Thursday, March 4, 2010

Deleting empty rows in a matrix

>> a = [1,2,3;4,5,6;0,7,8;0,0,0;0,0,0]

a =
     1     2     3
     4     5     6
     0     7     8
     0     0     0
     0     0     0

>> b = a(any(a,2),:)

b =

     1     2     3
     4     5     6
     0     7     8
>> b = a(all(a,2),:)

b =

     1     2     3
     4     5     6
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