Is there a way to get MATLAB to write out a certain number more than once without typing them individually

Hi Is there a way to get MATLAB to write out 20 lots of 1's 20 lots of 2's etc. without typing them out individually

[Rik]

You mean repmat? Or for-loops? (combine it with sprintf or fprintf)

[Waseem Hussain]

Sorry I don't know what you mean by that, could you show us an example of how I would do it

Answer 1

[James Tursa]

E.g.,

>> ones(1,20)
ans =
  Columns 1 through 18
     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1
  Columns 19 through 20
     1     1
>> ones(1,20)*2
ans =
  Columns 1 through 18
     2     2     2     2     2     2     2     2     2     2     2     2     2     2     2     2     2     2
  Columns 19 through 20
     2     2

[Waseem Hussain]

Now how would I put that under a single variable, say W

[James Tursa]

E.g.,

W = [ones(1,20);2*ones(1,20)];

or

W = ones(2,20);
W(2,:) = 2;

Or if you want columns of numbers, e.g.

W = [ones(20,1),2*ones(20,1)];

or

W = ones(20,2);
W(:,2) = 2;

[Rik]

It sounds like you would really benefit from a starter course on Matlab. Assigning and concatenating variables is probably in the first lesson of every tutorial.