MATLAB: Extract a matrix out of another matrix with logiccal expression

Question

Hi

I have a matrix like F=[7 5;2 7;3 5;4 9;5 3;6 1;2 5;8 2;1 8;10 1]. I want to extract those rows in which the elements in column 1 are bigger than 5 like B=[7 5;5 3;6 1;8 2;10 1].

 It would be better If I can do it with loop function like for or if.
Thank you in advance.
Amir

Answer 1

F(F(:,1) >= 5, :);