Re: [R] convert 12 time stamp to 24 hour

2013-02-11 Thread e-letter
On 08/02/2013, e-letter inp...@gmail.com wrote: Readers, For a 12 hour time stamp: testtime-(2013-01-01 01:00:01 PM) testtime [1] 2013-01-01 01:00:01 PM testtime24hour-strftime(testtime,'%H:%M:%S') testtime24hour [1] 01:00:01 Have realised that the object is of type 'character'. When

Re: [R] convert 12 time stamp to 24 hour

2013-02-11 Thread e-letter
Readers, Have since tried to plot converted 24 hour data: testtimedataset V1 1 13:01:41 2 13:02:10 3 13:02:38 4 13:03:05 5 13:03259 testdata-seq(1:5) plot(testdata~testtimedataset) Error in function (formula, data = NULL, subset = NULL, na.action = na.fail, : invalid type (list)

Re: [R] convert 12 time stamp to 24 hour

2013-02-11 Thread Rui Barradas
Hello, You're trying to plot the df, not the column. Try plot(testdata ~ testtimedataset$V1) Hope this helps, Rui Barradas Em 11-02-2013 13:30, e-letter escreveu: Readers, Have since tried to plot converted 24 hour data: testtimedataset V1 1 13:01:41 2 13:02:10 3 13:02:38 4

Re: [R] convert 12 time stamp to 24 hour

2013-02-11 Thread PIKAL Petr
Hi -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- project.org] On Behalf Of e-letter Sent: Monday, February 11, 2013 2:31 PM To: r-help@r-project.org Subject: Re: [R] convert 12 time stamp to 24 hour Readers, Have since tried to plot converted

Re: [R] convert 12 time stamp to 24 hour

2013-02-11 Thread e-letter
On 11/02/2013, PIKAL Petr petr.pi...@precheza.cz wrote: str(testtimedataset) With my real data set, revealed that after conversion, the time series data consists of 'chr' which I guess means character type data, reporting the following error: Error in plot.window(...) : need finite 'xlim'

Re: [R] convert 12 time stamp to 24 hour

2013-02-11 Thread PIKAL Petr
Hi -Original Message- From: e-letter [mailto:inp...@gmail.com] Sent: Monday, February 11, 2013 3:11 PM To: PIKAL Petr Cc: r-help@r-project.org Subject: Re: [R] convert 12 time stamp to 24 hour On 11/02/2013, PIKAL Petr petr.pi...@precheza.cz wrote: str(testtimedataset

[R] convert 12 time stamp to 24 hour

2013-02-08 Thread e-letter
Readers, For a 12 hour time stamp: testtime-(2013-01-01 01:00:01 PM) testtime [1] 2013-01-01 01:00:01 PM testtime24hour-strftime(testtime,'%H:%M:%S') testtime24hour [1] 01:00:01 how to convert to 24 hour format so that the object 'testtime24hour' is: '13:00:01' Thanks. -- r2151

Re: [R] convert 12 time stamp to 24 hour

2013-02-08 Thread Pascal Oettli
Hello, Try this: testtime-(2013-01-01 01:00:01 PM) strptime(testtime, %Y-%m-%d %I:%M:%S %p) [1] 2013-01-01 13:00:01 HTH, Pascal Le 08/02/2013 18:44, e-letter a écrit : Readers, For a 12 hour time stamp: testtime-(2013-01-01 01:00:01 PM) testtime [1] 2013-01-01 01:00:01 PM

Re: [R] convert 12 time stamp to 24 hour

2013-02-08 Thread PIKAL Petr
- From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- project.org] On Behalf Of Pascal Oettli Sent: Friday, February 08, 2013 11:08 AM To: e-letter Cc: r-help@r-project.org Subject: Re: [R] convert 12 time stamp to 24 hour Hello, Try this: testtime-(2013-01-01 01:00:01 PM

Re: [R] convert 12 time stamp to 24 hour

2013-02-08 Thread arun
Hi, library(lubridate)  ymd_hms(testtime)  1 parsed with %Y-%m-%d %I:%M:%S %p #[1] 2013-01-01 13:00:01 UTC A.K. - Original Message - From: e-letter inp...@gmail.com To: r-help@r-project.org Cc: Sent: Friday, February 8, 2013 4:44 AM Subject: [R] convert 12 time stamp to 24 hour