normalize

NORMALIZE Normalize a vector.

   V2 = normalize(V);
   Returns the normalization of vector V, such that ||V|| = 1. V can be
   either a row or a column vector.

   When V is a MxN array, normalization is performed for each row of the
   array.

   See Also:
   vectors2d, normalizeVector, vectorNorm

0001 function vn = normalize(v)
0002 %NORMALIZE Normalize a vector.
0003 %
0004 %   V2 = normalize(V);
0005 %   Returns the normalization of vector V, such that ||V|| = 1. V can be
0006 %   either a row or a column vector.
0007 %
0008 %   When V is a MxN array, normalization is performed for each row of the
0009 %   array.
0010 %
0011 %   See Also:
0012 %   vectors2d, normalizeVector, vectorNorm
0013 %
0014 
0015 %   ---------
0016 %   author : David Legland
0017 %   INRA - TPV URPOI - BIA IMASTE
0018 %   created the 29/11/2004.
0019 %
0020 
0021 %   HISTORY
0022 %   14/01/2005 : correct bug
0023 
0024 
0025 dim = size(v);
0026 
0027 if dim(1)==1 || dim(2)==1
0028     vn = v/sqrt(sum(v.*v));
0029 else
0030     vn = v./repmat(sqrt(sum(v.*v, 2)), [1 dim(2)]);
0031 end