Select some elements from a given matrix

Hello everyone, I have a matrix something like

m=[0.34,0.000009,0,2, 0,0.4,0.00087];

what i want is to pick randomly 3 elements from that matrix, i am really stuck , can anyone help?

Answer 1

[James Tursa]

Assuming you don't care about the order in which they are selected:

m(randperm(numel(m),3))

If you want to preserve the original ordering, then:

m(sort(randperm(numel(m),3)))