Message-ID: <20807696.post@talk.nabble.com>
Date: 2008-12-03T06:50:02Z
From: Dieter Menne
Subject: Null values In R.
In-Reply-To: <a193e6ca0812022033v41ebbc87u4b71528bbe8f6725@mail.gmail.com>
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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