How to insert a matrix to another matrix ?

12 vues (au cours des 30 derniers jours)
Parijat
Parijat le 24 Oct 2013
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

Réponses (3)

Neil Caithness
Neil Caithness le 24 Oct 2013
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 le 24 Oct 2013
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 le 24 Oct 2013
A = (1:5)'
B = randi(25,5);
B(:,1) = A;

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