[R] how to transform m/d/yyyy to yyyymmdd?

[Whit Armstrong]

warmstrong at research:~$ R
> strptime("12/9/2007","%m/%d/%Y")
[1] "2007-12-09"
> format(strptime("12/9/2007","%m/%d/%Y"),"%Y%m%d")
[1] "20071209"
>



On Tue, Jul 21, 2009 at 1:16 PM, liujb<liujulia7 at yahoo.com> wrote:
>
> Hello,
>
> I have a set of data that has a Date column looks like this:
> 12/9/2007
> 12/16/2007
> 1/1/2008
> 1/3/2008
> 1/12/2008
> etc.
>
> I'd like the date to look something like the follow (so that I could sort by
> date easily).
> 20071209
> 20071216
> 20080101
> 20080103
> 20080112
>
> How to do it? Thank you very much
> Julia
> --
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>
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