MATLAB: Matching strings in a matrix of m x n and then sorting

facebookmatchingNetworksorting

Hey all,
 this is my first post at the forum. kindly ignore the mistakes if any.
i have been finding a way to match few keywords or strings in a matrix and if that keyword is matched the whole row , i.e all the field values in that row of matrix will be separated out to a new matrix. and all those similar rows which satisfy the keywords wil make a new matrix.  kidnly note that strings can be more than one .
for e.g
i have to separate out all the packets with the term 'facebook' in them and i have the matrix like
     no        field1                     field2
      1       www.facebook.com             user1
      2        www.gmail.com               user2
      3        www.kasperksy.com           user2
      4        www.google.com              user4
and if i want to sort out all the rows (into a new matrix) in which 'facebook' and 'gmail' occur , what do i need to do . please guide me along , i dont ask for the full code just help me out how to start with.

Best Answer

K = {1       'www.facebook.com'            'user1'
      2        'www.gmail.com'               'user2'
      3        'www.kasperksy.com'           'user2'
      4        'www.google.com'              'user4' }
out = K(~cellfun('isempty',regexp(K(:,2),'(facebook)|(gmail)')),:)
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