You have by now seen some other responses on the list. Keeping the list
included will insure you continue to get mulitple eyes looking at the
problem and will benefit others trying to use the answers.
Two comments:
1) Your first format includes a specification for seconds. If that is
nonzero at any point you could have difficulty aligning that data with the
second format. In some cases this may be desirable, in other cases you may
prefer to use some kind of "nearest minute" calculation such as
trunc.POSIXt or round.POSIXt might yield. If you do so, be aware that
those functions always return POSIXlt, and efficient computation is
usually obtained with POSIXct, so convert if you have to.
2) It is not necessary to convert back to character as Jim Holtman
suggests in order to merge the data... working with POSIXct data type
directly will be more efficient. I would warn against using POSIXlt for
merging, though, for poor efficiency reasons.
On Mon, 23 May 2016, Bhaskar Mitra wrote:
Dear Jeff,
Time zone is UTC. No, daylight savings time does not apply.
regards,
bhaskar
On Sun, May 22, 2016 at 4:10 PM, Jeff Newmiller <jdnew...@dcn.davis.ca.us>
wrote:
What time zone are these data in? Does daylight savings
adjustment apply?
--
Sent from my phone. Please excuse my brevity.
On May 22, 2016 9:48:08 AM PDT, Bhaskar Mitra
<bhaskar.kolk...@gmail.com> wrote:
Hello,
My apologies for the earlier posting. There was an error with regard to my
query :
I am trying to merge two text files by using the timestamp
header for both the files:
The first file has the following format for the timestamp:"27-Dec-12 23H
30M 0S"
Timestamp for the second file : 2012-12-27 2330.
I am having problems by converting from one timestamp format to another.
Any suggestions/help in this regard?
regards,
On Sun, May 22, 2016 at 12:40 PM, Bhaskar Mitra <bhaskar.kolk...@gmail.com>
wrote:
Hello, I am trying to merge two text files by using the timestamp
header for both the files:
The first file has the following format for the timestamp:"2012-01-01
23:30:00 UTC"
Timestamp for the second file : 2012-01-01 2330.
I am having problems by converting from one timestamp format to another.
Any suggestions/help in this regard?
regards,
[[alternative HTML version deleted]]
____________________________________________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
---------------------------------------------------------------------------
Jeff Newmiller The ..... ..... Go Live...
DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go...
Live: OO#.. Dead: OO#.. Playing
Research Engineer (Solar/Batteries O.O#. #.O#. with
/Software/Embedded Controllers) .OO#. .OO#. rocks...1k
---------------------------------------------------------------------------
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.