从字符向量猜测可能的日期时间格式。
用法
guess_formats(
x,
orders,
locale = Sys.getlocale("LC_TIME"),
preproc_wday = TRUE,
print_matches = FALSE
)参数
- x
-
日期时间的输入向量。
- orders
-
格式命令寻找。请参阅示例。
- locale
-
要使用的区域设置。默认为当前区域设置。
- preproc_wday
-
是否预处理工作日名称。
ymd_hms()系列函数使用的内部优化。如果TRUE，则工作日将相应地替换为 %a 或 %A，因此无需显式提供此格式。 - print_matches
-
主要用于开发目的。如果是
TRUE，则打印匹配模板的矩阵。
例子
x <- c('February 20th 1973',
"february 14, 2004",
"Sunday, May 1, 2000",
"Sunday, May 1, 2000",
"february 14, 04",
'Feb 20th 73',
"January 5 1999 at 7pm",
"jan 3 2010",
"Jan 1, 1999",
"jan 3 10",
"01 3 2010",
"1 3 10",
'1 13 89',
"5/27/1979",
"12/31/99",
"DOB:12/11/00",
"-----------",
'Thu, 1 July 2004 22:30:00',
'Thu, 1st of July 2004 at 22:30:00',
'Thu, 1July 2004 at 22:30:00',
'Thu, 1July2004 22:30:00',
'Thu, 1July04 22:30:00',
"21 Aug 2011, 11:15:34 pm",
"-----------",
"1979-05-27 05:00:59",
"1979-05-27",
"-----------",
"3 jan 2000",
"17 april 85",
"27/5/1979",
'20 01 89',
'00/13/10',
"-------",
"14 12 00",
"03:23:22 pm")
guess_formats(x, "BdY")
#> ObdY ObdY ObdY
#> "%Ob %dth %Y" "%Ob %d, %Y" "%A, %Ob %d, %Y"
#> ObdY ObdY ObdY
#> "%A, %Ob %d, %Y" "%Ob %d %Y" "%Ob %d, %Y"
#> BdY BdY BdY
#> "%B %dth %Y" "%B %d, %Y" "%A, %B %d, %Y"
#> BdY ObdY ObdY
#> "%A, %B %d, %Y" "%Ob %dth %Y" "%Ob %d, %Y"
#> ObdY ObdY ObdY
#> "Sunday, %Ob %d, %Y" "Sunday, %Ob %d, %Y" "%Ob %d %Y"
#> ObdY BdY BdY
#> "%Ob %d, %Y" "%B %dth %Y" "%B %d, %Y"
#> BdY BdY
#> "Sunday, %B %d, %Y" "Sunday, %B %d, %Y"
guess_formats(x, "Bdy")
#> Obdy Obdy Obdy
#> "%Ob %dth %Y" "%Ob %d, %Y" "%A, %Ob %d, %Y"
#> Obdy Obdy Obdy
#> "%A, %Ob %d, %Y" "%Ob %d, %y" "%Ob %dth %y"
#> Obdy Obdy Obdy
#> "%Ob %d %Y" "%Ob %d, %Y" "%Ob %d %y"
#> Bdy Bdy Bdy
#> "%B %dth %Y" "%B %d, %Y" "%A, %B %d, %Y"
#> Bdy Bdy Obdy
#> "%A, %B %d, %Y" "%B %d, %y" "%Ob %dth %Y"
#> Obdy Obdy Obdy
#> "%Ob %d, %Y" "Sunday, %Ob %d, %Y" "Sunday, %Ob %d, %Y"
#> Obdy Obdy Obdy
#> "%Ob %d, %y" "%Ob %dth %y" "%Ob %d %Y"
#> Obdy Obdy Bdy
#> "%Ob %d, %Y" "%Ob %d %y" "%B %dth %Y"
#> Bdy Bdy Bdy
#> "%B %d, %Y" "Sunday, %B %d, %Y" "Sunday, %B %d, %Y"
#> Bdy
#> "%B %d, %y"
## m also matches b and B; y also matches Y
guess_formats(x, "mdy", print_matches = TRUE)
#> Omdy
#> [1,] "February 20th 1973" "%Om %dth %Y"
#> [2,] "february 14, 2004" "%Om %d, %Y"
#> [3,] "Sunday, May 1, 2000" "Sunday, %Om %d, %Y"
#> [4,] "Sunday, May 1, 2000" "Sunday, %Om %d, %Y"
#> [5,] "february 14, 04" "%Om %d, %y"
#> [6,] "Feb 20th 73" "%Om %dth %y"
#> [7,] "January 5 1999 at 7pm" ""
#> [8,] "jan 3 2010" "%Om %d %Y"
#> [9,] "Jan 1, 1999" "%Om %d, %Y"
#> [10,] "jan 3 10" "%Om %d %y"
#> [11,] "01 3 2010" "%Om %d %Y"
#> [12,] "1 3 10" "%Om %d %y"
#> [13,] "1 13 89" "%Om %d %y"
#> [14,] "5/27/1979" "%Om/%d/%Y"
#> [15,] "12/31/99" "%Om/%d/%y"
#> [16,] "DOB:12/11/00" "DOB:%Om/%d/%y"
#> [17,] "-----------" ""
#> [18,] "Thu, 1 July 2004 22:30:00" ""
#> [19,] "Thu, 1st of July 2004 at 22:30:00" ""
#> [20,] "Thu, 1July 2004 at 22:30:00" ""
#> [21,] "Thu, 1July2004 22:30:00" ""
#> [22,] "Thu, 1July04 22:30:00" ""
#> [23,] "21 Aug 2011, 11:15:34 pm" ""
#> [24,] "-----------" ""
#> [25,] "1979-05-27 05:00:59" ""
#> [26,] "1979-05-27" ""
#> [27,] "-----------" ""
#> [28,] "3 jan 2000" ""
#> [29,] "17 april 85" ""
#> [30,] "27/5/1979" ""
#> [31,] "20 01 89" ""
#> [32,] "00/13/10" ""
#> [33,] "-------" ""
#> [34,] "14 12 00" ""
#> [35,] "03:23:22 pm" "%Om:%d:%y pm"
#> mdy
#> [1,] "%B %dth %Y"
#> [2,] "%B %d, %Y"
#> [3,] "Sunday, %b %d, %Y"
#> [4,] "Sunday, %b %d, %Y"
#> [5,] "%B %d, %y"
#> [6,] "%b %dth %y"
#> [7,] ""
#> [8,] "%b %d %Y"
#> [9,] "%b %d, %Y"
#> [10,] "%b %d %y"
#> [11,] "%m %d %Y"
#> [12,] "%m %d %y"
#> [13,] "%m %d %y"
#> [14,] "%m/%d/%Y"
#> [15,] "%m/%d/%y"
#> [16,] "DOB:%m/%d/%y"
#> [17,] ""
#> [18,] ""
#> [19,] ""
#> [20,] ""
#> [21,] ""
#> [22,] ""
#> [23,] ""
#> [24,] ""
#> [25,] ""
#> [26,] ""
#> [27,] ""
#> [28,] ""
#> [29,] ""
#> [30,] ""
#> [31,] ""
#> [32,] ""
#> [33,] ""
#> [34,] ""
#> [35,] "%m:%d:%y pm"
#> Omdy Omdy Omdy
#> "%Om %dth %Y" "%Om %d, %Y" "%A, %Om %d, %Y"
#> Omdy Omdy Omdy
#> "%A, %Om %d, %Y" "%Om %d, %y" "%Om %dth %y"
#> Omdy Omdy Omdy
#> "%Om %d %Y" "%Om %d, %Y" "%Om %d %y"
#> Omdy Omdy Omdy
#> "%Om %d %Y" "%Om %d %y" "%Om %d %y"
#> Omdy Omdy Omdy
#> "%Om/%d/%Y" "%Om/%d/%y" "DOB:%Om/%d/%y"
#> Omdy mdy mdy
#> "%Om:%d:%y pm" "%B %dth %Y" "%B %d, %Y"
#> mdy mdy mdy
#> "%A, %b %d, %Y" "%A, %b %d, %Y" "%B %d, %y"
#> mdy mdy mdy
#> "%b %dth %y" "%b %d %Y" "%b %d, %Y"
#> mdy mdy mdy
#> "%b %d %y" "%m %d %Y" "%m %d %y"
#> mdy mdy mdy
#> "%m %d %y" "%m/%d/%Y" "%m/%d/%y"
#> mdy mdy Omdy
#> "DOB:%m/%d/%y" "%m:%d:%y pm" "%Om %dth %Y"
#> Omdy Omdy Omdy
#> "%Om %d, %Y" "Sunday, %Om %d, %Y" "Sunday, %Om %d, %Y"
#> Omdy Omdy Omdy
#> "%Om %d, %y" "%Om %dth %y" "%Om %d %Y"
#> Omdy Omdy Omdy
#> "%Om %d, %Y" "%Om %d %y" "%Om %d %Y"
#> Omdy Omdy Omdy
#> "%Om %d %y" "%Om %d %y" "%Om/%d/%Y"
#> Omdy Omdy Omdy
#> "%Om/%d/%y" "DOB:%Om/%d/%y" "%Om:%d:%y pm"
#> mdy mdy mdy
#> "%B %dth %Y" "%B %d, %Y" "Sunday, %b %d, %Y"
#> mdy mdy mdy
#> "Sunday, %b %d, %Y" "%B %d, %y" "%b %dth %y"
#> mdy mdy mdy
#> "%b %d %Y" "%b %d, %Y" "%b %d %y"
#> mdy mdy mdy
#> "%m %d %Y" "%m %d %y" "%m %d %y"
#> mdy mdy mdy
#> "%m/%d/%Y" "%m/%d/%y" "DOB:%m/%d/%y"
#> mdy
#> "%m:%d:%y pm"
## T also matches IMSp order
guess_formats(x, "T", print_matches = TRUE)
#> HMSOp
#> [1,] "February 20th 1973" ""
#> [2,] "february 14, 2004" ""
#> [3,] "Sunday, May 1, 2000" ""
#> [4,] "Sunday, May 1, 2000" ""
#> [5,] "february 14, 04" ""
#> [6,] "Feb 20th 73" ""
#> [7,] "January 5 1999 at 7pm" ""
#> [8,] "jan 3 2010" ""
#> [9,] "Jan 1, 1999" ""
#> [10,] "jan 3 10" ""
#> [11,] "01 3 2010" ""
#> [12,] "1 3 10" ""
#> [13,] "1 13 89" ""
#> [14,] "5/27/1979" ""
#> [15,] "12/31/99" ""
#> [16,] "DOB:12/11/00" ""
#> [17,] "-----------" ""
#> [18,] "Thu, 1 July 2004 22:30:00" ""
#> [19,] "Thu, 1st of July 2004 at 22:30:00" ""
#> [20,] "Thu, 1July 2004 at 22:30:00" ""
#> [21,] "Thu, 1July2004 22:30:00" ""
#> [22,] "Thu, 1July04 22:30:00" ""
#> [23,] "21 Aug 2011, 11:15:34 pm" ""
#> [24,] "-----------" ""
#> [25,] "1979-05-27 05:00:59" ""
#> [26,] "1979-05-27" ""
#> [27,] "-----------" ""
#> [28,] "3 jan 2000" ""
#> [29,] "17 april 85" ""
#> [30,] "27/5/1979" ""
#> [31,] "20 01 89" ""
#> [32,] "00/13/10" ""
#> [33,] "-------" ""
#> [34,] "14 12 00" ""
#> [35,] "03:23:22 pm" "%H:%M:%S %Op"
#> T
#> [1,] ""
#> [2,] "february %H, %M%S"
#> [3,] ""
#> [4,] ""
#> [5,] ""
#> [6,] ""
#> [7,] ""
#> [8,] ""
#> [9,] ""
#> [10,] ""
#> [11,] ""
#> [12,] "%H %M %S"
#> [13,] ""
#> [14,] ""
#> [15,] ""
#> [16,] "DOB:%H/%M/%S"
#> [17,] ""
#> [18,] ""
#> [19,] ""
#> [20,] ""
#> [21,] ""
#> [22,] ""
#> [23,] ""
#> [24,] ""
#> [25,] ""
#> [26,] ""
#> [27,] ""
#> [28,] ""
#> [29,] ""
#> [30,] ""
#> [31,] ""
#> [32,] "%H/%M/%S"
#> [33,] ""
#> [34,] "%H %M %S"
#> [35,] "%I:%M:%S %p"
#> HMSOp T T
#> "%H:%M:%S %Op" "february %H, %M%S" "%H %M %S"
#> T T T
#> "DOB:%H/%M/%S" "%H/%M/%S" "%H %M %S"
#> T
#> "%I:%M:%S %p"
## b and B are equivalent and match, both, abreviated and full names
guess_formats(x, c("mdY", "BdY", "Bdy", "bdY", "bdy"), print_matches = TRUE)
#> ObdY
#> [1,] "February 20th 1973" "%Ob %dth %Y"
#> [2,] "february 14, 2004" "%Ob %d, %Y"
#> [3,] "Sunday, May 1, 2000" "Sunday, %Ob %d, %Y"
#> [4,] "Sunday, May 1, 2000" "Sunday, %Ob %d, %Y"
#> [5,] "february 14, 04" ""
#> [6,] "Feb 20th 73" ""
#> [7,] "January 5 1999 at 7pm" ""
#> [8,] "jan 3 2010" "%Ob %d %Y"
#> [9,] "Jan 1, 1999" "%Ob %d, %Y"
#> [10,] "jan 3 10" ""
#> [11,] "01 3 2010" ""
#> [12,] "1 3 10" ""
#> [13,] "1 13 89" ""
#> [14,] "5/27/1979" ""
#> [15,] "12/31/99" ""
#> [16,] "DOB:12/11/00" ""
#> [17,] "-----------" ""
#> [18,] "Thu, 1 July 2004 22:30:00" ""
#> [19,] "Thu, 1st of July 2004 at 22:30:00" ""
#> [20,] "Thu, 1July 2004 at 22:30:00" ""
#> [21,] "Thu, 1July2004 22:30:00" ""
#> [22,] "Thu, 1July04 22:30:00" ""
#> [23,] "21 Aug 2011, 11:15:34 pm" ""
#> [24,] "-----------" ""
#> [25,] "1979-05-27 05:00:59" ""
#> [26,] "1979-05-27" ""
#> [27,] "-----------" ""
#> [28,] "3 jan 2000" ""
#> [29,] "17 april 85" ""
#> [30,] "27/5/1979" ""
#> [31,] "20 01 89" ""
#> [32,] "00/13/10" ""
#> [33,] "-------" ""
#> [34,] "14 12 00" ""
#> [35,] "03:23:22 pm" ""
#> Obdy ObdY Obdy
#> [1,] "%Ob %dth %Y" "%Ob %dth %Y" "%Ob %dth %Y"
#> [2,] "%Ob %d, %Y" "%Ob %d, %Y" "%Ob %d, %Y"
#> [3,] "Sunday, %Ob %d, %Y" "Sunday, %Ob %d, %Y" "Sunday, %Ob %d, %Y"
#> [4,] "Sunday, %Ob %d, %Y" "Sunday, %Ob %d, %Y" "Sunday, %Ob %d, %Y"
#> [5,] "%Ob %d, %y" "" "%Ob %d, %y"
#> [6,] "%Ob %dth %y" "" "%Ob %dth %y"
#> [7,] "" "" ""
#> [8,] "%Ob %d %Y" "%Ob %d %Y" "%Ob %d %Y"
#> [9,] "%Ob %d, %Y" "%Ob %d, %Y" "%Ob %d, %Y"
#> [10,] "%Ob %d %y" "" "%Ob %d %y"
#> [11,] "" "" ""
#> [12,] "" "" ""
#> [13,] "" "" ""
#> [14,] "" "" ""
#> [15,] "" "" ""
#> [16,] "" "" ""
#> [17,] "" "" ""
#> [18,] "" "" ""
#> [19,] "" "" ""
#> [20,] "" "" ""
#> [21,] "" "" ""
#> [22,] "" "" ""
#> [23,] "" "" ""
#> [24,] "" "" ""
#> [25,] "" "" ""
#> [26,] "" "" ""
#> [27,] "" "" ""
#> [28,] "" "" ""
#> [29,] "" "" ""
#> [30,] "" "" ""
#> [31,] "" "" ""
#> [32,] "" "" ""
#> [33,] "" "" ""
#> [34,] "" "" ""
#> [35,] "" "" ""
#> OmdY mdY BdY
#> [1,] "%Om %dth %Y" "%B %dth %Y" "%B %dth %Y"
#> [2,] "%Om %d, %Y" "%B %d, %Y" "%B %d, %Y"
#> [3,] "Sunday, %Om %d, %Y" "Sunday, %b %d, %Y" "Sunday, %B %d, %Y"
#> [4,] "Sunday, %Om %d, %Y" "Sunday, %b %d, %Y" "Sunday, %B %d, %Y"
#> [5,] "" "" ""
#> [6,] "" "" ""
#> [7,] "" "" ""
#> [8,] "%Om %d %Y" "%b %d %Y" ""
#> [9,] "%Om %d, %Y" "%b %d, %Y" ""
#> [10,] "" "" ""
#> [11,] "%Om %d %Y" "%m %d %Y" ""
#> [12,] "" "" ""
#> [13,] "" "" ""
#> [14,] "%Om/%d/%Y" "%m/%d/%Y" ""
#> [15,] "" "" ""
#> [16,] "" "" ""
#> [17,] "" "" ""
#> [18,] "" "" ""
#> [19,] "" "" ""
#> [20,] "" "" ""
#> [21,] "" "" ""
#> [22,] "" "" ""
#> [23,] "" "" ""
#> [24,] "" "" ""
#> [25,] "" "" ""
#> [26,] "" "" ""
#> [27,] "" "" ""
#> [28,] "" "" ""
#> [29,] "" "" ""
#> [30,] "" "" ""
#> [31,] "" "" ""
#> [32,] "" "" ""
#> [33,] "" "" ""
#> [34,] "" "" ""
#> [35,] "" "" ""
#> Bdy bdY bdy
#> [1,] "%B %dth %Y" "%B %dth %Y" "%B %dth %Y"
#> [2,] "%B %d, %Y" "%B %d, %Y" "%B %d, %Y"
#> [3,] "Sunday, %B %d, %Y" "Sunday, %b %d, %Y" "Sunday, %b %d, %Y"
#> [4,] "Sunday, %B %d, %Y" "Sunday, %b %d, %Y" "Sunday, %b %d, %Y"
#> [5,] "%B %d, %y" "" "%B %d, %y"
#> [6,] "" "" "%b %dth %y"
#> [7,] "" "" ""
#> [8,] "" "%b %d %Y" "%b %d %Y"
#> [9,] "" "%b %d, %Y" "%b %d, %Y"
#> [10,] "" "" "%b %d %y"
#> [11,] "" "" ""
#> [12,] "" "" ""
#> [13,] "" "" ""
#> [14,] "" "" ""
#> [15,] "" "" ""
#> [16,] "" "" ""
#> [17,] "" "" ""
#> [18,] "" "" ""
#> [19,] "" "" ""
#> [20,] "" "" ""
#> [21,] "" "" ""
#> [22,] "" "" ""
#> [23,] "" "" ""
#> [24,] "" "" ""
#> [25,] "" "" ""
#> [26,] "" "" ""
#> [27,] "" "" ""
#> [28,] "" "" ""
#> [29,] "" "" ""
#> [30,] "" "" ""
#> [31,] "" "" ""
#> [32,] "" "" ""
#> [33,] "" "" ""
#> [34,] "" "" ""
#> [35,] "" "" ""
#> ObdY ObdY ObdY
#> "%Ob %dth %Y" "%Ob %d, %Y" "%A, %Ob %d, %Y"
#> ObdY ObdY ObdY
#> "%A, %Ob %d, %Y" "%Ob %d %Y" "%Ob %d, %Y"
#> Obdy Obdy Obdy
#> "%Ob %dth %Y" "%Ob %d, %Y" "%A, %Ob %d, %Y"
#> Obdy Obdy Obdy
#> "%A, %Ob %d, %Y" "%Ob %d, %y" "%Ob %dth %y"
#> Obdy Obdy Obdy
#> "%Ob %d %Y" "%Ob %d, %Y" "%Ob %d %y"
#> ObdY ObdY ObdY
#> "%Ob %dth %Y" "%Ob %d, %Y" "%A, %Ob %d, %Y"
#> ObdY ObdY ObdY
#> "%A, %Ob %d, %Y" "%Ob %d %Y" "%Ob %d, %Y"
#> Obdy Obdy Obdy
#> "%Ob %dth %Y" "%Ob %d, %Y" "%A, %Ob %d, %Y"
#> Obdy Obdy Obdy
#> "%A, %Ob %d, %Y" "%Ob %d, %y" "%Ob %dth %y"
#> Obdy Obdy Obdy
#> "%Ob %d %Y" "%Ob %d, %Y" "%Ob %d %y"
#> OmdY OmdY OmdY
#> "%Om %dth %Y" "%Om %d, %Y" "%A, %Om %d, %Y"
#> OmdY OmdY OmdY
#> "%A, %Om %d, %Y" "%Om %d %Y" "%Om %d, %Y"
#> OmdY OmdY mdY
#> "%Om %d %Y" "%Om/%d/%Y" "%B %dth %Y"
#> mdY mdY mdY
#> "%B %d, %Y" "%A, %b %d, %Y" "%A, %b %d, %Y"
#> mdY mdY mdY
#> "%b %d %Y" "%b %d, %Y" "%m %d %Y"
#> mdY BdY BdY
#> "%m/%d/%Y" "%B %dth %Y" "%B %d, %Y"
#> BdY BdY Bdy
#> "%A, %B %d, %Y" "%A, %B %d, %Y" "%B %dth %Y"
#> Bdy Bdy Bdy
#> "%B %d, %Y" "%A, %B %d, %Y" "%A, %B %d, %Y"
#> Bdy bdY bdY
#> "%B %d, %y" "%B %dth %Y" "%B %d, %Y"
#> bdY bdY bdY
#> "%A, %b %d, %Y" "%A, %b %d, %Y" "%b %d %Y"
#> bdY bdy bdy
#> "%b %d, %Y" "%B %dth %Y" "%B %d, %Y"
#> bdy bdy bdy
#> "%A, %b %d, %Y" "%A, %b %d, %Y" "%B %d, %y"
#> bdy bdy bdy
#> "%b %dth %y" "%b %d %Y" "%b %d, %Y"
#> bdy ObdY ObdY
#> "%b %d %y" "%Ob %dth %Y" "%Ob %d, %Y"
#> ObdY ObdY ObdY
#> "Sunday, %Ob %d, %Y" "Sunday, %Ob %d, %Y" "%Ob %d %Y"
#> ObdY Obdy Obdy
#> "%Ob %d, %Y" "%Ob %dth %Y" "%Ob %d, %Y"
#> Obdy Obdy Obdy
#> "Sunday, %Ob %d, %Y" "Sunday, %Ob %d, %Y" "%Ob %d, %y"
#> Obdy Obdy Obdy
#> "%Ob %dth %y" "%Ob %d %Y" "%Ob %d, %Y"
#> Obdy ObdY ObdY
#> "%Ob %d %y" "%Ob %dth %Y" "%Ob %d, %Y"
#> ObdY ObdY ObdY
#> "Sunday, %Ob %d, %Y" "Sunday, %Ob %d, %Y" "%Ob %d %Y"
#> ObdY Obdy Obdy
#> "%Ob %d, %Y" "%Ob %dth %Y" "%Ob %d, %Y"
#> Obdy Obdy Obdy
#> "Sunday, %Ob %d, %Y" "Sunday, %Ob %d, %Y" "%Ob %d, %y"
#> Obdy Obdy Obdy
#> "%Ob %dth %y" "%Ob %d %Y" "%Ob %d, %Y"
#> Obdy OmdY OmdY
#> "%Ob %d %y" "%Om %dth %Y" "%Om %d, %Y"
#> OmdY OmdY OmdY
#> "Sunday, %Om %d, %Y" "Sunday, %Om %d, %Y" "%Om %d %Y"
#> OmdY OmdY OmdY
#> "%Om %d, %Y" "%Om %d %Y" "%Om/%d/%Y"
#> mdY mdY mdY
#> "%B %dth %Y" "%B %d, %Y" "Sunday, %b %d, %Y"
#> mdY mdY mdY
#> "Sunday, %b %d, %Y" "%b %d %Y" "%b %d, %Y"
#> mdY mdY BdY
#> "%m %d %Y" "%m/%d/%Y" "%B %dth %Y"
#> BdY BdY BdY
#> "%B %d, %Y" "Sunday, %B %d, %Y" "Sunday, %B %d, %Y"
#> Bdy Bdy Bdy
#> "%B %dth %Y" "%B %d, %Y" "Sunday, %B %d, %Y"
#> Bdy Bdy bdY
#> "Sunday, %B %d, %Y" "%B %d, %y" "%B %dth %Y"
#> bdY bdY bdY
#> "%B %d, %Y" "Sunday, %b %d, %Y" "Sunday, %b %d, %Y"
#> bdY bdY bdy
#> "%b %d %Y" "%b %d, %Y" "%B %dth %Y"
#> bdy bdy bdy
#> "%B %d, %Y" "Sunday, %b %d, %Y" "Sunday, %b %d, %Y"
#> bdy bdy bdy
#> "%B %d, %y" "%b %dth %y" "%b %d %Y"
#> bdy bdy
#> "%b %d, %Y" "%b %d %y"
guess_formats(x, c("dmy", "dbY", "dBy", "dBY"), print_matches = TRUE)
#> dObY dOby
#> [1,] "February 20th 1973" "" ""
#> [2,] "february 14, 2004" "" ""
#> [3,] "Sunday, May 1, 2000" "" ""
#> [4,] "Sunday, May 1, 2000" "" ""
#> [5,] "february 14, 04" "" ""
#> [6,] "Feb 20th 73" "" ""
#> [7,] "January 5 1999 at 7pm" "" ""
#> [8,] "jan 3 2010" "" ""
#> [9,] "Jan 1, 1999" "" ""
#> [10,] "jan 3 10" "" ""
#> [11,] "01 3 2010" "" ""
#> [12,] "1 3 10" "" ""
#> [13,] "1 13 89" "" ""
#> [14,] "5/27/1979" "" ""
#> [15,] "12/31/99" "" ""
#> [16,] "DOB:12/11/00" "" ""
#> [17,] "-----------" "" ""
#> [18,] "Thu, 1 July 2004 22:30:00" "" ""
#> [19,] "Thu, 1st of July 2004 at 22:30:00" "" ""
#> [20,] "Thu, 1July 2004 at 22:30:00" "" ""
#> [21,] "Thu, 1July2004 22:30:00" "" ""
#> [22,] "Thu, 1July04 22:30:00" "" ""
#> [23,] "21 Aug 2011, 11:15:34 pm" "" ""
#> [24,] "-----------" "" ""
#> [25,] "1979-05-27 05:00:59" "" ""
#> [26,] "1979-05-27" "" ""
#> [27,] "-----------" "" ""
#> [28,] "3 jan 2000" "%d %Ob %Y" "%d %Ob %Y"
#> [29,] "17 april 85" "" "%d %Ob %y"
#> [30,] "27/5/1979" "" ""
#> [31,] "20 01 89" "" ""
#> [32,] "00/13/10" "" ""
#> [33,] "-------" "" ""
#> [34,] "14 12 00" "" ""
#> [35,] "03:23:22 pm" "" ""
#> dObY dOmy dmy dbY dBy
#> [1,] "" "" "" "" ""
#> [2,] "" "" "" "" ""
#> [3,] "" "" "" "" ""
#> [4,] "" "" "" "" ""
#> [5,] "" "" "" "" ""
#> [6,] "" "" "" "" ""
#> [7,] "" "" "" "" ""
#> [8,] "" "" "" "" ""
#> [9,] "" "" "" "" ""
#> [10,] "" "" "" "" ""
#> [11,] "" "%d %Om %Y" "%d %m %Y" "" ""
#> [12,] "" "%d %Om %y" "%d %m %y" "" ""
#> [13,] "" "" "" "" ""
#> [14,] "" "" "" "" ""
#> [15,] "" "" "" "" ""
#> [16,] "" "DOB:%d/%Om/%y" "DOB:%d/%m/%y" "" ""
#> [17,] "" "" "" "" ""
#> [18,] "" "" "" "" ""
#> [19,] "" "" "" "" ""
#> [20,] "" "" "" "" ""
#> [21,] "" "" "" "" ""
#> [22,] "" "" "" "" ""
#> [23,] "" "" "" "" ""
#> [24,] "" "" "" "" ""
#> [25,] "" "" "" "" ""
#> [26,] "" "" "" "" ""
#> [27,] "" "" "" "" ""
#> [28,] "%d %Ob %Y" "%d %Om %Y" "%d %b %Y" "%d %b %Y" ""
#> [29,] "" "%d %Om %y" "%d %B %y" "" "%d %B %y"
#> [30,] "" "%d/%Om/%Y" "%d/%m/%Y" "" ""
#> [31,] "" "%d %Om %y" "%d %m %y" "" ""
#> [32,] "" "" "" "" ""
#> [33,] "" "" "" "" ""
#> [34,] "" "%d %Om %y" "%d %m %y" "" ""
#> [35,] "" "" "" "" ""
#> dBY
#> [1,] ""
#> [2,] ""
#> [3,] ""
#> [4,] ""
#> [5,] ""
#> [6,] ""
#> [7,] ""
#> [8,] ""
#> [9,] ""
#> [10,] ""
#> [11,] ""
#> [12,] ""
#> [13,] ""
#> [14,] ""
#> [15,] ""
#> [16,] ""
#> [17,] ""
#> [18,] ""
#> [19,] ""
#> [20,] ""
#> [21,] ""
#> [22,] ""
#> [23,] ""
#> [24,] ""
#> [25,] ""
#> [26,] ""
#> [27,] ""
#> [28,] ""
#> [29,] ""
#> [30,] ""
#> [31,] ""
#> [32,] ""
#> [33,] ""
#> [34,] ""
#> [35,] ""
#> dObY dOby dOby dObY
#> "%d %Ob %Y" "%d %Ob %Y" "%d %Ob %y" "%d %Ob %Y"
#> dOmy dOmy dOmy dOmy
#> "%d %Om %Y" "%d %Om %y" "DOB:%d/%Om/%y" "%d %Om %Y"
#> dOmy dOmy dOmy dOmy
#> "%d %Om %y" "%d/%Om/%Y" "%d %Om %y" "%d %Om %y"
#> dmy dmy dmy dmy
#> "%d %m %Y" "%d %m %y" "DOB:%d/%m/%y" "%d %b %Y"
#> dmy dmy dmy dmy
#> "%d %B %y" "%d/%m/%Y" "%d %m %y" "%d %m %y"
#> dbY dBy
#> "%d %b %Y" "%d %B %y"
guess_formats(x, c("dBY HMS", "dbY HMS", "dmyHMS", "BdY H"), print_matches = TRUE)
#>
#> [1,] "February 20th 1973"
#> [2,] "february 14, 2004"
#> [3,] "Sunday, May 1, 2000"
#> [4,] "Sunday, May 1, 2000"
#> [5,] "february 14, 04"
#> [6,] "Feb 20th 73"
#> [7,] "January 5 1999 at 7pm"
#> [8,] "jan 3 2010"
#> [9,] "Jan 1, 1999"
#> [10,] "jan 3 10"
#> [11,] "01 3 2010"
#> [12,] "1 3 10"
#> [13,] "1 13 89"
#> [14,] "5/27/1979"
#> [15,] "12/31/99"
#> [16,] "DOB:12/11/00"
#> [17,] "-----------"
#> [18,] "Thu, 1 July 2004 22:30:00"
#> [19,] "Thu, 1st of July 2004 at 22:30:00"
#> [20,] "Thu, 1July 2004 at 22:30:00"
#> [21,] "Thu, 1July2004 22:30:00"
#> [22,] "Thu, 1July04 22:30:00"
#> [23,] "21 Aug 2011, 11:15:34 pm"
#> [24,] "-----------"
#> [25,] "1979-05-27 05:00:59"
#> [26,] "1979-05-27"
#> [27,] "-----------"
#> [28,] "3 jan 2000"
#> [29,] "17 april 85"
#> [30,] "27/5/1979"
#> [31,] "20 01 89"
#> [32,] "00/13/10"
#> [33,] "-------"
#> [34,] "14 12 00"
#> [35,] "03:23:22 pm"
#> dObYHMS dObYHMS
#> [1,] "" ""
#> [2,] "" ""
#> [3,] "" ""
#> [4,] "" ""
#> [5,] "" ""
#> [6,] "" ""
#> [7,] "" ""
#> [8,] "" ""
#> [9,] "" ""
#> [10,] "" ""
#> [11,] "" ""
#> [12,] "" ""
#> [13,] "" ""
#> [14,] "" ""
#> [15,] "" ""
#> [16,] "" ""
#> [17,] "" ""
#> [18,] "Thu, %d %Ob %Y %H:%M:%S" "Thu, %d %Ob %Y %H:%M:%S"
#> [19,] "Thu, %dst of %Ob %Y at %H:%M:%S" "Thu, %dst of %Ob %Y at %H:%M:%S"
#> [20,] "Thu, %d%Ob %Y at %H:%M:%S" "Thu, %d%Ob %Y at %H:%M:%S"
#> [21,] "Thu, %d%Ob%Y %H:%M:%S" "Thu, %d%Ob%Y %H:%M:%S"
#> [22,] "" ""
#> [23,] "%d %Ob %Y, %H:%M:%S pm" "%d %Ob %Y, %H:%M:%S pm"
#> [24,] "" ""
#> [25,] "" ""
#> [26,] "" ""
#> [27,] "" ""
#> [28,] "" ""
#> [29,] "" ""
#> [30,] "" ""
#> [31,] "" ""
#> [32,] "" ""
#> [33,] "" ""
#> [34,] "" ""
#> [35,] "" ""
#> ObdYH dOmyHMS
#> [1,] "" ""
#> [2,] "" ""
#> [3,] "" ""
#> [4,] "" ""
#> [5,] "" ""
#> [6,] "" ""
#> [7,] "%Ob %d %Y at %Hpm" ""
#> [8,] "" ""
#> [9,] "" ""
#> [10,] "" ""
#> [11,] "" ""
#> [12,] "" ""
#> [13,] "" ""
#> [14,] "" ""
#> [15,] "" ""
#> [16,] "" ""
#> [17,] "" ""
#> [18,] "" "Thu, %d %Om %Y %H:%M:%S"
#> [19,] "" "Thu, %dst of %Om %Y at %H:%M:%S"
#> [20,] "" "Thu, %d%Om %Y at %H:%M:%S"
#> [21,] "" "Thu, %d%Om%Y %H:%M:%S"
#> [22,] "" "Thu, %d%Om%y %H:%M:%S"
#> [23,] "" "%d %Om %Y, %H:%M:%S pm"
#> [24,] "" ""
#> [25,] "" ""
#> [26,] "" ""
#> [27,] "" ""
#> [28,] "" ""
#> [29,] "" ""
#> [30,] "" ""
#> [31,] "" ""
#> [32,] "" ""
#> [33,] "" ""
#> [34,] "" ""
#> [35,] "" ""
#> dBYHMS dbYHMS
#> [1,] "" ""
#> [2,] "" ""
#> [3,] "" ""
#> [4,] "" ""
#> [5,] "" ""
#> [6,] "" ""
#> [7,] "" ""
#> [8,] "" ""
#> [9,] "" ""
#> [10,] "" ""
#> [11,] "" ""
#> [12,] "" ""
#> [13,] "" ""
#> [14,] "" ""
#> [15,] "" ""
#> [16,] "" ""
#> [17,] "" ""
#> [18,] "Thu, %d %B %Y %H:%M:%S" "Thu, %d %B %Y %H:%M:%S"
#> [19,] "Thu, %dst of %B %Y at %H:%M:%S" "Thu, %dst of %B %Y at %H:%M:%S"
#> [20,] "Thu, %d%B %Y at %H:%M:%S" "Thu, %d%B %Y at %H:%M:%S"
#> [21,] "Thu, %d%B%Y %H:%M:%S" "Thu, %d%B%Y %H:%M:%S"
#> [22,] "" ""
#> [23,] "" "%d %b %Y, %H:%M:%S pm"
#> [24,] "" ""
#> [25,] "" ""
#> [26,] "" ""
#> [27,] "" ""
#> [28,] "" ""
#> [29,] "" ""
#> [30,] "" ""
#> [31,] "" ""
#> [32,] "" ""
#> [33,] "" ""
#> [34,] "" ""
#> [35,] "" ""
#> dmyHMS BdYH
#> [1,] "" ""
#> [2,] "" ""
#> [3,] "" ""
#> [4,] "" ""
#> [5,] "" ""
#> [6,] "" ""
#> [7,] "" "%B %d %Y at %Hpm"
#> [8,] "" ""
#> [9,] "" ""
#> [10,] "" ""
#> [11,] "" ""
#> [12,] "" ""
#> [13,] "" ""
#> [14,] "" ""
#> [15,] "" ""
#> [16,] "" ""
#> [17,] "" ""
#> [18,] "Thu, %d %B %Y %H:%M:%S" ""
#> [19,] "Thu, %dst of %B %Y at %H:%M:%S" ""
#> [20,] "Thu, %d%B %Y at %H:%M:%S" ""
#> [21,] "Thu, %d%B%Y %H:%M:%S" ""
#> [22,] "Thu, %d%B%y %H:%M:%S" ""
#> [23,] "%d %b %Y, %H:%M:%S pm" ""
#> [24,] "" ""
#> [25,] "" ""
#> [26,] "" ""
#> [27,] "" ""
#> [28,] "" ""
#> [29,] "" ""
#> [30,] "" ""
#> [31,] "" ""
#> [32,] "" ""
#> [33,] "" ""
#> [34,] "" ""
#> [35,] "" ""
#> dObYHMS dObYHMS
#> "%a, %d %Ob %Y %H:%M:%S" "%a, %dst of %Ob %Y at %H:%M:%S"
#> dObYHMS dObYHMS
#> "%a, %d%Ob %Y at %H:%M:%S" "%a, %d%Ob%Y %H:%M:%S"
#> dObYHMS dObYHMS
#> "%d %Ob %Y, %H:%M:%S pm" "%a, %d %Ob %Y %H:%M:%S"
#> dObYHMS dObYHMS
#> "%a, %dst of %Ob %Y at %H:%M:%S" "%a, %d%Ob %Y at %H:%M:%S"
#> dObYHMS dObYHMS
#> "%a, %d%Ob%Y %H:%M:%S" "%d %Ob %Y, %H:%M:%S pm"
#> ObdYH dOmyHMS
#> "%Ob %d %Y at %Hpm" "%a, %d %Om %Y %H:%M:%S"
#> dOmyHMS dOmyHMS
#> "%a, %dst of %Om %Y at %H:%M:%S" "%a, %d%Om %Y at %H:%M:%S"
#> dOmyHMS dOmyHMS
#> "%a, %d%Om%Y %H:%M:%S" "%a, %d%Om%y %H:%M:%S"
#> dOmyHMS dBYHMS
#> "%d %Om %Y, %H:%M:%S pm" "%a, %d %B %Y %H:%M:%S"
#> dBYHMS dBYHMS
#> "%a, %dst of %B %Y at %H:%M:%S" "%a, %d%B %Y at %H:%M:%S"
#> dBYHMS dbYHMS
#> "%a, %d%B%Y %H:%M:%S" "%a, %d %B %Y %H:%M:%S"
#> dbYHMS dbYHMS
#> "%a, %dst of %B %Y at %H:%M:%S" "%a, %d%B %Y at %H:%M:%S"
#> dbYHMS dbYHMS
#> "%a, %d%B%Y %H:%M:%S" "%d %b %Y, %H:%M:%S pm"
#> dmyHMS dmyHMS
#> "%a, %d %B %Y %H:%M:%S" "%a, %dst of %B %Y at %H:%M:%S"
#> dmyHMS dmyHMS
#> "%a, %d%B %Y at %H:%M:%S" "%a, %d%B%Y %H:%M:%S"
#> dmyHMS dmyHMS
#> "%a, %d%B%y %H:%M:%S" "%d %b %Y, %H:%M:%S pm"
#> BdYH dObYHMS
#> "%B %d %Y at %Hpm" "Thu, %d %Ob %Y %H:%M:%S"
#> dObYHMS dObYHMS
#> "Thu, %dst of %Ob %Y at %H:%M:%S" "Thu, %d%Ob %Y at %H:%M:%S"
#> dObYHMS dObYHMS
#> "Thu, %d%Ob%Y %H:%M:%S" "%d %Ob %Y, %H:%M:%S pm"
#> dObYHMS dObYHMS
#> "Thu, %d %Ob %Y %H:%M:%S" "Thu, %dst of %Ob %Y at %H:%M:%S"
#> dObYHMS dObYHMS
#> "Thu, %d%Ob %Y at %H:%M:%S" "Thu, %d%Ob%Y %H:%M:%S"
#> dObYHMS ObdYH
#> "%d %Ob %Y, %H:%M:%S pm" "%Ob %d %Y at %Hpm"
#> dOmyHMS dOmyHMS
#> "Thu, %d %Om %Y %H:%M:%S" "Thu, %dst of %Om %Y at %H:%M:%S"
#> dOmyHMS dOmyHMS
#> "Thu, %d%Om %Y at %H:%M:%S" "Thu, %d%Om%Y %H:%M:%S"
#> dOmyHMS dOmyHMS
#> "Thu, %d%Om%y %H:%M:%S" "%d %Om %Y, %H:%M:%S pm"
#> dBYHMS dBYHMS
#> "Thu, %d %B %Y %H:%M:%S" "Thu, %dst of %B %Y at %H:%M:%S"
#> dBYHMS dBYHMS
#> "Thu, %d%B %Y at %H:%M:%S" "Thu, %d%B%Y %H:%M:%S"
#> dbYHMS dbYHMS
#> "Thu, %d %B %Y %H:%M:%S" "Thu, %dst of %B %Y at %H:%M:%S"
#> dbYHMS dbYHMS
#> "Thu, %d%B %Y at %H:%M:%S" "Thu, %d%B%Y %H:%M:%S"
#> dbYHMS dmyHMS
#> "%d %b %Y, %H:%M:%S pm" "Thu, %d %B %Y %H:%M:%S"
#> dmyHMS dmyHMS
#> "Thu, %dst of %B %Y at %H:%M:%S" "Thu, %d%B %Y at %H:%M:%S"
#> dmyHMS dmyHMS
#> "Thu, %d%B%Y %H:%M:%S" "Thu, %d%B%y %H:%M:%S"
#> dmyHMS BdYH
#> "%d %b %Y, %H:%M:%S pm" "%B %d %Y at %Hpm"
guess_formats(x, c("ymd HMS"), print_matches = TRUE)
#> yOmdHMS
#> [1,] "February 20th 1973" ""
#> [2,] "february 14, 2004" ""
#> [3,] "Sunday, May 1, 2000" ""
#> [4,] "Sunday, May 1, 2000" ""
#> [5,] "february 14, 04" ""
#> [6,] "Feb 20th 73" ""
#> [7,] "January 5 1999 at 7pm" ""
#> [8,] "jan 3 2010" ""
#> [9,] "Jan 1, 1999" ""
#> [10,] "jan 3 10" ""
#> [11,] "01 3 2010" ""
#> [12,] "1 3 10" ""
#> [13,] "1 13 89" ""
#> [14,] "5/27/1979" ""
#> [15,] "12/31/99" ""
#> [16,] "DOB:12/11/00" ""
#> [17,] "-----------" ""
#> [18,] "Thu, 1 July 2004 22:30:00" ""
#> [19,] "Thu, 1st of July 2004 at 22:30:00" ""
#> [20,] "Thu, 1July 2004 at 22:30:00" ""
#> [21,] "Thu, 1July2004 22:30:00" ""
#> [22,] "Thu, 1July04 22:30:00" ""
#> [23,] "21 Aug 2011, 11:15:34 pm" ""
#> [24,] "-----------" ""
#> [25,] "1979-05-27 05:00:59" "%Y-%Om-%d %H:%M:%S"
#> [26,] "1979-05-27" ""
#> [27,] "-----------" ""
#> [28,] "3 jan 2000" ""
#> [29,] "17 april 85" ""
#> [30,] "27/5/1979" ""
#> [31,] "20 01 89" ""
#> [32,] "00/13/10" ""
#> [33,] "-------" ""
#> [34,] "14 12 00" ""
#> [35,] "03:23:22 pm" ""
#> ymdHMS
#> [1,] ""
#> [2,] ""
#> [3,] ""
#> [4,] ""
#> [5,] ""
#> [6,] ""
#> [7,] ""
#> [8,] ""
#> [9,] ""
#> [10,] ""
#> [11,] ""
#> [12,] ""
#> [13,] ""
#> [14,] ""
#> [15,] ""
#> [16,] ""
#> [17,] ""
#> [18,] ""
#> [19,] ""
#> [20,] ""
#> [21,] ""
#> [22,] ""
#> [23,] ""
#> [24,] ""
#> [25,] "%Y-%m-%d %H:%M:%S"
#> [26,] ""
#> [27,] ""
#> [28,] ""
#> [29,] ""
#> [30,] ""
#> [31,] ""
#> [32,] ""
#> [33,] ""
#> [34,] ""
#> [35,] ""
#> yOmdHMS ymdHMS
#> "%Y-%Om-%d %H:%M:%S" "%Y-%m-%d %H:%M:%S"
相关用法
- R lubridate DateTimeUpdate 更改日期对象的组成部分
- R lubridate stamp 基于人性化模板设置日期和时间格式
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- R lubridate date 获取/设置日期时间的日期部分
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- R lubridate make_difftime 创建一个 difftime 对象。
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- R lubridate with_tz 获取不同时区的日期时间
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- R lubridate cyclic_encoding 日期时间的循环编码
- R lubridate as.interval 将对象更改为间隔
- R lubridate second 获取/设置日期时间的秒部分
- R lubridate quarter 获取日期时间的财政季度和学期
- R lubridate posix_utils 各种 POSIX 实用程序
- R lubridate date_decimal 将小数转换为日期
- R lubridate as.duration 将对象更改为持续时间
- R lubridate hour 获取/设置日期时间的小时部分
- R lubridate minute 获取/设置日期时间的分钟部分
- R lubridate month 获取/设置日期时间的月份部分
- R lubridate duration 创建一个持续时间对象。
- R lubridate leap_year 一年是闰年吗？
- R lubridate local_time 从日期时间向量获取当地时间。
- R lubridate make_datetime 从数字表示高效创建日期时间
注：本文由纯净天空筛选整理自Hadley Wickham等大神的英文原创作品 Guess possible date-times formats from a character vector。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。