我无法解决这个问题,我有一个带有计数数据列表的DF。例如:
DATE TIME ID
2014-02-14 15:02 1
2014-02-15 15:12 1
2014-02-16 08:34 2
2014-02-17 02:02 2
2014-02-19 11:02 1
2014-02-20 15:42 1
2014-02-22 16:02 2
2014-02-25 15.02 1
....
现在我想创建一个测量连续天数长度的函数,但我希望函数能够设置允许日期分开的天数(默认值= 1天) 。输出应该是DF,每个ID有多行(因为它们表示存在多个活动周期),并且每个连续的周期应显示该周期所包含的天数。输出示例应为:
ID periodID days
1 1 2
2 1 2
1 2 2
....
所以第一个问题是,如何构建这样的DF?其次,我该如何扩展它以便我可以在函数中输入一个输入来确保例如日期。相同的时间间隔2天或4天(因此不是连续的日期,但日期允许相隔> 1天)?
编辑以下是我正在处理的原始数据集的片段(请注意,同一天有多个数据点,但时间会被忽略,只有日期很重要。)
date time ID
24-10-14 10:47:36 1
24-10-14 10:52:19 1
24-10-14 10:56:47 1
24-10-14 10:58:57 1
24-10-14 11:39:18 1
24-10-14 12:03:27 1
24-10-14 12:19:22 1
24-10-14 12:43:22 2
24-10-14 12:44:42 2
24-10-14 12:55:47 1
24-10-14 12:58:15 3
24-10-14 14:12:35 1
24-10-14 14:29:20 1
24-10-14 14:42:27 1
24-10-14 14:43:49 1
24-10-14 15:49:46 1
24-10-14 16:03:21 1
24-10-14 16:08:09 1
24-10-14 17:24:34 1
24-10-14 17:25:46 1
24-10-14 17:34:06 1
24-10-14 17:35:26 1
24-10-14 17:45:54 1
24-10-14 17:55:03 1
24-10-14 17:57:37 1
24-10-14 18:01:27 1
24-10-14 18:02:46 1
24-10-14 18:07:02 1
24-10-14 18:08:17 1
24-10-14 18:09:51 1
24-10-14 18:15:04 1
24-10-14 18:16:50 1
24-10-14 18:18:28 1
24-10-14 18:23:14 1
24-10-14 18:33:17 1
24-10-14 18:34:18 1
24-10-14 18:40:06 1
24-10-14 18:41:21 1
25-10-14 03:54:16 4
25-10-14 03:57:18 4
25-10-14 03:58:48 4
25-10-14 04:05:54 4
25-10-14 04:07:30 4
25-10-14 04:08:47 4
25-10-14 04:21:46 4
25-10-14 04:26:59 4
25-10-14 07:33:44 2
25-10-14 07:35:00 2
25-10-14 07:45:23 2
25-10-14 07:56:48 2
25-10-14 08:01:38 2
25-10-14 08:07:05 2
25-10-14 08:08:23 2
25-10-14 08:11:29 2
25-10-14 08:13:23 2
25-10-14 08:15:15 2
25-10-14 08:17:05 2
25-10-14 08:18:50 2
25-10-14 08:24:53 2
25-10-14 08:32:34 2
25-10-14 08:43:50 2
25-10-14 08:50:08 2
25-10-14 08:52:51 2
25-10-14 08:53:55 2
25-10-14 08:56:37 2
25-10-14 08:58:50 2
25-10-14 09:07:31 2
25-10-14 09:08:57 2
25-10-14 09:10:52 2
25-10-14 09:26:54 2
25-10-14 09:28:45 2
25-10-14 09:30:33 2
25-10-14 09:32:11 2
25-10-14 09:35:19 2
25-10-14 09:36:58 2
25-10-14 09:41:46 2
25-10-14 09:54:16 2
25-10-14 10:13:33 2
25-10-14 10:30:30 2
25-10-14 10:32:05 2
25-10-14 10:33:19 2
25-10-14 10:34:49 2
25-10-14 10:35:55 2
25-10-14 10:37:12 2
25-10-14 10:54:39 2
25-10-14 10:57:36 2
25-10-14 11:00:02 2
25-10-14 11:45:42 2
25-10-14 11:49:21 2
25-10-14 11:54:17 2
25-10-14 11:59:10 2
25-10-14 12:02:57 2
25-10-14 12:04:46 2
25-10-14 12:06:28 2
25-10-14 12:10:07 2
25-10-14 12:11:26 2
25-10-14 12:14:39 2
25-10-14 12:16:54 2
25-10-14 12:20:19 2
25-10-14 12:22:37 2
25-10-14 12:24:08 2
25-10-14 12:25:15 2
25-10-14 12:26:33 2
25-10-14 12:28:12 2
25-10-14 12:29:34 2
25-10-14 12:31:25 2
25-10-14 12:33:09 2
25-10-14 12:34:43 2
25-10-14 12:35:53 2
25-10-14 12:37:20 2
25-10-14 12:38:16 2
25-10-14 12:41:16 2
25-10-14 12:42:28 2
25-10-14 12:43:57 2
25-10-14 12:44:57 2
25-10-14 12:46:01 2
25-10-14 12:48:46 2
25-10-14 12:52:50 2
25-10-14 12:54:13 2
25-10-14 12:56:01 2
25-10-14 12:57:45 2
25-10-14 12:59:15 2
25-10-14 13:01:41 2
25-10-14 13:03:21 2
25-10-14 13:04:46 2
25-10-14 13:08:37 2
25-10-14 13:24:01 2
25-10-14 13:25:56 2
25-10-14 13:27:50 2
25-10-14 13:29:42 2
25-10-14 13:34:37 2
25-10-14 13:35:37 2
25-10-14 13:36:40 2
25-10-14 13:37:50 2
25-10-14 13:41:06 2
25-10-14 13:46:02 2
25-10-14 13:51:54 2
25-10-14 13:58:16 2
25-10-14 14:00:07 2
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25-10-14 14:18:07 2
25-10-14 14:19:44 2
25-10-14 14:34:44 2
25-10-14 14:41:16 2
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25-10-14 14:44:26 2
25-10-14 15:00:40 2
25-10-14 15:03:35 2
25-10-14 15:08:17 2
25-10-14 15:09:34 2
25-10-14 15:11:11 2
25-10-14 15:12:29 2
25-10-14 15:14:07 2
25-10-14 15:15:30 2
25-10-14 15:30:34 2
25-10-14 15:32:10 2
25-10-14 15:38:01 2
25-10-14 15:41:15 2
25-10-14 15:54:31 2
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答案 0 :(得分:3)
我们可以使用dplyr
。首先,以适当的日期格式转换数据:
z$date <- as.Date(as.character(z$date), format = "%d-%m-%y")
现在功能:
library(dplyr)
runchecker <- function(data, days){
data %>% arrange(date) %>%
group_by(ID) %>%
mutate(diff = c(0, diff(date)),
periodID = 1 + cumsum(diff > days)) %>%
group_by(ID, periodID) %>%
summarise(days = last(date) - first(date))
}
并在您的数据上调用它:
runchecker(data, 1)
Source: local data frame [4 x 3]
Groups: ID [?]
ID periodID days
(int) (dbl) (dfft)
1 1 1 0 days
2 2 1 3 days
3 3 1 0 days
4 4 1 0 days
请注意,您的数据只有很少的日期更改或差距,可能包含更好的测试数据集?