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

[Ken Spriggs]

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?


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