怎样才能把chron time列拿回来？

Question

我以前的数据中有一个chron列，但是当我从列表转换到数据帧时，chron time变成了字符。我想要拿回chron专栏，怎么做？

现在chron列如下所示，属性是字符。我想把它换回chron。我使用了函数as.chron()，但它不起作用。

[1] "18408.5534143519" "18408.5697800926" "18408.6092824074" "18408.6126273148"
[5] "18408.6261921296" "18408.6345023148" "18408.677962963"  "18408.6815277778"
[9] "18409.3885416667" "18409.3949652778" "18409.4003125"    "18409.438900463" 
[13] "18409.4422222222" "18409.4495023148" "18409.4690856481" "18409.4788310185"

Answer 1

假设最后的注释中所显示的输入是可重复的：

library(chron)
as.chron(as.numeric(x))

给予：

 [1] (05/26/20 13:16:55) (05/26/20 13:40:29) (05/26/20 14:37:22)
 [4] (05/26/20 14:42:11) (05/26/20 15:01:43) (05/26/20 15:13:41)
 [7] (05/26/20 16:16:16) (05/26/20 16:21:24) (05/27/20 09:19:30)
[10] (05/27/20 09:28:45) (05/27/20 09:36:27) (05/27/20 10:32:01)
[13] (05/27/20 10:36:48) (05/27/20 10:47:17) (05/27/20 11:15:29)
[16] (05/27/20 11:29:31)

备注

x <- c("18408.5534143519", "18408.5697800926", "18408.6092824074", 
"18408.6126273148", "18408.6261921296", "18408.6345023148", "18408.677962963", 
"18408.6815277778", "18409.3885416667", "18409.3949652778", "18409.4003125", 
"18409.438900463", "18409.4422222222", "18409.4495023148", "18409.4690856481", 
"18409.4788310185")