similar to: as.vector with mode="list" and POSIXct

I understand that the two following loops should produce the exact same output. However, they do not. It appears that looping directly through the sequence of Date objects somehow makes them be coerced to numeric: > date1 = "20130301" > date2 = "20130302" > > d1 = as.Date(date1, format="%Y%m%d", tz="GMT") > d2 = as.Date(date2,

Hi guys After fixing my master_auth problem i have one error message left and i don't know what to do. The message from dovecot -n is: service auth { unix_listener /var/spool/postfix/private/auth { group = vmail mode = 0666 user = vmail } unix_listener auth-master { mode = 0666 } } My conf file looks like userdb { driver=static args = uid=10000 gid=10000

Hi list I have a problem and I hope anyone here can provide me a solution to my problem. I have a Samba4 Server installed on a hosted platform with bind9 flatfile backend. The OS is Ubuntu 12.04 LTS. All tests on the server succeeded. Name resolution works fine and also the sambaclient -L localhost -U% is successful. Whenever I try to join the domain with my Win8 machine I get the

From POSIXct to numeric and back with time zone I am running regressions on data which has time series with different time resolution. Some data has hourly resolution, while most has either daily or weekly resolution. Aggregation is used to make the hourly data daily, while liner interpolation is used to find daily data from the weekly time series. This data manipulation requires some careful

Hello, I'm having problems working with date values in POSIXct format. Here is what I got (eg.lig attached): x <- read.table("eg.txt", sep = ',', col.names=c("ok","time","secs","lig")) # it gives time as factor z <- cbind(x,colsplit(x$time, split="\\s", names=c("date", "clock")))

Apologies for the intrusion. I am a lurker on list. I have been working to convert a digitized signal from a matlab file into R for analysis and other applications. R.matlab is working fine, and it is easy to convert the matlab date-time number (days since year 0) into R date-time numbers (seconds since 1970-01-01). Unfortunately, when I cast the R date-time number into POSIXct format it seems

Hi I like to use "axis.POSIXct" to plot days from 2006 till 2008. But I only have datas for the summer months. Is it possible to get two axis breaks, to have not so long distances without points? thx Christof

Dear all, I am working with a list of objects each of which contains two POSIXct objects (say, $Start and $End) and a number of different data in addition to that. Now an easy way to extract Start times of all object could be sapply(x, "[", "Start") but this converts them all to numeric, and so does sapply(x, "[[", "Start"). lapply preserves the class but

Hello everyone, I'm having a big trouble with which seems to be a bug in as.POSIXct() date-time conversion. I have massive GPS datasets in which each location has it's own date and time attribute. As I convert them to POSIXct format, 1300 cases (of about half a million locations) simply return NA values. I picked up a small sample of failed cases and normal cases to demonstrate the

Hello all, After beating my head against the wall for a few hours, I give up. I have two problems. 1. If I use seq() to generate a POSIXct series that crosses a daylight savings to stardard time change I get two values for the first day of change. The time change is Nov 6,2011. The value for Nov 7 turns into 23:00 on Nov 6, thus two values for Nov 6. (see below) So I put a time value (noon)

Hallo Versuche unter OpenSuse11.2, 64bit sieve zu installieren. Konfig: OpensSuse 11.2, dovecot 1.2.9, postfix , spamassassin, amavis, mysql Wenn ich versucht dovecot sieve zu ?bersetzen bekomme ich immer folgende Fehlermeldung: Mit freundlichem Gru? Carsten Laun-De Lellis Dipl.-Ing. Elektrotechnik Certified Information Systems Auditor (CISA) Hauptstrasse 13 D-67705 Trippstadt Phone:

Hi Could anyone provide me with a start script for dovecot 2.08 that could be placed in /etc/init.d ? I did an installation from the sources and followed the documentation at dovecot.org. Thankx in advance. Mit freundlichem Gru? Carsten Laun-De Lellis Dipl.-Ing. Elektrotechnik Certified Information Systems Auditor (CISA) Hauptstrasse 13 D-67705 Trippstadt Phone: +49

Hi, For a project I try to keep everything in normal time, not daylight saving time, to prevent problem when instruments collected data during the nights when we go from DST to normal time. But sometimes R tricks me and I do not know how to prevent it. This is one example: lights_on = as.POSIXct(c("2011-05-06 04:09:26", "2011-05-07 04:07:53", "2011-05-08

I'm struggling with time zone version when expressed as hours offset from GMT. Can anyone confirm that the behaviour below is incorrect? It seems that the GMT offsets are backwards: > format(as.POSIXct("2011-05-23 17:23:00", tz="Europe/London"),tz="America/New_York",usetz=T) [1] "2011-05-23 12:23:00 EDT" - this works. >

Hi, I'm wondering what's the right value for specifying "America/New_York" time zone on a windows machine? I got my code which specify this time zone on as.POSIXct function work properly with this value on a linux machine. But it keeps giving me complaint on windows. Thank you. Cheers, Robert

I have times and would like to round down to the earliest 30 minute increment. For instance, a time of 2011-04-28 09:02:00 (the as.numeric value = 1303999320) I would like it to be rounded down to: 2011-04-28 09:00:00 (the as.numeric value = 1303999200) Any ideas of how to do this? ----- In theory, practice and theory are the same. In practice, they are not - Albert Einstein -- View this

Is there a quick function that can convert minutes (seconds) after midnight to a time? i.e 670.93 (minutes after midnight) --> 11:10:56.** I know it can be done by hand but I thought there must be a function for this already. Thank you. [[alternative HTML version deleted]]

Dear all, I have a data similar to this: myframe<- data.frame (ID=c("Ernie", "Ernie","Ernie","Ernie"), Timestamp=c("24.09.2012 08:00", "24.09.2012 09:00", "24.09.2012 10:00", "25.09.2012 10:00"), Longitude=c("8.481","8.482","8.483","8.481"),

I have a data frame that contains dates, but when I use as.POSIXlt() I lose the hours on all records. I traced this down to a particuar hour which causes the issue... > as.POSIXlt('2004-10-31 02:00:00') [1] "2004-10-31" > as.POSIXlt('2004-10-31 03:00:00') [1] "2004-10-31 03:00:00" How do I tell as.POSIXlt() to ignore daylight savings and just convert to

Hi , I am trying to convert the date as factor to date using "as.date" function in R. I have the date in the following format 2008-01-01 02:30 I tried to use the following command : as.Date(mydata$Date, format="%y-%m-%d ") Can somebody help me with this ? I was able to convert the format with no hour but getting difficulty with hour included. Thank you.