. Needless to say my example does not work. I would be grateful for pointers in the right direction. Many thanks Bernie McConnell Sea Mammal Reserach Unit cc <- 1:10 ff <- rep(c("a","b"),5) pp<-

Good Day, Perhaps I have missed a posting but ... I cannot find the RODBC package on cran at www.stats.bris.ac.uk/R/. Many thanks Bernie McConnell -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the

The problem with POSIXt is that you must consider timezones and daylight vs. standard time issues even if you don't want to. This violates modularity (viz. your routines becomes coupled to unrelated information) and leads to subtle errors where different routines are assuming different time zones. The problem is that the time, date, day of the week, month, etc. of a date depend on its

A non-text attachment was scrubbed... Name: not available Type: text/enriched Size: 1599 bytes Desc: not available Url : https://stat.ethz.ch/pipermail/r-help/attachments/20010102/cf0e43dd/attachment.bin

A non-text attachment was scrubbed... Name: not available Type: text/enriched Size: 880 bytes Desc: not available Url : https://stat.ethz.ch/pipermail/r-help/attachments/20010207/2dfab583/attachment.bin

Hi, One of the big decisions when writing code is how to handle dates and times. Gabor Grothendieck provided an excellent overview of the issue in his R News 4/1 (2004) article, and many users and developers are probably using it as a guide. The proposed guideline is to use the simplest class required; as Gabor put it "use Date if possible, otherwise use chron, and otherwise use

Sure I'm missing something simple here, but I haven't been able to find a easy way to convert a pure numeric (# of seconds since the beginning of 1970) back into a POSIX* object. ex. > z<-as.POSIXct(Sys.time()) > z [1] "2002-05-01 10:33:56 Mountain Daylight Time" > x<-unclass(z) > x [1] 1020270836 Is there a simple way to transform x back into a POSIX*

OK. What if I have a time series which is collected every Monday, please? What is the proper way to use the start option within the ts command in order to indicate that this is Monday data, please? Thanks again! Sincerely, Erin

Greetings, Scenario: Centos box with eth1 (10.0.0.0/24) and eth0 (192.168.0.0/24) segment on eth0 has access to full bandwidth of uplink Both are on 100mbps switches Requirements: bandwith on segment on eth1 needs to be throttled to different speeds - say 32, 64, 128kbps and the such. Required for application performance testing purposes. As usual my girlfriend google is very verbose.

On Sun, 11 Jan 2004, Dirk Eddelbuettel wrote: > On Fri, Jan 09, 2004 at 06:01:27PM +0100, christoph.schmutz@meteoschweiz.ch wrote: > > Full_Name: Christoph Schmutz, MeteoSchweiz, Switzerland > > Version: R1.7.1, R1.8.1 > > OS: windows2000, solaris sunOS 5.8 > > Submission from: (NULL) (141.249.133.6) > > > > > > > > I'm not sure if I

I have recently been told I will have to maintain some CentOS servers at work. Since I have only been using Slackware for the last 16 years, I decided to install CentOS on one of my servers at home to get an idea of the differences. I installed CentOS 5.4 from CD with no problems, did a yum update, set up a couple of samba shares and started to copy over some files from one of my other

Hello, I am trying to deal with a database table that contains a date in the form of the number of seconds since epoch. Data is inserted in this format by an existing script that I can''t change, so a schema change isn''t realistic. I would like to allow humans to view and edit this data in the form of an actual human-readable date. I figured a facade column would be the

Full_Name: Christoph Schmutz, MeteoSchweiz, Switzerland Version: R1.7.1, R1.8.1 OS: windows2000, solaris sunOS 5.8 Submission from: (NULL) (141.249.133.6) I'm not sure if I don't get the clue, but please consider this: > strptime("19930870150","%Y%j%H%M") [1] "1993-03-28 01:50:00" > strptime("19930870250","%Y%j%H%M") [1]

Hi, In view of the problems I was having with DomU network timeout after a live migration (I posted that problems here a while ago but never got anything except from private emails) I finally updated my Debian/Squeeze Dom0s last night to a new kernel, from 2.6.32-23 to 2.6.32-26. Now live migration just hangs...Any ideas? Xen-related Debian packages (all from Debian repositary, except drbd

Running under Windows XP 64 bit, as.POSIXlt()/as.POSIXct() seem to think that US time zones (EST5EDT, MST7MDT) switched from daylight savings back to standard time on Oct 28, 2007, whereas the switch is actually on Sun Nov 04, 2007. Examples: > Sys.timezone() [1] "Mountain Daylight Time" > as.POSIXct("2007-10-30 12:38:47") [1] "2007-10-30 12:38:47 Mountain

Hi, I'd set the daylight saving option to yes on all the GXP-2000 phones, but apparantly it doesn't move it an hour back on last sunday of October. So now I am stuck will all the phones showing the wrong time. Isn't there an option so that it'll automatically update daylight savings? Thanks -- Zeeshan A Zakaria -------------- next part -------------- An HTML attachment was