我读过的所有文档似乎都表明,在lubridate 1.7.4中,持续时间可能是负的,包括R文档提供的示例:
> duration(-1, "days")
> duration(day = -1)
This one bugfix back in 2009说的与示例输出类似:
> new_duration(secs = -1, mins = -1, hours = -1)
[1] "-1 hours, -1 minutes and -1 seconds"
但是当我运行duration(-1, "days")
时,R返回:
[1] "86400s (~1 days)"
怎么回事?
https://stackoverflow.com/questions/50652262
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