Storing results from a for loop

Question

maria 2013-12-3

评论： maria 2013-12-3

hi, i would like to store the data of a calculation done in a for loop similarly to this http://blogs.mathworks.com/videos/2011/03/09/how-to-store-a-series-of-vectors-from-a-for-loop/ .specifically i need to create a row vector for my results as it is shown in the following code: for x=1:4; for y=1:4; f=2*x+y-1; matf(:,x*y)=f; end end

I run the code without matf(:,x*y), by writing f(x,y) so i know that the correct answer should be: matf=2 4 6 8 3 5 7 9 4 6 8 10 5 7 9 11

Instead of that i get: matf=2 4 6 8 0 7 0 9 8 0 0 10 0 0 0 11

I 'm thinking it must be something with the y iretation but i can't figure it out. can you please help me out?

Answer 1

Wayne King 2013-12-3

编辑：Wayne King 2013-12-3

 k = 1; 
 for x=1:4; for y=1:4; 
         f(k)=2*x+y-1;
          k = k+1;
     end
 end

Now look at f

maria 2013-12-3

yes it worked, thanks :)