idamnjanovic@15: %SPROW Extract row of sparse matrix.
idamnjanovic@15: %  X = SPROW(A,J) where A is a sparse matrix, returns the nonzero values in
idamnjanovic@15: %  the row A(J,:).
idamnjanovic@15: %
idamnjanovic@15: %  [X,ID] = SPROW(A,J) also returns the column indices of the nonzeros.
idamnjanovic@15: %
idamnjanovic@15: %  Note that the call [X,ID] = SPROW(A,J) is equivalent (but more efficient
idamnjanovic@15: %  than) the Matlab code
idamnjanovic@15: %
idamnjanovic@15: %    IDS = find(A(J,:)); 
idamnjanovic@15: %    X = A(J,IDS);
idamnjanovic@15: 
idamnjanovic@15: 
idamnjanovic@15: %  Ron Rubinstein
idamnjanovic@15: %  Computer Science Department
idamnjanovic@15: %  Technion, Haifa 32000 Israel
idamnjanovic@15: %  ronrubin@cs
idamnjanovic@15: %
idamnjanovic@15: %  August 2009