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正在分析复杂的日期列

lubridate date r
  •  1
  • Emily Kothe  · 技术社区  · 7 年前

    我有一个日期列,其中包含民意测验发生的日期。

    这些民调有时会持续几天(通常但不总是连续进行),民调有时在一个月内开始,在下一个月结束,年份有时被输入YY,其他时间输入YYYY。

    我需要清理成一个开始日期和结束日期列一致的日期格式。如果投票是在一天内进行的,我认为结束日期列应该是NA或填写开始日期(如果你有一个解决方案,我可以随时从那里做相反的工作,如果需要的话)。如果存在不连续的日期范围,则可以放弃最早日期和最晚日期以及中间停止和重新启动。 

    dates <- c("12-15 Feb 2019", "6–11 Feb 2019", "7–10 Feb 2019", "23–30 Jan 2019", 
"24–27 Jan 2019", "9–13 Jan 2019", "13-16 Dec 2018", "13–15 Dec 2018", 
"6–9 Dec 2018", "29 Nov – 2 Dec 2018", "23–25 Nov 2018", "15-18 Nov 2018", 
"15–17 Nov 2018", "8–11 Nov 2018", "1–4 Nov 2018", "25–28 Oct 2018", 
"19–21 Oct 2018", "10–13 Oct 2018", "10–13 Oct 2018", "5–7 Oct 2018", 
"22–24 Sep 2018", "20–23 Sep 2018", "12–15 Sep 2018", "8–10 Sep 2018", 
"6–9 Sep 2018", "25–26 Aug 2018", "24–26 Aug 2018", "24–25 Aug 2018", 
"15-18 Aug 2018", "12-Aug-18", "06-Aug-18", "29-Jul-18", "17-Jul-18", 
"16-Jul-18", "03-Jul-18", "02-Jul-18", "21–24 Jun 2018", "14–17 Jun 2018", 
"14–17 Jun 2018", "02-Jun-18", "31 May – 3 Jun 2018", "24–27 May 2018", 
"17–20 May 2018", "10–13 May 2018", "10–13 May 2018", "10–12 May 2018", 
"3–6 May 2018", "30-Apr-18", "19–22 Apr 2018", "22-Apr-18", "5–8 Apr 2018", 
"5–8 Apr 2018", "3–5 Apr 2018", "24 Mar – 1 Apr 2018", "28-Mar-18", 
"22–25 Mar 2018", "22–25 Mar 2018", "17–25 Mar 2018", "8–11 Mar 2018", 
"3–11 Mar 2018", "1–4 Mar 2018", "22–25 Feb 2018", "24-Feb-18", 
"15–18 Feb 2018", "8–11 Feb 2018", "1–3 Feb 2018", "26–28 Jan 2018", 
"25-Jan-18", "11–15 Jan 2018", "19-Dec-17", "14–17 Dec 2017", 
"12-Dec-17", "7–10 Dec 2017", "05-Dec-17", "30 Nov ? 3 Dec 2017", 
"29-Nov-17", "28-Nov-17", "23–27 Nov 2017", "21-Nov-17", "14-Nov-17", 
"14-Nov-17", "13-Nov-17", "30-Oct-17", "26–29 Oct 2017", "24-Oct-17", 
"12–15 Oct 2017", "04-Oct-17", "01-Oct-17", "26-Sep-17", "21–24 Sep 2017", 
"19-Sep-17", "14–18 Sep 2017", "12-Sep-17", "6–9 Sep 2017", "05-Sep-17", 
"31 Aug – 4 Sep 2017", "28 Aug – 2 Sep 2017", "29-Aug-17", "23-Aug-17", 
"22-Aug-17", "17–21 Aug 2017", "17–20 Aug 2017", "15-Aug-17", 
"08-Aug-17", "3–6 Aug 2017", "01-Aug-17", "25-Jul-17", "20–24 Jul 2017", 
"20–23 Jul 2017", "19-Jul-17", "18-Jul-17", "6–11 Jul 2017", 
"6–9 Jul 2017", "29-Jun-17", "22–27 Jun 2017", "15–18 Jun 2017", 
"14-Jun-17", "26–29 May 2017", "23-May-17", "12–15 May 2017", 
"11-May-17", "10–11 May 2017", "26–30 Apr 2017", "20–23 Apr 2017", 
"13–16 Apr 2017", "6–9 Apr 2017", "1–4 Apr 2017", "30 Mar – 2 Apr 2017", 
"24–27 Mar 2017", "22–25 Mar 2017", "17–20 Mar 2017", "16–19 Mar 2017", 
"10–13 Mar 2017", "3–6 Mar 2017", "23–26 Feb 2017", "16–19 Feb 2017", 
"9–12 Feb 2017", "2–5 Feb 2017", "20–23 Jan 2017", "13–16 Jan 2017", 
"12-Jan-17", "9–12 Dec 2016", "1–4 Dec 2016", "25–28 Nov 2016", 
"24–26 Nov 2016", "17–20 Nov 2016", "11–14 Nov 2016", "3–6 Nov 2016", 
"20–23 Oct 2016", "14–17 Oct 2016", "7–10 Oct 2016", "6–9 Oct 2016", 
"22–25 Sep 2016", "9–12 Sep 2016", "8–11 Sep 2016", "26–29 Aug 2016", 
"25–28 Aug 2016", "19–22 Aug 2016", "12–15 Aug 2016", "5–8 Aug 2016", 
"27 Jul – 1 Aug 2016", "20–24 Jul 2016", "13–17 Jul 2016", "6–10 Jul 2016", 
"30 Jun – 3 Jul 2016", "28 Jun – 1 Jul 2016", "30-Jun-16", "27–30 Jun 2016", 
"28–29 Jun 2016", "26–29 Jun 2016", "28 Jun – 1 Jul 2016", "30-Jun-16", 
"27–30 Jun 2016", "28–29 Jun 2016", "26–29 Jun 2016", "23–26 Jun 2016", 
"23–26 Jun 2016", "23-Jun-16", "20–22 Jun 2016", "16–19 Jun 2016", 
"16–19 Jun 2016", "16-Jun-16", "14–16 Jun 2016", "9–12 Jun 2016", 
"09-Jun-16", "2–5 Jun 2016", "2–5 Jun 2016", "02-Jun-16", "31 May – 2 Jun 2016", 
"26–29 May 2016", "21–22,\n                      28–29 May 2016", 
"26-May-16", "19–22 May 2016", "19–22 May 2016", "19-May-16", 
"17–19 May 2016", "14–15 May 2016", "12–15 May 2016", "6–8 May 2016", 
"5–8 May 2016", "5–8 May 2016", "5–7 May 2016", "4–6 May 2016", 
"05-May-16", "27 Apr – 1 May 2016", "23–24, 30 Apr – 1 May 2016", 
"20–24 Apr 2016", "14–17 Apr 2016", "13–17 Apr 2016", "9–10,\n                      16–17 Apr 2016", 
"14–16 Apr 2016", "14-Apr-16", "6–10 Apr 2016", "31 Mar – 3 Apr 2016", 
"26–27 Mar, 2–3 Apr 2016", "21-Mar-16", "17–20 Mar 2016", "16–20 Mar 2016", 
"12–13,\n                      19–20 Mar 2016", "10–12 Mar 2016", 
"3–6 Mar 2016", "2–6 Mar 2016", "27–28 Feb, 5–6 Mar 2016", "24–28 Feb 2016", 
"18–21 Feb 2016", "17–21 Feb 2016", "13–14, 20–21 Feb 2016", 
"11–13 Feb 2016", "11-Feb-16", "3–7 Feb 2016", "30–31 Jan,\n                      6–7 Feb 2016", 
"28–31 Jan 2016", "16–17, 23–24 Jan 2016", "21-Jan-16", "15–18 Jan 2016", 
"2–3, 9–10 Jan 2016", "15-Dec-15", "5–6, 12–13 Dec 2015", "08-Dec-15", 
"4–6 Dec 2015", "01-Dec-15", "21–22, 28–29 Nov 2015", "26-Nov-15", 
"24-Nov-15", "19–22 Nov 2015", "7–8, 14–15 Nov 2015", "12–14 Nov 2015", 
"10-Nov-15", "6–8 Nov 2015", "03-Nov-15", "24–25 Oct,\n                      1 Nov 2015", 
"27-Oct-15", "23–25 Oct 2015", "22-Oct-15", "20-Oct-15", "10–11, 17–18 Oct 2015", 
"15–17 Oct 2015", "13-Oct-15", "9–11 Oct 2015", "26–27 Sep, 1–5 Oct 2015", 
"1–4 Oct 2015", "24–28 Sep 2015", "17–21 Sep 2015", "19–20 Sep 2015", 
"17–20 Sep 2015", "15–16 Sep 2015", "15-Sep-15", "12–13 Sep 2015", 
"5–6 Sep 2015", "4–6 Sep 2015", "26–30 Aug 2015", "27-Aug-15", 
"22–23 Aug 2015", "20–23 Aug 2015", "13–15 Aug 2015", "11–14 Aug 2015", 
"8–9 Aug 2015", "8–9 Aug 2015", "4–7 Aug 2015", "06-Aug-15", 
"28–31 Jul 2015", "30-Jul-15", "25–26 Jul 2015", "16–19 Jul 2015", 
"14–17 Jul 2015", "11–12 Jul 2015", "4–5 Jul 2015", "2–4 Jul 2015", 
"27–28 Jun 2015", "16-Jun-15", "16-Jun-15", "13–14 Jun 2015", 
"11–13 Jun 2015", "11–13 Jun 2015", "02-Jun-15", "02-Jun-15", 
"23–24, 30–31 May 2015", "26-May-15", "18-May-15", "17-May-15", 
"17-May-15", "13-May-15", "7–10 May 2015", "04-May-15", "04-May-15", 
"28-Apr-15", "21-Apr-15", "11–12,\n                      18–19 Apr 2015", 
"14-Apr-15", "10–12 Apr 2015", "9–11 Apr 2015", "28–29 Mar, 3–6 Apr 2015", 
"29-Mar-15", "20–22 Mar 2015", "14–15, 21–22 Mar 2015", "17-Mar-15", 
"10-Mar-15", "7–8 Mar 2015", "28 Feb–1, 7–8 Mar 2015", "26–28 Feb 2015", 
"20–22 Feb 2015", "20–22 Feb 2015", "6–8 Feb 2015", "31 Jan–1, 7–8 Feb 2015", 
"05-Feb-15", "4–5 Feb 2015", "28–30 Jan 2015", "27-Jan-15", "r27 Jan 2015", 
"20-Jan-15", "13-Jan-15", "12-Jan-15", "23–27 Dec 2014", "16-Dec-14", 
"12–15 Dec 2014", "6–7, 13–14 Dec 2014", "4–6 Dec 2014", "2–4 Dec 2014", 
"02-Dec-14", "29–30 Nov 2014", "22–23, 29–30 Nov 2014", "25-Nov-14", 
"21-Nov-14", "18-Nov-14", "17-Nov-14", "17-Nov-14", "11-Nov-14", 
"04-Nov-14", "04-Nov-14", "25–26 Oct,\n                      1–2 Nov 2014", 
"30 Oct–1 Nov 2014", "28-Oct-14", "23-Oct-14", "21-Oct-14", "21-Oct-14", 
"20-Oct-14", "14-Oct-14", "07-Oct-14", "4–5 Oct 2014", "4–5 Oct 2014", 
"23-Sep-14", "13–14,\n                      20–21 Sep 2014", 
"18-Sep-14", "30–31 Aug, 6–7 Sep 2014", "5–7 Sep 2014", "22–24 Aug 2014", 
"16–17, 23–24 Aug 2014", "19-Aug-14", "9–10 Aug 2014", "8–10 Aug 2014", 
"25–27 Jul 2014", "11–13 Jul 2014", "01-Jul-14", "30-Jun-14", 
"27–29 Jun 2014", "13–15 Jun 2014", "30 May–1 Jun 2014", "27-May-14", 
"20-May-14", "17–18 May 2014", "16–18 May 2014", "15–17 May 2014", 
"04-May-14", "2–4 May 2014", "30-Apr-14", "22-Apr-14", "15-Apr-14", 
"13-Apr-14", "08-Apr-14", "07-Apr-14", "4–6 Apr 2014", "25-Mar-14", 
"25-Mar-14", "21–23 Mar 2014", "18-Mar-14", "13–15 Mar 2014", 
"7–9 Mar 2014", "05-Mar-14", "23-Feb-14", "21–23 Feb 2014", "15-Feb-14", 
"7–9 Feb 2014", "28-Jan-14", "23-Jan-14", "17–20 Jan 2014", "13-Jan-14", 
"16-Dec-13", "15-Dec-13", "6–8 Dec 2013", "28 Nov–2 Dec 2013", 
"30 Nov–1 Dec 2013", "22–24 Nov 2013", "21–23 Nov 2013", "8–10 Nov 2013", 
"25–27 Oct 2013", "19–20 Oct 2013", "21–22 Sep 2013", "19–22 Sep 2013", 
"12–15 Sep 2013", "4–6 Sep 2013", "05-Sep-13", "3–5 Sep 2013", 
"4–6 Sep 2013", "05-Sep-13", "4–5 Sep 2013", "3–5 Sep 2013", 
"04-Sep-13", "2–4 Sep 2013", "1–4 Sep 2013", "03-Sep-13", "30 Aug–1 Sep 2013", 
"30 Aug–1 Sep 2013", "29 Aug–1 Sep 2013", "28–29 Aug 2013", "28–29 Aug 2013", 
"26-Aug-13", "21–25 Aug 2013", "23–25 Aug 2013", "23–25 Aug 2013", 
"18–22 Aug 2013", "16–18 Aug 2013", "16–18 Aug 2013", "16–18 Aug 2013", 
"14–18 Aug 2013", "14–15 Aug 2013", "12–13 Aug 2013", "9–12 Aug 2013", 
"9–11 Aug 2013", "9–11 Aug 2013", "10-Aug-13", "7–9 Aug 2013", 
"6–8 Aug 2013", "04-Aug-13", "2–4 Aug 2013", "2–4 Aug 2013", 
"1–4 Aug 2013", "26–28 Jul 2013", "25–28 Jul 2013", "23–25 Jul 2013", 
"18–22 Jul 2013", "19–21 Jul 2013", "19–21 Jul 2013", "18-Jul-13", 
"12–14 Jul 2013", "11–14 Jul 2013", "11–13 Jul 2013", "5–8 Jul 2013", 
"5–7 Jul 2013", "5–7 Jul 2013", "4–7 Jul 2013", "28–30 Jun 2013", 
"28–30 Jun 2013", "27–30 Jun 2013", "27–28 Jun 2013", "27-Jun-13", 
"21–23 Jun 2013", "21–23 Jun 2013", "20–23 Jun 2013", "14–16 Jun 2013", 
"13–16 Jun 2013", "13–15 Jun 2013", "11–13 Jun 2013", "7–10 Jun 2013", 
"6–10 Jun 2013", "31 May–2 Jun 2013", "31 May–2 Jun 2013", "30 May–2 Jun 2013", 
"24–26 May 2013", "23–26 May 2013", "17–19 May 2013", "17–19 May 2013", 
"16–19 May 2013", "16–18 May 2013", "15–16 May 2013", "10–12 May 2013", 
"9–12 May 2013", "3–5 May 2013", "3–5 May 2013", "2–5 May 2013", 
"02-May-13", "26–28 Apr 2013", "25–28 Apr 2013", "18–22 Apr 2013", 
"18–22 Apr 2013", "19–21 Apr 2013", "11–14 Apr 2013", "11–14 Apr 2013", 
"11–13 Apr 2013", "9–11 Apr 2013", "02-May-13", "5–7 Apr 2013", 
"4–7 Apr 2013", "4–7 Apr 2013", "29 Mar–1 Apr 2013", "28 Mar–1 Apr 2013", 
"22–24 Mar 2013", "21–24 Mar 2013", "22–23 Mar 2013", "21–24 Mar 2013", 
"22–25 Mar 2013", "14–17 Mar 2013", "14–17 Mar 2013", "14–16 Mar 2013", 
"7–10 Mar 2013", "7–10 Mar 2013", "8–10 Mar 2013", "5–7 Mar 2013", 
"28 Feb–3 Mar 2013", "28 Feb–3 Mar 2013", "21–24 Feb 2013", "16–17/23–24 Feb 2013", 
"22–24 Feb 2013", "14–17 Feb 2013", "14–16 Feb 2013", "7–10 Feb 2013", 
"9–10 Feb 2013", "1–4 Feb 2013", "2–3 Feb 2013", "1–3 Feb 2013", 
"1–3 Feb 2013", "23–28 Jan 2013", "19–20/26–27 Jan 2013", "16–20 Jan 2013", 
"9–13 Jan 2013", "11–13 Jan 2013", "5–6/12–13 Jan 2013", "12–16 Dec 2012", 
"8–9/15–16 Dec 2012", "13–15 Dec 2012", "5–9 Dec 2012", "7–9 Dec 2012", 
"28 Nov–2 Dec 2012", "24–25 Nov/1–2 Dec 2012", "29–30 Nov 2012", 
"27–29 Nov 2012", "23–25 Nov 2012", "21–25 Nov 2012", "14–18 Nov 2012", 
"10–11/17–18 Nov 2012", "15–17 Nov 2012", "9–11 Nov 2012", "7–11 Nov 2012", 
"2–6 Nov 2012", "2–4 Nov 2012", "27–28 Oct/3–4 Nov 2012", "26–28 Oct 2012", 
"25–28 Oct 2012", "13–14/20–21 Oct 2012", "17–21 Oct 2012", "18–20 Oct 2012", 
"10–14 Oct 2012", "5–7 Oct 2012", "3–7 Oct 2012", "29–30 Sep/6–7 Oct 2012", 
"26–30 Sep 2012", "22–23 Sep 2012", "19–23 Sep 2012", "17–20 Sep 2012", 
"14–16 Sep 2012", "12–16 Sep 2012", "8–9/15–16 Sep 2012", "13–15 Sep 2012", 
"29 Aug–2 Sep 2012", "31 Aug–2 Sep 2012", "1–2 Sep 2012", "22–26 Aug 2012", 
"23–25 Aug 2012", "15–19 Aug 2012", "17–19 Aug 2012", "11–12/18–19 Aug 2012", 
"8–12 Aug 2012", "3–5 Aug 2012", "1–5 Aug 2012", "28–29 Jul/4–5 Aug 2012", 
"25–29 Jul 2012", "26–28 Jul 2012", "20–22 Jul 2012", "18–22 Jul 2012", 
"14–15/21–22 Jul 2012", "11–15 Jul 2012", "6–8 Jul 2012", "4–8 Jul 2012", 
"30 Jun–1/7–8 Jul 2012", "27 Jun–1 Jul 2012", "22–24 Jun 2012", 
"20–24 Jun 2012", "16–17/23–24 Jun 2012", "13–17 Jun 2012", "15–17 Jun 2012", 
"6–11 Jun 2012", "9–10 Jun 2012", "7–10 Jun 2012", "2–3 Jun 2012", 
"31 May–2 Jun 2012", "30 May–3 Jun 2012", "26–27 May 2012", "23–27 May 2012", 
"25–27 May 2012", "16–20 May 2012", "19–20 May 2012", "12–13 May 2012", 
"11–13 May 2012", "9–13 May 2012", "9–10 May 2012", "9–10 May 2012", 
"5–6 May 2012", "2–6 May 2012", "27–29 Apr 2012", "27–29 Apr 2012", 
"25–29 Apr 2012", "21–22 Apr 2012", "18–22 Apr 2012", "17–19 Apr 2012", 
"13–15 Apr 2012", "11–15 Apr 2012", "7–8/14–15 Apr 2012", "4–9 Apr 2012", 
"31 Mar–1 Apr 2012", "28 Mar–1 Apr 2012", "29–31 Mar 2012", "21–25 Mar 2012", 
"24–25 Mar 2012", "23–25 Mar 2012", "14–18 Mar 2012", "10–11/17–18 Mar 2012", 
"9–11 Mar 2012", "7–11 Mar 2012", "3–4 Mar 2012", "29 Feb–4 Mar 2012", 
"25–26 Feb 2012", "23–26 Feb 2012", "22–26 Feb 2012", "23–24 Feb 2012", 
"22–23 Feb 2012", "15–19 Feb 2012", "11–12/18–19 Feb 2012", "10–12 Feb 2012", 
"8–10 Feb 2012", "7–8 Feb 2012", "4–5 Feb 2012", "1–5 Feb 2012", 
"2–4 Feb 2012", "28–29 Jan 2012", "27–29 Jan 2012", "25–29 Jan 2012", 
"27–28 Jan 2012", "18–22 Jan 2012", "14–15/21–22 Jan 2012", "17–18 Jan 2012", 
"11–15 Jan 2012", "7–8 Jan 2012", "14–18 Dec 2011", "10–11/17–18 Dec 2011", 
"7–11 Dec 2011", "8–10 Dec 2011", "2–4 Dec 2011", "30 Nov–4 Dec 2011", 
"26–27 Nov/3–4 Dec 2011", "23–27 Nov 2011", "19–20 Nov 2011", 
"18–20 Nov 2011", "16–20 Nov 2011", "9–13 Nov 2011", "5–6/12–13 Nov 2011", 
"10–12 Nov 2011", "3–6 Nov 2011", "2–6 Nov 2011", "2–3 Nov 2011", 
"26–30 Oct 2011", "29–30 Oct 2011", "25–26 Oct 2011", "22–23 Oct 2011", 
"21–23 Oct 2011", "19–23 Oct 2011", "15–16Oct 2011", "14–16 Oct 2011", 
"12–16 Oct 2011", "13–15 Oct 2011", "8–9 Oct 2011", "7–9 Oct 2011", 
"4–9 Oct 2011", "27 Sep–2 Oct 2011", "24–25 Sep/1–2 Oct 2011", 
"20–25 Sep 2011", "16–18 Sep 2011", "13–18 Sep 2011", "10–11/17–18 Sep 2011", 
"7–11 Sep 2011", "8–10 Sep 2011", "2–4 Sep 2011", "31 Aug–4 Sep 2011", 
"27–28 Aug/3–4 Sep 2011", "24–28 Aug 2011", "19–21 Aug 2011", 
"17–21 Aug 2011", "13–14/20–21 Aug 2011", "10–14 Aug 2011", "11–13 Aug 2011", 
"9–10 Aug 2011", "5–7 Aug 2011", "3–7 Aug 2011", "30–31 Jul/6–7 Aug 2011", 
"c. 3 Aug 2011", "27–31 Jul 2011", "22–24 Jul 2011", "20–24 Jul 2011", 
"16–17/23–24 Jul 2011", "13–17 Jul 2011", "14–16 Jul 2011", "13–14 Jul 2011", 
"9–10 Jul 2011", "8–10 Jul 2011", "6–10 Jul 2011", "29 Jun–3 Jul 2011", 
"25–26 Jun/1–2 Jul 2011", "24–26 Jun 2011", "22–26 Jun 2011", 
"11–12/18–19 Jun 2011", "15–19 Jun 2011", "14–16 Jun 2011", "8–13 Jun 2011", 
"10–12 Jun 2011", "4–5 Jun 2011", "1–5 Jun 2011", "31 May–2 Jun 2011", 
"25–29 May 2011", "27–29 May 2011", "21–22/28–29 May 2011", "18–22 May 2011", 
"14–15 May 2011", "13–15 May 2011", "11–15 May 2011", "12–14 May 2011", 
"7–8 May 2011", "4–8 May 2011", "3–4 May 2011", "29 Apr–1 May 2011", 
"28 Apr–1 May 2011", "23–24/30 Apr–1 May 2011", "20–26 Apr 2011", 
"13–17 Apr 2011", "9–10/16–17 Apr 2011", "14–16 Apr 2011", "6–10 Apr 2011", 
"2–3 Apr 2011", "1–3 Apr 2011", "30 Mar–3 Apr 2011", "26–27 Mar 2011", 
"23–27 Mar 2011", "22–24 Mar 2011", "19–20 Mar 2011", "18–20 Mar 2011", 
"16–20 Mar 2011", "16–17 Mar 2011", "12–13 Mar 2011", "9–13 Mar 2011", 
"10–12 Mar 2011", "8–10 Mar 2011", "5–6 Mar 2011", "4–6 Mar 2011", 
"2–6 Mar 2011", "26–27 Feb 2011", "22–27 Feb 2011", "21–23 Feb 2011", 
"18–20 Feb 2011", "15–20 Feb 2011", "12–13/19–20 Feb 2011", "8–13 Feb 2011", 
"10–12 Feb 2011", "4–6 Feb 2011", "1–6 Feb 2011", "29–30 Jan/5–6 Feb 2011", 
"1–3 Feb 2011", "25–30 Jan 2011", "18–23 Jan 2011", "15–16/22–23 Jan 2011", 
"11–16 Jan 2011", "8–9 Jan 2011", "14–19 Dec 2010", "11–12 Dec 2010", 
"8–12 Dec 2010", "7–12 Dec 2010", "4–5 Dec 2010", "3–5 Dec 2010", 
"30 Nov–5 Dec 2010", "23–28 Nov 2010", "20–21/27–28 Nov 2010", 
"19–21 Nov 2010", "16–21 Nov 2010", "18–20 Nov 2010", "9–14 Nov 2010", 
"6–7/13–14 Nov 2010", "5–7 Nov 2010", "2–7 Nov 2010", "26–31 Oct 2010", 
"23–24/30–31 Oct 2010", "22–24 Oct 2010", "19–24 Oct 2010", "21–23 Oct 2010", 
"12–17 Oct 2010", "9–10/16–17 Oct 2010", "8–10 Oct 2010", "5–10 Oct 2010", 
"2–3 Oct 2010", "30 Sep–1 Oct 2010", "21–26 Sep 2010", "18–19 Sep 2010", 
"14–19 Sep 2010", "15–16 Sep 2010", "10–12 Sep 2010", "7–12 Sep 2010", 
"31 Aug–5 Sep 2010", "28–29 Aug/4–5 Sep 2010", "24–29 Aug 2010", 
"25–26 Aug 2010", "c. 21 Aug 2010", "17–19 Aug 2010", "13–19 Aug 2010"
)

    "30 Nov ? 3 Dec 2017"
    "21–22,\n 28–29 May 2016" "24–25 Oct,\n 1 Nov 2015" "29–30 Sep/6–7 Oct 2012"

    0 回复  |  直到 7 年前
        1
  •  5
  •   Peter Ellis    7 年前

    这个怎么样: 

    library(tidyverse)
tibble(dates = dates) %>%
  mutate(end_year = str_extract(dates, "[0-9]*$"),
         end_year = ifelse(str_length(end_year) == 2, paste0("20", end_year), end_year),
         month_one = str_extract(dates, "[A-Z][a-z][a-z]"),
         month_two = str_sub(str_extract(dates, "[A-Z][a-z][a-z].*[A-Z][a-z][a-z]"), start = -3),
         month_two = if_else(is.na(month_two), month_one, month_two),
         day_one = str_extract(dates, "[0-9]+"),
         dates_without_day_one = gsub("^[0-9]+", "", dates),
         day_two = str_extract(dates_without_day_one, "[0-9]+"),
         day_two = str_squish(gsub("[-–]", "", day_two)),
         day_three_four = str_extract(dates, "/.+[-–] *[0-9]+"),
         day_three = str_extract(day_three_four, "/ *[0-9]+"),
         day_three = str_squish(gsub("/", "", day_three)),
         day_four = str_extract(day_three_four, "[-–] *[0-9]+"),
         day_four = str_squish(gsub("[-–]", "", day_four))
  ) %>%
  # dates that are only a single day:
  mutate(day_two = if_else(is.na(day_two), day_one, day_two)) %>%
  # dates that actually have four days:
  mutate(day_one = ifelse(is.na(day_three),
                           day_one,
                           round((as.numeric(day_one) + as.numeric(day_two)) / 2)),
         day_two = ifelse(is.na(day_three),
                           day_two,
                           round((as.numeric(day_three) + as.numeric(day_four)) / 2))) %>%
  select(-day_three_four, -dates_without_day_one) %>%

  mutate(start_date = as.Date(paste(end_year,month_one, day_one, sep = "-"), format = "%Y-%b-%d"),
         end_date = as.Date(paste(end_year,month_two, day_two, sep = "-"), format = "%Y-%b-%d")) %>%
  select(dates, start_date, end_date, everything())

    提供: 

    # A tibble: 838 x 10
   dates               start_date end_date   end_year month_one month_two day_one day_two day_three day_four
   <chr>               <date>     <date>     <chr>    <chr>     <chr>     <chr>   <chr>   <chr>     <chr>   
 1 12-15 Feb 2019      2019-02-12 2019-02-15 2019     Feb       Feb       12      15      NA        NA      
 2 6–11 Feb 2019       2019-02-06 2019-02-11 2019     Feb       Feb       6       11      NA        NA      
 3 7–10 Feb 2019       2019-02-07 2019-02-10 2019     Feb       Feb       7       10      NA        NA      
 4 23–30 Jan 2019      2019-01-23 2019-01-30 2019     Jan       Jan       23      30      NA        NA      
 5 24–27 Jan 2019      2019-01-24 2019-01-27 2019     Jan       Jan       24      27      NA        NA      
 6 9–13 Jan 2019       2019-01-09 2019-01-13 2019     Jan       Jan       9       13      NA        NA      
 7 13-16 Dec 2018      2018-12-13 2018-12-16 2018     Dec       Dec       13      16      NA        NA      
 8 13–15 Dec 2018      2018-12-13 2018-12-15 2018     Dec       Dec       13      15      NA        NA      
 9 6–9 Dec 2018        2018-12-06 2018-12-09 2018     Dec       Dec       6       9       NA        NA      
10 29 Nov – 2 Dec 2018 2018-11-29 2018-12-02 2018     Nov       Dec       29      2       NA        NA
        2
  •  -1
  •   Lokinou    7 年前

    强制日期格式上游 创建输入公式时。

    这个答案解决不了你的问题 准确的 日期范围的问题,但你可以调整我在这里提出的解决方案来处理它。我用了所谓的 正则表达式模式 . 我将在python的类似解决方案中使用的模式粘贴到这里。 

    # 2019/02/20 or 2019-02-20
(?:|[\s\/\.:])+(\d{4})[\/\-\.\s](\d{2})[\/\-\.\s](\d{2})(?:$|[\s\/\.\-])+
# 02/20/2019 or 20/02/2019
(?:|[\/\s\.:])+(\d{2})[\/\-\.\s](\d{2})[\/\-\.\s](\d{4})(?:$|[\/\s\.\-])+
# 20 Feb 2019 or 20-Feb-2019
(?:^|[\s\.:])+(\d{2})[\/\-\.\s]?([a-zA-Z]{2,3})[\/\-\.\s]?(\d{4})(?:$|[\s\.\-])+
# 2019 Feb 20
(?:^|[\s\.:])+(\d{4})[\/\-\.\s]?([a-zA-Z]{2,3})[\/\-\.\s]?(\d{2})(?:$|[\s\.\-])+
# February 20th, 2019
(?:^|[\s\.:])+([a-zA-Z]{3,15})\s(\d{1,2})\s?[a-zA-Z]{2},\s?(\d{2,4})(?:$|[\s\.\-])+
# Feb 20 2019 or February 20 2019
(?:^|[\s\.:])*([a-zA-Z]{3,15})[ _\-\/\\\.]?(\d{1,2})[ _\-\/\\\.](\d{2,4})(?:$|[\s\.\-])+
#20-FEB-2019
(?:^|[\s\.\-:])+(\d{1,2})[ _\-\/\\\.]([a-zA-Z]{3,15})[ _\-\/\\\.](\d{2,4})(?:$|[\s\.\-])+
#2019.Feb.20
(?:^|[\s\.\-:])+(\d{4})[ _\-\/\\\.]([a-zA-Z]{3,15})[ _\-\/\\\.](\d{1,2})(?:$|[\s\.\-])+
# 20 Feb. 2019
(?:^|[\s\.\-:])+(\d{2})[\/\-\.\s]([a-zA-Z]{3,15})[\/\-\.\s]{1,2}(\d{4})(?:$|[\s\.\-])+

    这些正则表达式模式包含三个组,您可以提取这些组并手动测试,以防解析不明确的日期(例如:02/01/2019)。

    在实施解决方案之前,我建议您按以下步骤进行:

    • 列一个清单,列出你要分析的所有日期,每行一个
    • 将它们全部粘贴到正则表达式测试仪中(例如: online regex tester
    • 尝试(并最终修改)以下每个模式
    • 检查正确捕获的日期,直到没有人留在列表中,并且没有冲突发生
    • 暗暗希望有一个国际标准的日期 enter image description here match information
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