以秒为单位从数字转换为时间

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问题描述

限时送ChatGPT账号..

我有一份完成调查所需的持续时间列表.目前采用数字形式.

I have a list of durations that it took to complete a survey. Currently in numeric form.

    duration
    275
    207
    197
    251
    651
    278
    20
    343

class(survey$duration)给出数字"

我希望 R 将这些读取为秒.我不需要任何日期或任何东西，与原始输出相同，但 R 将其识别为时间，而不是数字.

I want R to read these as seconds. I don't need any dates or anything, same output as it was original but for R to recognize it as time, not numeric.

我试过了survey$duration<-as.POSIXct(strptime(survey$duration, tz = "GMT", format = "%S")) 但结果也给出了日期.

I have tried survey$duration<-as.POSIXct(strptime(survey$duration, tz = "GMT", format = "%S")) but the result gives dates as well.

非常感谢！

推荐答案

lubridate 库可以将时间存储为 Duration、Intervals 或 Periods.这可能就是您要找的:

The lubridate library can store times as Durations, Intervals, or Periods. This might be what you are looking for:

duration_Vec<-sample(1:1000,10)

library(lubridate)
as.duration(duration_Vec)

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