[R] Null values In R.

[Dieter Menne]

paul murima wrote:
> 
> 
> My problem is largely when i attempt to use correlation for my data...
> xcc <- cor(a);
> 
> The  error i get is as follows
> 
> Error in cor(a) : missing observations in cov/cor
> 

As Daniel suggested, it is always best to use the function's parameter to
handle NULLs. In other cases, it could help to do 

a <- na.omit(a)

but be careful: this may throw away to many rows when you have more than 2
columns.

Dieter


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