## MATLAB: Attempted to access A(5); index out of bounds because numel(A)=4.

out of bounds

clc;

N = 100;

`w = 0.5;q = 0.01;r = 0.1;%%This is the transition matrix`

A = [cos(w) sin(w)/w; -w*sin(w) cos(w)];%%This is the process noise covariance

Q = [0.5*q*(w-cos(w)*sin(w))/w^3 0.5*q*sin(w)^2/w^2; 0.5*q*sin(w)^2/w^2 0.5*q*(w+cos(w)*sin(w))/w]; % This is the true initial value

x0 = [0;0.1]; X = zeros(2,N); % The true signal

Y = zeros(1,N); % Measurements

T = 1:N; % Time

x = x0;P=eye(2);

for i=1:N %kalman predict m(i) = A(i)*X(i) P(i) = A(i) * P(i) * A(i)’ + Q(i); end

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