removing equal elements from a matrix

Hi all,

I have a matrix like "a" whose some elemnts are equal to each other. I wato to transform this matrix to a vector like "b" with non-equal elements.

e.g. a=[ 1 2 3 ; 3  4 5; 6 4 7];  >> b=[1 2 3 4 5 6 7];

How can I write this program? Thanks in advance.

Answer 1

[Azzi Abdelmalek]

a=[ 1 2 3 ; 3  4 5; 6 4 7]; 
b=unique(a(:))'

[Andrei Bobrov]

unique(a)

[som]

Thanks a lot