我已经放弃了我的代码,并且会听到是否有人对如何获得我所寻求的结果提出建议。 我有一个包含三个变量的数据框:date_time,ID和x。 “ x”列是每5分钟出现一次的变量x的记录。 ID指示正在记录的内容。请参见下面的数据框。
从这个数据框中,我想计算一个新的数据框,该数据框由以下几列组成(每次测量都应有一行):
数据集中缺少值。例如。 x小于4的时间段(始于02:00:00到02:25:00且之间缺少三个值)应被视为小于15分钟的时间段。
structure(list(date_time = c("2020.03.02 22:00:17", "2020.03.02 22:05:17",
"2020.03.02 22:10:17", "2020.03.02 22:15:17", "2020.03.02 22:20:17",
"2020.03.02 22:25:17", "2020.03.02 22:30:17", "2020.03.02 22:35:17",
"2020.03.02 22:40:17", "2020.03.02 22:45:17", "2020.03.02 22:50:17",
"2020.03.02 22:55:17", "2020.03.02 23:00:17", "2020.03.02 23:05:17",
"2020.03.02 23:10:17", "2020.03.02 23:15:17", "2020.03.02 23:20:17",
"2020.03.02 23:25:17", "2020.03.02 23:30:17", "2020.03.02 23:35:17",
"2020.03.02 23:40:17", "2020.03.02 23:45:17", "2020.03.02 23:50:17",
"2020.03.02 23:55:17", "2020.03.03 00:00:17", "2020.03.03 00:05:17",
"2020.03.03 00:10:17", "2020.03.03 00:15:17", "2020.03.03 00:20:17",
"2020.03.03 00:25:17", "2020.03.03 00:30:17", "2020.03.03 00:35:17",
"2020.03.03 00:40:17", "2020.03.03 00:45:17", "2020.03.03 00:50:17",
"2020.03.03 00:55:17", "2020.03.03 01:00:17", "2020.03.03 01:05:17",
"2020.03.03 01:10:17", "2020.03.03 01:15:17", "2020.03.03 01:20:17",
"2020.03.03 01:25:17", "2020.03.03 01:30:17", "2020.03.03 01:35:17",
"2020.03.03 01:40:17", "2020.04.03 08:24:32", "2020.04.03 08:29:32",
"2020.04.03 08:34:32", "2020.04.03 08:39:32", "2020.04.03 08:44:32",
"2020.04.03 08:49:32", "2020.04.03 08:54:32", "2020.04.03 08:59:32",
"2020.04.03 09:04:32", "2020.04.03 09:09:32", "2020.04.03 09:14:32",
"2020.04.03 09:19:32", "2020.04.03 09:24:32", "2020.04.03 09:29:32",
"2020.04.03 09:34:32", "2020.04.03 09:39:32", "2020.04.03 09:44:32",
"2020.04.03 09:49:32", "2020.04.03 09:54:32", "2020.04.03 09:59:32",
"2020.04.03 10:04:32"), case = c(12L, 12L, 12L, 12L, 12L, 12L,
12L, 12L, 12L, 12L, 12L, 12L, 13L, 13L, 13L, 13L, 13L, 13L, 13L,
13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L,
13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L,
13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L,
13L, 13L, 13L, 13L, 13L, 13L, 13L, 13L), x = c("7.55", "4.55",
"4.55", "4.55", "4.55", "12", "12", "12", "12", "10", "10", "4.3",
"", "", "4.3", "4.3", "4.3", "", "4.3", "12", "12", "12", "2",
"12", "12", "12", "7.55", "4.55", "4.55", "4.55", "4.55", "6",
"6", "7", "7", "", "8", "3", "3", "2", "2", "", "3", "6", "7",
"12", "12", "2", "12", "10", "10", "4.3", "4.3", "4.3", "4.3",
"4.3", "4.3", "4.3", "4.3", "12", "12", "12", "12", "12", "12",
"12")), row.names = c(NA, 66L), class = "data.frame")