Question

请您告诉我如何在__：59结束的日期时间内添加一秒钟？

即。从这个：

              dateTime rain_mm
1  2012-12-01 00:00:00     1.0
2  2012-12-01 00:06:00     0.0
3  2012-12-01 00:11:59     0.0
4  2012-12-01 00:17:59     0.0
5  2012-12-01 00:24:00     0.2
6  2012-12-01 00:30:00     0.0
7  2012-12-01 00:36:00     1.0
8  2012-12-01 00:42:00     0.0
9  2012-12-01 00:48:00     0.8
10 2012-12-01 00:53:59     0.2

为：

              dateTime rain_mm
1  2012-12-01 00:00:00     1.0
2  2012-12-01 00:06:00     0.0
3  2012-12-01 00:12:00     0.0
4  2012-12-01 00:18:00     0.0
5  2012-12-01 00:24:00     0.2
6  2012-12-01 00:30:00     0.0
7  2012-12-01 00:36:00     1.0
8  2012-12-01 00:42:00     0.0
9  2012-12-01 00:48:00     0.8
10 2012-12-01 00:54:00     0.2

请帮忙吗？提前谢谢

Answer 1

您可以检查as.integer(format(x, "%S") == "59")当转换为整数时，1或0可以方便地添加到x，因为POSIXct是衡量秒数（通常是1970-01-01：00：00：00，或者在某些情况下，是任意来源）。

x = structure(c(1354342319, 1354343040), class = c("POSIXct", "POSIXt"), tzone = "")
x
#[1] "2012-12-01 00:11:59 CST" "2012-12-01 00:24:00 CST"
x + as.integer(format(x, "%S") == "59")
#[1] "2012-12-01 00:12:00 CST" "2012-12-01 00:24:00 CST"

在r中的特定时间添加一秒

1 个答案: