Re: [Rd] Historical NA question

2014-05-04 Thread Hadley Wickham
Thanks Luke!
Hadley

On Sat, May 3, 2014 at 11:48 AM,   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 andFax:   319-335-3017
>Actuarial Science
> 241 Schaeffer Hall  email:   luke-tier...@uiowa.edu
> Iowa City, IA 52242 WWW:  http://www.stat.uiowa.edu



-- 
http://had.co.nz/

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Re: [Rd] Historical NA question

2014-05-04 Thread 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,   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 andFax:   319-335-3017
Actuarial Science
241 Schaeffer Hall  email:   luke-tier...@uiowa.edu
Iowa City, IA 52242 WWW:  http://www.stat.uiowa.edu



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Re: [Rd] Historical NA question

2014-05-04 Thread Michael Friendly

On 03/05/2014 12:39 PM, Hadley Wickham wrote:

Can anyone tell me what the significance of 1954 is in R's NA?



Just ask R:

> 2*(1-pnorm(1954))
[1] 0
> 2*(1-pnorm(1954)) %in% NA
[1] 0
>

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