annotate examples/private/add_dc.m @ 5:f44689e95ea4

(none)
author idamnjanovic
date Mon, 22 Mar 2010 10:43:01 +0000
parents 7750624e0c73
children
rev   line source
idamnjanovic@1 1 function x = add_dc(y,dc,columns)
idamnjanovic@1 2 %ADD_DC Add DC channel to signals.
idamnjanovic@1 3 % X = ADD_DC(Y,DC) adds the specified DC value to the (possibly
idamnjanovic@1 4 % multi-dimensional) signal Y, returning the result as X. DC should be a
idamnjanovic@1 5 % scalar value.
idamnjanovic@1 6 %
idamnjanovic@1 7 % X = ADD_DC(Y,DC,'columns') where Y is a 2D matrix and DC is an array of
idamnjanovic@1 8 % length size(Y,2), treats the columns of Y as individual 1D signals,
idamnjanovic@1 9 % adding to each one the corresponding DC value from the DC array. X is
idamnjanovic@1 10 % the same size as Y and contains the resulting signals.
idamnjanovic@1 11 %
idamnjanovic@1 12 % See also REMOVE_DC.
idamnjanovic@1 13
idamnjanovic@1 14 % Ron Rubinstein
idamnjanovic@1 15 % Computer Science Department
idamnjanovic@1 16 % Technion, Haifa 32000 Israel
idamnjanovic@1 17 % ronrubin@cs
idamnjanovic@1 18 %
idamnjanovic@1 19 % April 2009
idamnjanovic@1 20
idamnjanovic@1 21
idamnjanovic@1 22 if (nargin==3 && strcmpi(columns,'columns')), columns = 1;
idamnjanovic@1 23 else columns = 0;
idamnjanovic@1 24 end
idamnjanovic@1 25
idamnjanovic@1 26 if (columns)
idamnjanovic@1 27 x = addtocols(y,dc);
idamnjanovic@1 28 else
idamnjanovic@1 29 x = y + dc;
idamnjanovic@1 30 end
idamnjanovic@1 31
idamnjanovic@1 32
idamnjanovic@1 33