Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
173 views
in Technique[技术] by (71.8m points)

r - Change numeric vector into specific date

I have got a vector like 0 20 365 390 and would like to convert into the date that would occur if that many days has passed so for some origin day (2007-01-01) would be 2007-01-01 2007-01-21 2008-01-01 2008-02-26. How would I quickly do that in R?

question from:https://stackoverflow.com/questions/65617473/change-numeric-vector-into-specific-date

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

You can do this like so:

dat <- as.Date('2007-01-01') 
dat + c(0,20, 365, 390)
#> [1] "2007-01-01" "2007-01-21" "2008-01-01" "2008-01-26"

You will discover that the last element of the result is different to your expected output.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...