matlab - ??? Undefined function or method 'det' for input arguments of type 'double' and attributes 'full 3d real - 


for j=1:length(idf)    dx = xf(1,j)- xv(1);    dy = xf(2,j)- xv(2);    d2 = dx^2 + dy^2;    d = sqrt(d2);    z_est(:,j) = [d;atan2(dy,dx)-xv(3)];    s(:,:,j) = hf(:,:,j) * pf(:,:,j) * hf(:,:,j)' + r  end        v = zf - z_est; %innovation   v(2,:) = pi_to_pi(v(2,:));   w= 1; n = 1:size(zf,2)   den = 2*pi*sqrt(det(s));   neu = exp(-0.5 * v(:,n)' * inv(s) * v(:,n));   w = w*(neu/den); end

my program on computing weight of state particles according particle filtering,at start runs , calculate w,bt after sometime shows error ??? undefined function or method 'det' input arguments of type 'double' , attributes 'full 3d real'' . cant figure out problem.

you need give det square matrix not 3d 1 (s 3d array). assume meant write instead:

den = 2*pi*sqrt(det(s(:,:,n));

so @ given loop iteration det of slice of s being calculated.


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