[R] Error in cor.default(x1, x2) : missing observations in cov/cor

[Ken Spriggs]

I get the following 

> class(x1)
[1] "numeric"
> class(x2)
[1] "numeric"

and:

> cor(x1,x2)
Error in cor.default(x1, x2) : missing observations in cov/cor
> traceback()
2: cor.default(x1, x2)
1: cor(x1, x2)



Peter Dalgaard wrote:
> 
> Ken Spriggs wrote:
>> Hello,
>>
>> I'm trying to do cor(x1,x2) and I get the following error:
>> Error in cor.default(x1, x2) : missing observations in cov/cor
>>
>> A few things:
>> 1.  I've used cor() many times and have never encountered this error.
>> 2.  length(x1) = length(x2)
>> 3.  is.numeric(x1) = is.numeric(x2) = TRUE
>> 4.  which(is.na(x1))  = which(is.na(x2)) = integer(0)   {the same goes
>> for
>> is.nan()}
>> 5.  I also try cor(x1,x2, use = "all.obs") and get the same error.
>>
>> What can be going wrong?
>>
>>
>>   
> Er, this is strange. As far as I can see, cor is not normally generic, and
> 
>  > getAnywhere("cor.default")
> no object named ‘cor.default’ was found
> 
> so something is not normal. What do you get from a traceback() after the 
> error, which is your cor.default, and what is the class of x1 and x2? Do 
> you perchance have some special packages loaded?
> 
> -- 
>    O__  ---- Peter Dalgaard             Øster Farimagsgade 5, Entr.B
>   c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
>  (*) \(*) -- University of Copenhagen   Denmark          Ph:  (+45)
> 35327918
> ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)                  FAX: (+45)
> 35327907
> 
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