[R] Counting number of rain

[Duncan Murdoch]

On 01/10/2015 11:29 PM, Rolf Turner wrote:
> On 02/10/15 15:47, David Winsemius wrote:
> 
> <SNIP>
> 
>> On Oct 1, 2015, at 6:22 PM, Rolf Turner wrote:
>>>
>>> P.S. I have been unable to find a corresponding vector of the names
>>> of the days of the week, although I have a very vague recollection
>>> of the existence of such a vector.  Does it exist, and if so what
>>> is it called?
>>
>> It's could called up by strptime because it is mapped to a character
>> vector by the internationalization database:
>>
>>> format( as.Date(1:7)+2, format="%A")
>> [1] "Sunday"    "Monday"    "Tuesday"   "Wednesday" "Thursday"
>> "Friday" [7] "Saturday"
> 
> <SNIP>
> 
> When I try that (copying and pasting your code so that there's no chance 
> of fumble-fingering) I get:
> 
>> Error in as.Date.numeric(1:7) : 'origin' must be supplied
> 
> Why do these things always happen to *me*???

The zoo package replaces as.Date.numeric() with a function that assumes
an origin of "1970-01-01".  There may be other packages that also make a
replacement like this.  David appears to have one of them attached, and
you don't.

Duncan Murdoch