Need hep for converting date data in POSIXct - R-help

arun

Mon, Jul 8, 2013 1:53 PM #

Hi Laila,
There is only one column from the dput() output.
time1<- structure(list(date....
str(time1)
#'data.frame':??? 20 obs. of? 1 variable:
# $ date: Factor w/ 582 levels "01/01/2009 01:58",..: 370 389 390 409 410 429 430 450 451 471 ..
?time1[,1]<-as.POSIXct(time1[,1],format="%d/%m/%Y %H:%M")
head(time1)
?# ?????????????? date
#1 2008-11-20 12:23:00
#2 2008-11-21 00:33:00
#3 2008-11-21 12:29:00
#4 2008-11-22 00:29:00
#5 2008-11-22 12:39:00
#6 2008-11-23 00:50:00


A.K.

From: laila Aranda Romero <laila_zgz at hotmail.com>
To: arun <smartpink111 at yahoo.com>
Sent: Monday, July 8, 2013 4:29 PM
Subject: RE: [R] Need hep for converting date data in POSIXct

Arun,

?When I type dput(head(time,20), it appears this:

structure(list(date = structure(c(370L, 389L, 390L, 409L, 410L, 
429L, 430L, 450L, 451L, 471L, 472L, 491L, 492L, 511L, 512L, 531L, 
532L, 549L, 550L, 567L), .Label = c("01/01/2009 01:58", "01/01/2009 13:57", 
"01/02/2009 03:49", "01/02/2009 15:51", "01/03/2009 04:40", "01/03/2009 16:37", 
"01/04/2009 04:21", "01/04/2009 16:33", "01/05/2009 04:33", "01/05/2009 16:31", 
"01/06/2009 03:11", "01/06/2009 15:10", "01/07/2009 02:49", "01/07/2009 14:46", 
"01/08/2009 02:44", "01/08/2009 14:44", "01/09/2009 01:05", "01/09/2009 13:14", 
"01/12/2008 00:58", "01/12/2008 12:53", "02/01/2009 02:01", "02/01/2009 13:58", 
"02/02/2009 03:59", "02/02/2009 15:58", "02/03/2009 04:37", "02/03/2009 16:25", 
"02/04/2009 04:30", "02/04/2009 16:30", "02/05/2009 04:33", "02/05/2009 16:31", 
"02/06/2009 02:52", "02/06/2009 14:57", "02/07/2009 02:47", "02/07/2009 14:51", 
"02/08/2009 02:42", "02/08/2009 14:42", "02/09/2009 01:14", "02/09/2009 13:19", 
"03/01/2009 01:52", "03/01/2009 13:57", "03/02/2009 03:55", "03/02/2009 15:56", 
"03/03/2009 04:21", "03/03/2009 16:29", "03/04/2009 04:39", "03/04/2009 16:29", 
"03/05/2009 04:27", "03/05/2009 16:24", "03/06/2009 02:53", "03/06/2009 14:48", 
"03/07/2009 02:55", "03/07/2009 14:54", "03/08/2009 02:36", "03/08/2009 14:28", 
"03/09/2009 01:32", "03/09/2009 13:37", "04/01/2009 01:57", "04/01/2009 13:57", 
"04/02/2009 03:55", "04/02/2009 15:50", "04/03/2009 04:35", "04/03/2009 16:35", 
"04/04/2009 04:28", "04/04/2009 16:36", "04/05/2009 04:43", "04/05/2009 16:43", 
"04/06/2009 02:36", "04/06/2009 14:40", "04/07/2009 02:49", "04/07/2009 14:48", 
"04/08/2009 02:40", "04/08/2009 14:38", "04/09/2009 01:45", "04/09/2009 13:54", 
"05/01/2009 02:02", "05/01/2009 14:01", "05/02/2009 03:51", "05/02/2009 15:49", 
"05/03/2009 04:35", "05/03/2009 16:40", "05/04/2009 04:36", "05/04/2009 16:29", 
"05/05/2009 04:18", "05/05/2009 16:13", "05/06/2009 02:41", "05/06/2009 14:22", 
"05/07/2009 02:50", "05/07/2009 14:57", "05/08/2009 02:31", "05/08/2009 14:28", 
"05/09/2009 02:08", "05/09/2009 14:13", "06/01/2009 01:55", "06/01/2009 13:52", 
"06/02/2009 03:54", "06/02/2009 15:55", "06/03/2009 04:39", "06/03/2009 16:40", 
"06/04/2009 04:20", "06/04/2009 16:19", "06/05/2009 03:56", "06/05/2009 15:49", 
"06/06/2009 02:20", "06/06/2009 14:26", "06/07/2009 03:10", "06/07/2009 15:05", 
"06/08/2009 02:35", "06/08/2009 14:35", "06/09/2009 02:10", "06/09/2009 14:01", 
"06/12/2008 12:27", "07/01/2009 01:54", "07/01/2009 13:38", "07/02/2009 03:49", 
"07/02/2009 15:50", "07/03/2009 04:53", "07/03/2009 16:33", "07/04/2009 04:23", 
"07/04/2009 16:22", "07/05/2009 03:33", "07/05/2009 15:34", "07/06/2009 02:40", 
"07/06/2009 14:59", "07/07/2009 02:52", "07/07/2009 14:55", "07/08/2009 02:34", 
"07/08/2009 14:37", "07/09/2009 01:59", "07/09/2009 13:45", "07/12/2008 00:28", 
"07/12/2008 12:33", "08/01/2009 01:23", "08/01/2009 13:09", "08/02/2009 03:52", 
"08/02/2009 15:51", "08/03/2009 04:33", "08/03/2009 16:47", "08/04/2009 04:26", 
"08/04/2009 16:27", "08/05/2009 03:29", "08/05/2009 15:28", "08/06/2009 03:08", 
"08/06/2009 14:58", "08/07/2009 03:02", "08/07/2009 15:01", "08/08/2009 02:38", 
"08/08/2009 14:31", "08/09/2009 01:32", "08/09/2009 13:19", "08/12/2008 00:27", 
"08/12/2008 12:29", "09/01/2009 00:57", "09/01/2009 12:52", "09/02/2009 03:45", 
"09/02/2009 15:46", "09/03/2009 04:33", "09/03/2009 16:38", "09/04/2009 04:34", 
"09/04/2009 16:25", "09/05/2009 03:27", "09/05/2009 15:13", "09/06/2009 02:50", 
"09/06/2009 14:32", "09/07/2009 03:01", "09/07/2009 15:08", "09/08/2009 02:35", 
"09/08/2009 14:31", "09/09/2009 01:08", "09/09/2009 13:05", "09/12/2008 00:34", 
"09/12/2008 12:32", "10/01/2009 00:54", "10/01/2009 12:48", "10/02/2009 03:51", 
"10/02/2009 15:45", "10/03/2009 04:41", "10/03/2009 16:30", "10/04/2009 04:21", 
"10/04/2009 16:33", "10/05/2009 03:28", "10/05/2009 15:39", "10/06/2009 02:31", 
"10/06/2009 14:50", "10/07/2009 03:03", "10/07/2009 15:03", "10/08/2009 02:43", 
"10/08/2009 14:45", "10/09/2009 00:58", "10/09/2009 12:59", "10/12/2008 00:26", 
"10/12/2008 12:30", "11/02/2009 03:54", "11/02/2009 15:59", "11/03/2009 04:32", 
"11/03/2009 16:36", "11/04/2009 04:38", "11/04/2009 16:35", "11/05/2009 03:29", 
"11/05/2009 15:19", "11/06/2009 02:56", "11/06/2009 14:55", "11/07/2009 02:57", 
"11/07/2009 14:57", "11/08/2009 02:35", "11/08/2009 14:36", "11/09/2009 01:03", 
"11/09/2009 13:08", "12/02/2009 03:54", "12/02/2009 15:55", "12/03/2009 04:36", 
"12/03/2009 16:37", "12/04/2009 04:34", "12/04/2009 16:36", "12/05/2009 03:19", 
"12/05/2009 15:17", "12/06/2009 02:36", "12/06/2009 14:36", "12/07/2009 03:07", 
"12/07/2009 15:14", "12/08/2009 02:38", "12/08/2009 14:35", "12/09/2009 01:04", 
"12/09/2009 13:06", "12/12/2008 12:33", "13/02/2009 04:00", "13/02/2009 15:56", 
"13/03/2009 04:48", "13/03/2009 16:49", "13/04/2009 04:34", "13/04/2009 16:08", 
"13/05/2009 03:02", "13/05/2009 14:55", "13/06/2009 02:31", "13/06/2009 14:30", 
"13/07/2009 03:10", "13/07/2009 15:05", "13/08/2009 02:38", "13/08/2009 14:42", 
"13/09/2009 01:05", "13/09/2009 12:59", "13/12/2008 00:28", "13/12/2008 12:28", 
"14/02/2009 03:56", "14/02/2009 15:56", "14/03/2009 04:46", "14/03/2009 16:41", 
"14/04/2009 04:10", "14/04/2009 16:34", "14/05/2009 02:57", "14/05/2009 15:00", 
"14/06/2009 02:32", "14/06/2009 14:21", "14/07/2009 03:04", "14/07/2009 15:08", 
"14/08/2009 02:45", "14/08/2009 14:43", "14/09/2009 00:59", "14/09/2009 13:03", 
"14/12/2008 00:28", "14/12/2008 12:37", "15/02/2009 03:52", "15/02/2009 16:07", 
"15/03/2009 04:37", "15/03/2009 16:37", "15/04/2009 04:36", "15/04/2009 16:28", 
"15/05/2009 02:58", "15/05/2009 14:58", "15/06/2009 02:23", "15/06/2009 14:22", 
"15/07/2009 03:12", "15/07/2009 15:04", "15/08/2009 02:39", "15/08/2009 14:40", 
"15/09/2009 00:58", "15/09/2009 12:57", "15/12/2008 00:18", "15/12/2008 12:19", 
"16/02/2009 04:26", "16/02/2009 16:29", "16/03/2009 04:48", "16/03/2009 16:42", 
"16/04/2009 04:22", "16/04/2009 16:27", "16/05/2009 02:38", "16/05/2009 14:28", 
"16/06/2009 02:17", "16/06/2009 14:31", "16/07/2009 03:06", "16/07/2009 14:59", 
"16/08/2009 02:37", "16/08/2009 14:37", "16/09/2009 00:56", "16/09/2009 12:55", 
"16/12/2008 00:20", "16/12/2008 12:17", "17/02/2009 04:19", "17/02/2009 16:20", 
"17/03/2009 04:35", "17/03/2009 16:41", "17/04/2009 04:30", "17/04/2009 16:24", 
"17/05/2009 02:20", "17/05/2009 14:21", "17/06/2009 02:46", "17/06/2009 14:46", 
"17/07/2009 02:59", "17/07/2009 15:06", "17/08/2009 02:39", "17/08/2009 14:38", 
"17/09/2009 00:55", "17/09/2009 12:49", "17/12/2008 00:20", "17/12/2008 12:22", 
"18/02/2009 04:22", "18/02/2009 16:18", "18/03/2009 04:48", "18/03/2009 16:43", 
"18/04/2009 04:29", "18/04/2009 16:30", "18/05/2009 02:10", "18/05/2009 14:18", 
"18/06/2009 02:37", "18/06/2009 14:47", "18/07/2009 03:09", "18/07/2009 15:11", 
"18/08/2009 02:40", "18/08/2009 14:19", "18/09/2009 00:51", "18/09/2009 12:49", 
"18/12/2008 00:20", "18/12/2008 12:15", "19/01/2009 13:00", "19/02/2009 04:16", 
"19/02/2009 16:15", "19/03/2009 04:46", "19/03/2009 16:41", "19/04/2009 04:25", 
"19/04/2009 16:28", "19/05/2009 02:14", "19/05/2009 14:16", "19/06/2009 02:41", 
"19/06/2009 14:47", "19/07/2009 03:09", "19/07/2009 15:03", "19/08/2009 02:34", 
"19/08/2009 14:24", "19/09/2009 00:45", "19/09/2009 12:42", "19/12/2008 00:16", 
"19/12/2008 12:16", "20/01/2009 01:23", "20/01/2009 13:53", "20/02/2009 04:24", 
"20/02/2009 16:20", "20/03/2009 04:40", "20/03/2009 16:39", "20/04/2009 04:38", 
"20/04/2009 16:38", "20/05/2009 02:15", "20/05/2009 14:18", "20/06/2009 02:50", 
"20/06/2009 14:46", "20/07/2009 03:05", "20/07/2009 15:06", "20/08/2009 02:29", 
"20/08/2009 14:18", "20/09/2009 00:37", "20/09/2009 12:35", "20/11/2008 12:23", 
"21/01/2009 01:57", "21/01/2009 14:02", "21/02/2009 04:08", "21/02/2009 16:07", 
"21/03/2009 04:34", "21/03/2009 16:34", "21/04/2009 04:33", "21/04/2009 16:29", 
"21/05/2009 02:19", "21/05/2009 14:28", "21/06/2009 02:44", "21/06/2009 14:51", 
"21/07/2009 03:05", "21/07/2009 15:03", "21/08/2009 02:19", "21/08/2009 14:21", 
"21/09/2009 00:30", "21/09/2009 12:32", "21/11/2008 00:33", "21/11/2008 12:29", 
"22/01/2009 02:00", "22/01/2009 14:14", "22/02/2009 04:07", "22/02/2009 15:59", 
"22/03/2009 04:34", "22/03/2009 16:37", "22/04/2009 04:49", "22/04/2009 16:44", 
"22/05/2009 02:29", "22/05/2009 14:44", "22/06/2009 02:50", "22/06/2009 14:47", 
"22/07/2009 02:58", "22/07/2009 14:58", "22/08/2009 02:20", "22/08/2009 14:10", 
"22/09/2009 00:29", "22/09/2009 12:31", "22/11/2008 00:29", "22/11/2008 12:39", 
"23/01/2009 02:36", "23/01/2009 14:52", "23/02/2009 03:56", "23/02/2009 16:01", 
"23/03/2009 04:52", "23/03/2009 16:52", "23/04/2009 04:25", "23/04/2009 16:30", 
"23/05/2009 02:57", "23/05/2009 15:12", "23/06/2009 02:52", "23/06/2009 14:46", 
"23/07/2009 02:55", "23/07/2009 14:49", "23/08/2009 02:04", "23/08/2009 13:53", 
"23/09/2009 00:29", "23/09/2009 12:24", "23/11/2008 00:50", "23/11/2008 12:51", 
"23/12/2008 12:45", "24/01/2009 03:04", "24/01/2009 15:11", "24/02/2009 04:10", 
"24/02/2009 16:08", "24/03/2009 04:41", "24/03/2009 16:32", "24/04/2009 04:34", 
"24/04/2009 16:19", "24/05/2009 03:14", "24/05/2009 15:25", "24/06/2009 02:38", 
"24/06/2009 14:48", "24/07/2009 02:47", "24/07/2009 14:46", "24/08/2009 01:51", 
"24/08/2009 13:48", "24/09/2009 00:21", "24/09/2009 12:16", "24/11/2008 00:44", 
"24/11/2008 12:45", "24/12/2008 01:10", "24/12/2008 13:24", "25/01/2009 03:15", 
"25/01/2009 15:24", "25/02/2009 04:08", "25/02/2009 16:17", "25/03/2009 04:28", 
"25/03/2009 16:30", "25/04/2009 04:13", "25/04/2009 16:19", "25/05/2009 03:21", 
"25/05/2009 15:30", "25/06/2009 02:45", "25/06/2009 14:49", "25/07/2009 02:42", 
"25/07/2009 14:39", "25/08/2009 01:50", "25/08/2009 13:47", "25/09/2009 00:10", 
"25/11/2008 00:40", "25/11/2008 12:40", "25/12/2008 01:18", "25/12/2008 13:39", 
"26/01/2009 03:40", "26/01/2009 15:32", "26/02/2009 04:22", "26/02/2009 16:29", 
"26/03/2009 04:30", "26/03/2009 16:26", "26/04/2009 04:19", "26/04/2009 16:14", 
"26/05/2009 03:26", "26/05/2009 15:32", "26/06/2009 02:48", "26/06/2009 14:45", 
"26/07/2009 02:35", "26/07/2009 14:43", "26/08/2009 01:48", "26/08/2009 13:33", 
"26/11/2008 00:47", "26/11/2008 12:50", "26/12/2008 01:59", "26/12/2008 14:12", 
"27/01/2009 03:31", "27/01/2009 15:44", "27/02/2009 04:36", "27/02/2009 16:43", 
"27/03/2009 04:30", "27/03/2009 16:19", "27/04/2009 04:19", "27/04/2009 16:30", 
"27/05/2009 03:32", "27/05/2009 15:32", "27/06/2009 02:44", "27/06/2009 14:49", 
"27/07/2009 02:42", "27/07/2009 14:30", "27/08/2009 01:29", "27/08/2009 13:21", 
"27/11/2008 00:45", "27/11/2008 12:45", "27/12/2008 02:06", "27/12/2008 14:11", 
"28/01/2009 03:53", "28/01/2009 15:48", "28/02/2009 04:41", "28/02/2009 16:37", 
"28/03/2009 04:15", "28/03/2009 16:14", "28/04/2009 04:33", "28/04/2009 16:32", 
"28/05/2009 03:32", "28/05/2009 15:33", "28/06/2009 02:49", "28/06/2009 14:43", 
"28/07/2009 02:30", "28/07/2009 14:30", "28/08/2009 01:19", "28/08/2009 13:18", 
"28/11/2008 00:48", "28/11/2008 12:48", "28/12/2008 02:01", "28/12/2008 13:54", 
"29/01/2009 03:52", "29/01/2009 16:05", "29/03/2009 04:15", "29/03/2009 16:21", 
"29/04/2009 04:28", "29/04/2009 16:28", "29/05/2009 03:32", "29/05/2009 15:41", 
"29/06/2009 02:46", "29/06/2009 14:49", "29/07/2009 02:27", "29/07/2009 14:43", 
"29/08/2009 01:26", "29/08/2009 13:19", "29/11/2008 00:49", "29/11/2008 12:50", 
"29/12/2008 02:01", "29/12/2008 13:50", "30/01/2009 04:15", "30/01/2009 16:03", 
"30/03/2009 04:30", "30/03/2009 16:33", "30/04/2009 04:29", "30/04/2009 16:26", 
"30/05/2009 03:40", "30/05/2009 15:40", "30/06/2009 02:46", "30/06/2009 14:51", 
"30/07/2009 02:51", "30/07/2009 14:43", "30/08/2009 01:25", "30/08/2009 13:23", 
"30/11/2008 00:50", "30/11/2008 12:53", "30/12/2008 01:50", "30/12/2008 14:03", 
"31/01/2009 04:08", "31/01/2009 16:01", "31/03/2009 04:33", "31/03/2009 16:23", 
"31/05/2009 03:31", "31/05/2009 15:27", "31/07/2009 02:42", "31/07/2009 14:39", 
"31/08/2009 01:22", "31/08/2009 13:08", "31/12/2008 01:56", "31/12/2008 13:53"
), class = "factor")), .Names = "date", row.names = c(NA, 20L
), class = "data.frame")?

I hope?that you're asking for this!!!!! :)
Laila


> Date: Mon, 8 Jul 2013 12:26:41 -0700
> From: smartpink111 at yahoo.com
> Subject: Re: [R] Need hep for converting date data in POSIXct
> To: laila_zgz at hotmail.com
> 
> Hi laila,
> 
> You need to provide the full dput() output.? As I mentioned in my earlier email in Nabble ( which I am not sure you got it), use dput() for a smaller dataset. 
> For eg.
> dput(head(dataset,20))
> 
> 
> 
> 
> 
> ----- Original Message -----
> From: laila <laila_zgz at hotmail.com>
> To: r-help at r-project.org
> Cc: 
> Sent: Monday, July 8, 2013 5:52 AM
> Subject: Re: [R] Need hep for converting date data in POSIXct
> 
> Hi Arun,
> I think that my data has another format. When I type the comand dput(time), it appears the following information:
> structure(list(date = structure(c(696L, 18L, 19L, 43L, 44L, 45L, 
> 67L, 68L, 94L, 95L, 117L, 118L, 141L, 142L, 167L, 168L, 193L.......), .Label = c("01/01/2011 12:32", "01/02/2011 00:49", "01/02/2011 12:54",....), class = "factor")), .Names = "date", row.names = c(NA, 
> 716L), class = "data.frame").? When I tried to convert to POSIXct , it gives me this thing:structure(c(NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real_, NA_real,NA_real_), class = c("POSIXct", "POSIXt"), tzone = "") Script I have done is: library(argosfilter)
> setwd("C:/Users/Usuario/Dropbox/Laila Aranda/PUFGRA")
> Geo =? read.table("2370001_PUFGRA_2009_Gough_000_retarded10_both.trj",header=FALSE,sep = ",", col.names= c("type", "date", "secs", "Trans1",? "Trans2", "lat.sta",? "lat.comp", "long",? "dist", "rumbo", "velocidad",? "confianza"))
> location=subset(Geo, select= c(lat.comp,long))
> time=subset(Geo, select =c(date))
> k<-as.POSIXct( ?time, format= "%d/%m/%y %H:%M") Laila? PS: I've just realised that I made a mistake, because I want to merge two columns not rows. In fact, I have one column: dd/mm/yyyy mm:hh and another column(secs): 40567,87.? I send you a picture of my database.? 
> 
> 
> Date: Sun, 7 Jul 2013 18:10:09 -0700
> From: ml-node+s789695n4671066h81 at n4.nabble.com
> To: laila_zgz at hotmail.com
> Subject: Re: Need hep for converting date data in POSIXct
> 
> 
> 
> ??? Hi,
> 
> I am not sure how your dataset looks like.? If it is like the one below: (otherwise, please provide a reproducible example using ?dput())
> 
> 
> dat1<- read.table(text="
> 
> datetime
> 
> 10/02/2010
> 
> 02:30
> 
> 11/02/2010
> 
> 04:00
> 
> 14/02/2010
> 
> 06:30
> 
> ",sep="",header=TRUE,stringsAsFactors=FALSE)
> 
> 
> lst1<-split(dat1,(seq_along(dat1$datetime)-1)%%2+1)
> 
> dat2<- data.frame(datetime=as.POSIXct(paste(lst1[[1]][,1],lst1[[2]][,1]),format="%d/%m/%Y %H:%M"))
> 
> str(dat2)
> 
> #'data.frame':? ? 3 obs. of? 1 variable:
> 
> # $ datetime: POSIXct, format: "2010-02-10 02:30:00" "2010-02-11 04:00:00" ...
> 
> dat2
> 
> #? ? ? ? ? ???datetime
> 
> #1 2010-02-10 02:30:00
> 
> #2 2010-02-11 04:00:00
> 
> #3 2010-02-14 06:30:00
> 
> 
> 
> #or
> 
> data.frame(datetime=as.POSIXct(paste(dat1[seq(1,nrow(dat1),by=2),1],? dat1[seq(2,nrow(dat1),by=2),1]),format="%d/%m/%Y %H:%M"))
> 
> #? ? ? ? ? ???datetime
> 
> #1 2010-02-10 02:30:00
> 
> #2 2010-02-11 04:00:00
> 
> #3 2010-02-14 06:30:00
> 
> 
> 
> 
> A.K.
> 
> 
> 
> 
> Hey everybody, 
> 
> 
> I am a new user of R software. I don't know how I can merge two rows in 
> 
> one. In fact, I have one row with the date(dd/mm/yyyy) and another with the 
> 
> time (hh:mm) and I would like to get one row with date time in order to 
> 
> convert to POSIXct. How can I do it??
> 
> 
> ______________________________________________
> 
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