Dear R experts,
I have the data in the following fomat(from some kind of card sorting process)
ID Category Card numbers
1 1 1,2,5
1 2 3,4
2 1 1,2
2 2 3
2 3 4,5
I want to transform this data into two co-occurence matrix (one for each ID)
-- For ID 1
1 2 3 4 5
1 1 1 0 0 1
2 1 1 0 0 1
3 0 0 1 1 0
4 0 0 1 1 0
5 1 1 0 0 1
-- For ID 2
1 2 3 4 5
1 1 1 0 0 0
2 1 1 0 0 0
3 0 0 1 0 0
4 0 0 0 1 1
5 0 0 0 1 1
The columns and rows are representing the card numbers. All "0"s mean the card
numbers are not in the same category, vice versa.
Is there any way I can to this in R?
I would really appreciate your help.
Judie, Tie
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