what am I doing wrong?
chron(as.character(f), format=c(dates="%m/%d/%y",
times="%h:%m"))
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
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 > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guidehttp://www.R-project.org/posting-guide.html> and provide commented, minimal, self-contained, reproducible code.
chron uses: - separate arguments for date and time -- not a single one as you have - a separate system for the codes, not the % codes of Date and POSIXt classes If you want to specify the date and time all as one string rather than two arguments, use as.chron instead of chron -- as.chron does use the same percent codes as Date and POSIXct. Notice further that the percent codes used in the question were wrong with respect to hours and minutes and should be as follows: as.chron(as.character(f), "%m/%d/%y %H:%M") Suggest you spend a few minutes going over the relevant article in R News 4/1 -- although that does not cover as.chron used in the above way as that was added a few years after the article was written. On Fri, Sep 26, 2008 at 10:18 AM, stephen sefick <ssefick at gmail.com> wrote:> what am I doing wrong? > > chron(as.character(f), format=c(dates="%m/%d/%y", times="%h:%m")) > > 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 > > ______________________________________________ > R-help at r-project.org mailing list > 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. >