how can i initialize a matrix (20/5) with random 0 and 1s

matrix consist of random numbers between (-10,10) in binary

Answer 1

[José-Luis]

 result = rand(20,5);
 result = result > 0.5;

[reddysekharreddy sadu]

 can you please explain meaning of second line @joseluis

[José-Luis]

http://se.mathworks.com/help/matlab/ref/gt.html

rand gives numbers between 0 and 1. The second line will replace those numbers with 1 if they are larger than 0.5 and 0 otherwise.