Carlson
Sent: Tuesday, September 30, 2014 10:43 PM
To: tandi perkins; r-help@r-project.org
Subject: Re: [R] Converting factor data into Date-time format
First, use stringsAsFactors=FALSE with the read.csv() function. That
will prevent the conversion to factors. Then try to convert date and
time
Hello R help:
I am
new to this forum so I apologize in advance for any protocol missteps. I
have a data set that is comprised of eight birds with GPS; each of which
transmit everyday at 8:00 am, 4:00 pm, and midnight for 1 year (although I have
some missing relocation's). I am trying to
-4352
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of tandi perkins
Sent: Tuesday, September 30, 2014 12:55 PM
To: r-help@r-project.org
Subject: [R] Converting factor data into Date-time format
Hello R help:
I am
new to this forum
Dear R-user,
I have read a dataset from .csv file into R. This dataset includes one
column containing some data in 'date and time' format, e.g. 'dd/mm/
hh:mm'.
These data were automatically read and saved as 'factor' in R. When I was
trying to produce some plots (such as time series) with
as.POSIXct(as.character(FACTORHERE), format = %d/%m/%Y %H:%M)
Michael
On Tue, Mar 13, 2012 at 12:20 PM, Haojie Yan yhj...@googlemail.com wrote:
Dear R-user,
I have read a dataset from .csv file into R. This dataset includes one
column containing some data in 'date and time' format, e.g.
This is just a little comment to supplement Michael's excellent
solution. If there are even a few (e.g., 5 each) repeated values,
this:
as.POSIXct(as.character(levels(x)), format = %d/%m/%Y %H:%M)[x]
will be substantially faster, with the speed gains strongly associated
with the number of
On Tue, Mar 13, 2012 at 12:20 PM, Haojie Yan yhj...@googlemail.com wrote:
Dear R-user,
I have read a dataset from .csv file into R. This dataset includes one
column containing some data in 'date and time' format, e.g. 'dd/mm/
hh:mm'.
These data were automatically read and saved as
Just a little typo: see below.
On Tue, Mar 13, 2012 at 1:00 PM, Haojie Yan yhj...@googlemail.com wrote:
Dear Michael,
Thanks a lot for your hints.
I have just had a try as below but still got back some error messages as
shown:
The object containing the 'date_time' data is named
No problem.
A pro-tip for future posts: the dput() function creates a plain text
representation of the data in question which is great for email and is
nicely copy-and-pasteable. It wasn't so much a thing here, but for
large or complicated data sets, the regular console printout doesn't
always
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