How can i insert a vector in a position into a matrix that already has values?

Example: i have the matrix [2 5 1 2;4 2 1 3; 5 3 2 1; 6 3 2 1] and the vector [1 1 1 1] i want to insert the vector at row 2 the matriz will be [2 5 1 2; 1 1 1 1; 4 2 1 3; 5 3 2 1; 6 3 2 1] it is possible? i can do a implement, but if already have a command i'm grateful.

Answer 1

[jonas]

A is your matrix

B is your vector

out=[A(1,:);B;A(2:end,:)];

[Emilcy Felipe C de Paula]

Awesome, i'm very thankful.

Answer 2

[Matt J]

A=[2 5 1 2;4 2 1 3; 5 3 2 1; 6 3 2 1]; 

clear B
B([1,3:5,2],:) = [A; [1 1 1 1] ]