Changing a specific value in a matrix

Quick question :)

Have searched all over for a solution to this problem.

I would like to change a value in a matrix, it could as little as a 3x5 matrix for instance.

I request a x,y input where i would want a function to change the value (it could be from 0 to 1 or 9) in the matrix (2,4 for instance). I have found plenty of solutions where you change all the 0's to 1's but not a specific target.

Thanks in advance

Answer 1

[Mahdi]

Let your data be in matrix A, and x,y are the indices where you want to change the value

A(x,y)=2 %2 is just a random number I chose.

[Mirko]

Oh god that was easy! Thanks alot for the help :)

*Rest his head in shame!!