日期範圍的這個向量包含在我的類「字符」的數據框中。該格式取決於日期範圍是否跨越到一個不同的月份:將日期範圍轉換爲R中的日期類型
dput(pollingdata$dates)
c("Nov. 1-7", "Nov. 1-7", "Oct. 24-Nov. 6", "Oct. 4-Nov. 6",
"Oct. 30-Nov. 6", "Oct. 25-31", "Oct. 7-27", "Oct. 21-Nov. 3",
"Oct. 20-24", "Jul. 19", "Oct. 29-Nov. 4", "Oct. 28-Nov. 3",
"Oct. 27-Nov. 2", "Oct. 20-28", "Sep. 30-Oct. 20", "Oct. 15-19",
"Oct. 26-Nov. 1", "Oct. 25-31", "Oct. 24-30", "Oct. 18-26",
"Oct. 10-14", "Oct. 4-9", "Sep. 23-Oct. 6", "Sep. 16-29", "Sep. 2-22",
"Oct. 21-Nov. 2", "Oct. 17-25", "Sep. 30-Oct. 13", "Sep. 27-Oct. 3",
"Sep. 21-26", "Sep. 14-20", "Aug. 26-Sep. 15", "Sep. 7-13",
"Aug. 19-Sep. 8", "Aug. 31-Sep. 6", "Aug. 12-Sep. 1", "Aug. 9-Sep. 1",
"Aug. 24-30", "Aug. 5-25", "Aug. 17-23", "Jul. 29-Aug. 18",
"Aug. 10-16", "Jan. 12")
我想這個向量轉換成兩個單獨列在我的數據幀,1開始日期和結束日期2,在開始和結束的範圍內。兩欄應保存爲'Date'類,這將使我更容易在項目中使用這些數據。有誰知道一個簡單的方法來做這個操作?我一直在努力。
由於提前,
這個偉大工程,讓我鑽進去了。這些列不是日期格式,但我可能能得到 – Canovice
@Canvice Date需要年份信息,在您的數據集中它不會顯示。如果您可以隨意粘貼一年,那麼它會轉換爲「日期」(顯示在更新中) – akrun