r语言怎么改dateframe符合网页查看？

Question

r语言怎么改dateframe符合网页查看

Answer 1

> format(t$dates[1], "%Y")
[1] "2011"
> format(t$dates[1], "%m")
[1] "01"
> format(t$dates[1], "%d")
[1] "29"