[R] Convert number to Date

[Rolf Turner]

On 26/03/2010, at 12:23 PM, Achim Zeileis wrote:

> Sorry for coming so late to this thread. One possible explanation for the 
> R side is the following...
> 
> 
> On Thu, 25 Mar 2010, Marc Schwartz wrote:
> 
>> On Mar 25, 2010, at 5:41 PM, Joshua Wiley wrote:
>> 
>>>> Kind of off the thread a bit, but when I do:
>>>> 
>>>>> as.Date(40182)
>>>> 
>>>> I ***do not*** get "2080-01-06".  Instead I get an error:
>>>> 
>>>> Error in as.Date.numeric(40182) : 'origin' must be supplied
> 
> Yes, that is when you use base R's as.Date.numeric() but package "zoo" 
> overloads that:
> 
> R> as.Date(40182)
> Error in as.Date.numeric(40182) : 'origin' must be supplied
> R> library("zoo")
> R> as.Date(40182)
> [1] "2080-01-06"


Ah-ha!!!  So Anna must have had zoo loaded when she did her as.Date() command.

All is in harmony.  OMMMMMMMMMMMMMMMMMM!!!

Thanks for that.

	cheers,

		Rolf
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