code to form a matrix by selecting some elements in another matrix

i have a matrix with me which is a rectangular matrix of size 14*13. now i need to select some elements randomly from this matrix and form another matrix of size 14*13. can u give me the code for this as soon as possible.

[Evan]

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Answer 1

[Evan]

Look into the randi function.

Answer 2

[Azzi Abdelmalek]

y=rand(14,13)   % Example
out=y(randperm(14*13,13))'

Answer 3

[Sanjay Lodwal]

i think it is not possible. if you want random matrix random function is best.

>>y=rand(14,13);

or A is old matrix.

for m = 1:14
  for n = 1:13
    B(m,n)=A(floor(rand(1)*14*13));
  end
end