similar to: Strptime

Hello I have a string which contains microseconds, can anyone help on constructing this in to a time object, with the microseconds, that I can take to a ZOO file? Thanks Sean > UK[1,3] [1] "17:09:53.824" > UK[1,1] [1] "2007-12-11 00:00:00" > mydates <- paste( substr(UK[,1], 1, 10), UK[,3]) > mydates[1] [1] "2007-12-11 17:09:53.824" >

Hi All, I am attempting to work with some data from loggers. I have read in a .csv exported from MS Access that already has my dates and times (in 24 clock format), (with StringsAsFactors=FALSE). > head(tdata) LogData date time 1 77.16 2008/04/24 02:00 2 61.78 2008/04/24 04:00 3 75.44 2008/04/24 06:00 4 89.43 2008/04/24

Dear R helpers. I am new to plotting time data using R. wonder how to convert character time info into date in R. I searched over the web but did not find answer. the input character string is something like 03_1993 or 03-1993, so the precision is at month level. I tried the following but failed. #R code below. strptime(c("03_1993"),"%m_%Y")

On Thu, 11 Jan 2001 stephen@anc.ed.ac.uk wrote: > Hi, > > The help file for strptime has the following code which doesn't work > for me: > > ## read in date info in format `ddmmmyyyy' > x <- c("1jan1960", "2jan1960", "31mar1960", "30jul1960") > z <- strptime(x, "%d%b%Y") > > z > [1]

I'm trying to proess date/time fields from files that were given to me to analyze. Any clues what I'm doing wrong with strptime? This seems to fail the same way under Linux or Windows. For ?strptime would it make sense to explain %OS3 somewhere besides the Examples? > # Why does %OS3 work here? > format(Sys.time(), "%H:%M:%S") [1] "16:45:19" >

Dear R Help, I am trying to get fields showing the last day of each month for a monthly closing project. In order to find the last day of the previous month, I subtract the number of days from the current month. For all months my code works; however, for October, my code doesn't work...it returns 2010-09-*29* instead of 2010-09-*30*. format(strptime("2010-10-31",

It looks like a timezone issue, and it's causing confusion to me at least. My original data: gmt <- c("19880101 0000", "19880101 0100", "19880101 0300", "19880101 0400", "19880101 0500", "19880101 0600") These were converted to local dates/times with akst<-strptime(gmt,format="%Y%m%d %H%M")-(3600*9) # because I want

Hi, I am having a trouble parsing dates using strptime() that I get in the format of year and week number. The data looks like this "201127" which means year 2011 and week 27. I would like to graph this using ggplot but then I get a gap between 201054 and 201101 so I thought I would just easily convert it. I tried to use strptime and as.Date and the format string of %Y%W but it seems

Hi Herry, This is probably due to a call to strptime (or similar). No, it doesn't accept %Y-%m as a valid format. Maybe add a constant day to all the dates as that will work: dt<-list(ID=seq(1:24),month=rep(formatC(1:12,flag=0,width=2),2), year=sort(rep(2016:2017,12))) timelst<-paste(unlist(dt['year']),unlist(dt['month']),"01",sep="-")

On Tue, Jan 10, 2017 at 08:13:21PM -0600, Dirk Eddelbuettel wrote: > > On 10 January 2017 at 17:48, frederik at ofb.net wrote: > | Hi R Devel, > | > | I just ran into a corner case with 'strptime'. Recall that the "%OS" > | conversion accepts fractional seconds: > | > | > strptime("17_35_14.01234.mp3","%H_%M_%OS.mp3")$sec > |

Hi I Can't connect to the Oracle database, any tips? Has anybody actually got ROracle up and running on windows? >> unable to find an inherited method for function "dbConnect", for signature "OraDriver" I can happily connect to the same database through RODBC. Oracle client, version 9.2 installed, amongst others. Sean > library(DBI) > library(ROracle)

The example from the help page for strptime has the following oddity: > dates <- c("02/27/92", "02/27/92", "01/14/92", + "02/28/92", "02/01/92") > times <- c("23:03:20", "22:29:56", "01:03:30", + "18:21:03", "16:56:26") > x <-

Hello, I cannot reproduce this behavior and, as documented, the posted code doesn't issue warnings due to a wrong timezone but I'm running sessionInfo() R version 4.0.3 (2020-10-10) Platform: x86_64-pc-linux-gnu (64-bit) Running under: Ubuntu 20.04.1 LTS Matrix products: default BLAS: /usr/lib/x86_64-linux-gnu/blas/libblas.so.3.9.0 LAPACK:

Hi All In trying to correlate some tide gauge data I need to deal with varying timezones. From the documentation on strptime, it seemed that the tz variable might have some effect on the conversion, but I'm not seeing an effect. > strptime("20061201 1:02 PST",format="%Y%m%d %H:%M",tz="PST")+0 [1] "2006-12-01 01:02:00 EST" >

## rw1031 Version 1.3.1 (2001-08-31) ## > version ## _ ## platform i386-pc-mingw32 ## arch x86 ## os Win32 ## system x86, Win32 ## status ## major 1 ## minor 3.1 ## year 2001 ## month 08 ## day 31 ## language R ## The

Dear list members, I have come about a peculiar behavior in R (4.0.2) which I would describe as a bug. On macOS, where `strptime()` raises a warning for invalid timezone identifiers, the following code will continue to raise the original warning with every subsequent call to `strptime()`: ``` # attach a handler for warnings for this call only: tryCatch(strptime('2020-10-31 18:30', format

Hello, when I convert a factor like this a=01.10.2009 into a date using b=strptime(a, format="%d. %m. %Y"). It works very well. But when I try to convert c = 2009/10 into a date using d=strptime(c, format="%Y/%m") it doesnt work at all. I get d=NA. What did I do wrong? Thank you very much for your help! best regards Claudia

strptime() mysteriously adds a day to a date, unless the year is specified. Tested on: Linux (RedHat 6.0) - R version 1.4.1 and R-devel. Windows - R version 1.4.1 Bug isn't found on OpenBSD, R version 1.4.1. Transcript: R : Copyright 2002, The R Development Core Team Version 1.4.1 (2002-01-30) ... > ## BUG: > ## strptime seems to add a day to the request, unless the year > ##

Hello all, I am manipulating a large database with 70,000 records. "strptime" generates a date variable but R treats some of the values as NA. I attach a simple example below. I have spent hours on this problem. Any hint would be greatly appreciated. Many thanks, Edwin Sun # =======start of sample code ============= > x <- c("2005-04-02 19:03:00", "2005-04-03

Hi Frederik, On Mon, 2017-01-16 at 18:20 -0800, frederik at ofb.net wrote: > Hi R Devel, > > I wrote some code which depends on 'strptime' being able to parse an > incomplete date, like this: > > > > > base::strptime("2016","%Y") > [1] "2016-01-14 PST" > > The above works - although it's odd that it gives the month