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

[Peter Dalgaard]

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
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