[R] Odp: Date Time conversion

[Petr PIKAL]

Hi


r-help-bounces at r-project.org napsal dne 26.09.2008 16:18:33:

> what am I doing wrong?
> 
> chron(as.character(f), format=c(dates="%m/%d/%y", times="%h:%m"))

Not sure about chron as I do not use it but this

strptime(f, format="%m/%d/%y %H:%M")

works OK. So maybe

chron(as.character(f), format=c(dates="%m/%d/%y", times="%H:%M"))

will work too.

Regards
Petr

> 
> f <- structure(c(51L, 60L, 66L, 87L, 90L, 115L, 23L, 35L, 37L, 6L,
> 12L, 55L, 84L, 96L, 109L, 17L, 29L, 41L, 3L, 74L, 94L, 102L,
> 30L, 8L, 46L, 69L, 107L, 15L, 25L, 39L, 1L, 71L, 95L, 19L, 56L,
> 62L, 76L, 85L, 99L, 111L, 42L, 4L, 52L, 61L, 67L, 91L, 13L, 24L,
> 36L, 38L, 7L, 81L, 82L, 57L, 64L, 100L, 113L, 21L, 33L, 44L,
> 78L, 54L, 73L, 83L, 108L, 16L, 28L, 2L, 58L, 65L, 86L, 101L,
> 32L, 43L, 77L, 93L, 104L, 10L, 48L, 53L, 97L, 110L, 18L, 27L,
> 75L, 92L, 103L, 31L, 9L, 47L, 70L, 72L, 106L, 14L, 26L, 40L,
> 79L, 98L, 112L, 68L, 88L, 105L, 20L, 11L, 49L, 63L, 5L, 80L,
> 50L, 59L, 89L, 114L, 22L, 34L, 45L), .Label = c("1/14/08 12:26",
> "1/15/08 15:25", "1/15/08 16:32", "1/16/08 11:36", "1/16/08 15:29",
> "1/21/08 11:21", "1/21/08 14:18", "1/22/07 13:59", "1/22/07 15:39",
> "1/22/07 18:17", "1/23/07 17:44", "1/23/07 9:17", "10/1/07 13:52",
> "10/22/07 14:38", "10/22/07 15:45", "10/23/07 15:30", "10/23/07 16:44",
> "10/23/07 9:35", "10/25/06 15:29", "10/25/06 17:10", "10/25/07 11:44",
> "10/26/07 8:58", "10/27/07 14:28", "10/29/07 14:43", "11/12/07 10:13",
> "11/12/07 11:49", "11/12/07 13:44", "11/13/07 16:24", "11/13/07 17:23",
> "11/14/06 11:39", "11/14/06 13:10", "11/15/07 10:19", "11/15/07 12:58",
> "11/16/07 10:48", "11/19/07 12:39", "11/19/07 15:15", "12/10/07 12:54",
> "12/10/07 15:42", "12/3/07 11:54", "12/3/07 12:59", "12/4/07 17:45",
> "12/5/07 15:49", "12/6/07 10:52", "12/6/07 12:19", "12/7/07 10:41",
> "2/19/07 14:28", "2/19/07 16:47", "2/20/07 13:20", "2/21/07 9:22",
> "2/22/07 15:41", "2/23/07 14:29", "2/26/07 13:43", "3/13/07 12:51",
> "3/13/07 13:46", "3/13/07 14:47", "3/14/07 11:08", "3/14/07 14:43",
> "3/14/07 15:58", "3/15/07 14:21", "3/16/07 13:30", "3/18/07 11:43",
> "4/11/07 16:09", "4/11/07 17:24", "4/12/07 10:55", "4/12/07 9:15",
> "4/14/07 14:16", "4/16/07 14:31", "4/25/06 15:12", "4/9/07 12:53",
> "4/9/07 14:30", "5/14/07 12:33", "5/14/07 14:01", "5/15/07 15:21",
> "5/15/07 15:56", "5/15/07 8:40", "5/16/07 11:24", "5/16/07 13:14",
> "5/16/07 14:51", "5/16/07 8:03", "5/17/07 15:25", "5/18/07 16:44",
> "5/21/07 14:13", "7/10/07 16:16", "7/10/07 17:54", "7/11/07 15:08",
> "7/12/07 9:39", "7/14/07 13:10", "7/19/06 7:04", "8/10/07 9:32",
> "8/11/07 13:45", "8/13/07 14:27", "8/21/06 14:11", "8/22/06 10:59",
> "8/22/06 9:43", "8/23/06 9:52", "8/7/07 16:46", "8/7/07 9:51",
> "8/8/07 17:45", "8/8/07 8:25", "8/9/07 10:40", "8/9/07 9:27",
> "9/18/06 12:42", "9/18/06 13:56", "9/19/06 16:22", "9/20/06 17:12",
> "9/24/07 14:26", "9/24/07 16:36", "9/25/07 15:43", "9/25/07 16:42",
> "9/25/07 9:44", "9/26/07 12:26", "9/26/07 17:58", "9/27/07 10:46",
> "9/28/07 9:21", "9/29/07 14:55"), class = "factor")
> -- 
> Stephen Sefick
> Research Scientist
> Southeastern Natural Sciences Academy
> 
> Let's not spend our time and resources thinking about things that are
> so little or so large that all they really do for us is puff us up and
> make us feel like gods.  We are mammals, and have not exhausted the
> annoying little problems of being mammals.
> 
>                         -K. Mullis
> 
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