compare 2 vectors and classify them

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Francisco Anaya
Francisco Anaya 2019-4-3
评论： madhan ravi 2019-4-3
I have an array of 90872x2 double. As follows:
A= B=
1 2
1 2
1 2
1 1
1 1
1 1
1 1
2 1
2 1
2 1
2 1
1 2
1 2
1 2
1 2
1 1
1 1
1 1
2 2
2 2
I want to create a column C with the following values accordinf to the following conditions:
1= when A==1 and B==1;
2= when A==1 and B==2;
3= when A==2 and B==1;
4= when A==2 and B==2;
Therefore I will have:
A= B= C=
1 2 2
1 2 2
1 2 2
1 1 1
1 1 1
1 1 1
1 1 1
2 1 3
2 1 3
2 1 3
2 1 3
1 2 2
1 2 2
1 2 2
1 2 2
1 1 1
1 1 1
1 1 1
2 2 4
2 2 4
any help?
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Francisco Anaya
Francisco Anaya 2019-4-3
编辑：Francisco Anaya 2019-4-3
Im sorry you are right, the conditions are:
1= when A==1 and B==1;
2= when A==1 and B==2;
3= when A==2 and B==1;
4= when A==2 and B==2;
Therefore I need:
A= B= C=
1 2 2
1 2 2
1 2 2
1 1 1
1 1 1
1 1 1
1 1 1
2 1 3
2 1 3
2 1 3
2 1 3
1 2 2
1 2 2
1 2 2
1 2 2
1 1 1
1 1 1
1 1 1
2 2 4
2 2 4
I CORRECTED the ortiginal questions. Can you please help me?

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采纳的回答

madhan ravi
madhan ravi 2019-4-3
编辑：madhan ravi 2019-4-3
C = 1 * (A==1 & B==1) + 2 * (A==1 & B==2) +...
3 * (A==2 & B==1) + 4 * (A==2 & B==2)

更多回答（1 个）

KSSV
KSSV 2019-4-3
C = A ;
C(A ==1 & B == 1) = 1 ;
C(A ==1 & B == 2) = 2 ;
C(A ==2 & B == 1) = 3 ;
C(A ==2 & B == 2) = 4 ;

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