Question

MATLAB - adding vectors randomly inside another vector

How do you add random vectors inside another vector without changing the size? I am looking for it to be both vertical and horizontal, without adding any rows or columns.

Say I want to add [6, 6, 6, 6, 6, 6] into a large vector of zeros that is 10x10. How would I do so? Both horizontally and vertically?

I want to place the [6,6,6,6,6,6] vector inside of a vector of 10x10 zeroes. I want it so the program does it randomly. I want it so it doesnt change the size of the 10x10 zero vector. I have made a code that does so already but sometimes changes the dimensions of the 10x10 zero vector.

play_board = zeros(10);

row1 = randi(size(play_board, 1),1,1);

col1 = randi(size(play_board, 2),1,1);

direction = randi(2, 1, 1); % 1 for vertical, 2 for horizontal.

row2 = row1 + length(submarine) - 1;

col2 = col1;

play_board(row1:row2, col1) = submarine(1);

But occasionally this changes the dimnesions of play_board. I want play_board to remain 10x10 with the [6,6,6,6,6,6] vector inside

Just a note submarine is submarine = [3, 3, 3]