If you look at the help for predict.naiveBayes, you can see that newdata is
supposed to be a data.frame. However, you are providing newdata as a
vector, titanic_small[,-1]. Try using titanic_small[,-1, drop=FALSE]
instead.
Jean
On Tue, Mar 12, 2013 at 11:35 PM, S. Zhou <myx...@yahoo.com> wrote:
> titanic_small[,-1]
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