any size of matrix

Hi! I have a matrix of 5X5 as my input matrix I want to create array of ones of 5X5 I=ones(length(M)); where M is my input matrix.If my input matrix is 7X9 I=ones(size(M)); is there any other way of writing it in more general form if we give any number of rows or columns. say I want to give 9X10 as my input matrix I want to create array of ones of 9X10.

Answer 1

[Jon]

Kinda confusing what you're asking.

If your input matrix is M, just write

ones(size(M))

for a matrix of ones the same size as your input matrix.

If you don't have an input matrix to get the size, and want a matrix of ones that is 3 x 6, write

ones(3,6)

If I didn't answer your question, it's because it wasn't very clear. You should read this: http://www.mathworks.com/help/matlab/ref/ones.html