1 %% Copyright (c) 2011, INRA
2 %% 2004-2011, David Legland <david.legland@grignon.inra.fr>
3 %% 2011 Adapted to Octave by Juan Pablo Carbajal <carbajal@ifi.uzh.ch>
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35 %% @deftypefn {Function File} {@var{vn} = } normalizeVector (@var{v})
36 %% Normalize a vector to have norm equal to 1
38 %% Returns the normalization of vector @var{v}, such that ||@var{v}|| = 1.
39 %% @var{v} can be either a row or a column vector.
41 %% When @var{v} is a MxN array, normalization is performed for each row of the
47 %% vn = normalizeVector([3 4])
55 %% @seealso{vectors2d, vectorNorm}
58 function vn = normalizeVector(v)
62 if dim(1)==1 || dim(2)==1
63 vn = v / sqrt(sum(v.^2));
65 %same as: vn = v./repmat(sqrt(sum(v.*v, 2)), [1 dim(2)]);
66 vn = bsxfun(@rdivide, v, sqrt(sum(v.^2, 2)));
71 %!assert (1,vectorNorm (normalizeVector ([3 4])))