Mercurial > hg > smallbox
view util/ksvd utils/rowlincomb.m @ 219:4337e28183f1 luisf_dev
Modified help comments of wrapper_mm_DL.m, wrapper_mm_solver.m, SMALL_rlsdla.m & SMALL_AudioDenoise_DL_test_KSVDvsSPAMS.m. Moved wrapper_ALPS_toolbox from toolboxes to toolboxes/alps and added some extra help comments.
author | Aris Gretsistas <aris.gretsistas@elec.qmul.ac.uk> |
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date | Fri, 23 Mar 2012 20:48:25 +0000 |
parents | c3eca463202d |
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%ROWLINCOMB Linear combination of matrix rows. % Y = ROWLINCOMB(X,A,ROWS) computes a linear combination of the rows of % the matrix A. The row indices are specified in the vector ROWS, and the % correspoinding coefficients are specified in the vector X. The vectors % ROWS and X must be of the same length. The call Y = ROWLINCOMB(X,A,ROWS) % is essentially equivalent to the command % % Y = X'*A(ROWS,:) . % % However, it is implemented much more efficiently. % % Y = ROWLINCOMB(X,A,ROWS,COLS) only works on the columns of A specified % in COLS, returning a vector of length equal to COLS. This call is % essentially equivalent to the command % % Y = X'*A(ROWS,COLS) . % % See also COLLINCOMB. % Ron Rubinstein % Computer Science Department % Technion, Haifa 32000 Israel % ronrubin@cs % % April 2009