How can I logically index 3 conditions in a loop

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Hatice Sahin
Hatice Sahin 2019-5-15
评论： Hatice Sahin 2019-5-16
I have a simplified version of my data as;
d=[3 1
4 1
3 4
4 4
2 1
3 1
2 3
1 3
1 4];
first coloumn are the responses(1,2,3 or 4). second column are the error types(1,2,3 or 4).
I want to create a loop that gives me a logical matrix for indexing to use later in my analysis.
index_mat=if the first column is 3 or 4 and the second column is 1
index_mat2= if the first coloumn is 3 or 4 and the second column is 4
so I expect;
index_mat= 1 0 0 0 1 0 0 0
index_mat2= 0 1 1 0 0 0 0 0
Thank you

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采纳的回答

Fangjun Jiang
Fangjun Jiang 2019-5-15
and(or(d(:,1)==3, d(:,1)==4),d(:,2)==1)

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