从2个向量之间的日期创建时间序列列表 [英] Create a list of time sequences from dates between 2 vectors

问题描述

我是循环圈的新手。我想执行以下操作，但要针对整个向量：

I'm new to loops. I would like to do the following, but for an entire vector:

library(timedate)
timeSequence("2014-05-09 10:48:00", "2014-05-11 19:39:00", by = "min")

这里是一个示例：

Dates <- data.frame(Start = c("2014-05-09 10:48:00",
                             "2014-05-11 19:39:00",
                             "2014-10-09 08:52:00",
                             "2014-10-29 10:48:59",
                             "2014-11-13 03:08:00"),
                       End = c("2014-05-11 19:39:00",
                              "2014-05-12 07:05:00",
                              "2014-10-29 10:48:59",
                              "2014-11-13 03:08:00",
                              "2014-11-13 08:41:59"))

我从开始：

timeSequence(Dates$Start, Dates$End, by = "min)

但是得到错误'from'的长度必须为1 ...

But gets the error 'from' must be of length 1...

所以我尝试了不同的迭代 for 循环，但没有成功：

So I've tried different iterations of for loops, with no success:

for (a in Dates$Start) {
  for (b in Dates$End) {
    Date_List <- timeSequence(a, b, by = "min")
  }
}

在这里我在seq.int（0，to0-from，by）中得到 Error：错误登录按自变量。我想要一个清单，其中每个项目在向量中的日期之间都有完整的顺序。

Here I get Error in seq.int(0, to0 - from, by) : wrong sign in 'by' argument. I'd like to have a list where each item has the full sequence between dates in the vectors. Thank you so much.

推荐答案

您可以使用 mapply

library(timeDate)

mapply(timeSequence, from = Dates$Start, to = Dates$End, by = "min", SIMPLIFY = FALSE)

这篇关于从2个向量之间的日期创建时间序列列表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！