How to insert a matrix to another matrix ?

조회 수: 22 (최근 30일)
Parijat
Parijat 2013년 10월 24일
답변: Andrei Bobrov 2013년 10월 24일
i have a 5 by 1 matrix A=[1,2,3,4,5] Now there is another matrix B say 5 by 5 matrix. i want matrix A to insert into matrix B such that matrix A's 1st column still has the values 1,2,3,4,5 and the rest of the columns will have the values of matrix B.
Thanks in advance

답변 (3개)

Neil Caithness
Neil Caithness 2013년 10월 24일
A = [1,2,3,4,5];
B = randi(5,5);
Your A is a row vector, not a column. You can use transpose A'
C = [A' B]
C =
1 3 4 3 5 1
2 1 5 1 3 1
3 3 4 2 5 4
4 5 4 2 4 3
5 1 2 2 2 5

ES
ES 2013년 10월 24일
Your question is little unclear. If you want Matrix B's first column replaced by A then,
A is 5X1 B is 5X5
B=[A B(:,2:end)]

Andrei Bobrov
Andrei Bobrov 2013년 10월 24일
A = (1:5)'
B = randi(25,5);
B(:,1) = A;

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