You might look at the function confusion() in the DAAGxtras package.
John Maindonald email: john.maindon...@anu.edu.au
phone : +61 2 (6125)3473 fax : +61 2(6125)5549
Centre for Mathematics & Its Applications, Room 1194,
John Dedman Mathematical Sciences Building (Building 27)
Australian National University, Canberra ACT 0200.
http://www.maths.anu.edu.au/~johnm
On 09/03/2011, at 10:00 PM, r-help-requ...@r-project.org wrote:
> From: "Shi, Tao" <shida...@yahoo.com>
> Date: 9 March 2011 7:22:49 AM AEDT
> To: r-help@r-project.org
> Subject: [R] confusion matrix
>
>
> Hi list,
>
> Is there already a function somewhere to output the confusion matrix from two
> input vectors? "table" always automatically delete rows or columns with all
> 0's. For example, I would like the columns for "10" and "30" added back.
>
> Thanks!
>
> ...Tao
>
>
>
> 20 40 50 60 70 80 90 100
> 10 0 0 1 0 0 0 1 0
> 20 1 2 0 4 0 0 0 1
> 30 0 0 0 0 0 0 1 1
> 40 0 0 1 1 2 0 0 0
> 50 0 1 0 0 0 1 0 0
> 60 0 0 0 0 0 0 1 1
> 70 0 0 1 1 1 1 1 1
> 80 0 1 0 0 0 0 0 1
> 90 0 0 0 0 0 0 0 3
> 100 0 0 0 0 1 0 0 3
>
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