matlab - Calling generic functions on rows of a matrix -

matlab - Calling generic functions on rows of a matrix -

i'd compute kernel matrices efficiently generic kernel functions in matlab. means need compute k(x,y) every row x of x , every row y of y. here matlab code computes i'd like, rather slow,

function k=compute_kernel( k_func, x, y ) m = size(x,1); n = size(y,1); k = zeros(m,n); = 1:m j = 1:n k(i,j) = k_func(x(i,:)', y(j,:)'); end end end

is there other approach problem, e.g. bsxfun variant calls function on every row taken x , y?

have tired pdist2 custom distance function?

p.s. best not utilize i , j variables in matlab

matlab machine-learning bsxfun