[Rd] Historical NA question

[Spencer Graves]

A fortune?  Spencer


On 5/4/2014 6:00 AM, Hadley Wickham wrote:
> Thanks Luke!
> Hadley
>
> On Sat, May 3, 2014 at 11:48 AM,  <luke-tierney at uiowa.edu> wrote:
>> Hint: Ross will be 60 this year.
>>
>> luke
>>
>>
>> On Sat, 3 May 2014, Hadley Wickham wrote:
>>
>>> Can anyone tell me what the significance of 1954 is in R's NA?
>>>
>>> Thanks!
>>>
>>> Hadley
>>>
>>>
>> --
>> Luke Tierney
>> Chair, Statistics and Actuarial Science
>> Ralph E. Wareham Professor of Mathematical Sciences
>> University of Iowa                  Phone:             319-335-3386
>> Department of Statistics and        Fax:               319-335-3017
>>     Actuarial Science
>> 241 Schaeffer Hall                  email:   luke-tierney at uiowa.edu
>> Iowa City, IA 52242                 WWW:  http://www.stat.uiowa.edu
>>