I need help setting my formula in a loop

I am having trouble setting this formula into my code and in my loop.

fs = 1000; % Hz
t = [1/fs:1/fs:length(COPNET_x)/fs];

n = length(COPNET_x);

%% Analyze data
        COPNET_x = data_grf(:,11);
        COPNET_z = data_grf(:,13);
        GRFNET_x = data_grf(:,5);
        GRFNET_y = data_grf(:,7);
        
        Rx = max(COPNET_x)- min(COPNET_x); %sway range in AP
        Rz = max(COPNET_z)-min(COPNET_z); % sway range in ML
    
    for i = 1:n
        
       Vel_AP = sum(abs(COPNET_x(i) - COPNET_x(i-1))/t)/n;
    end
    

Answer 1

[David Hill]

No loop is necessary for the equation

sum(abs(diff(AP)).*fs)/length(AP);% it appears that 1/deltaT = fs

[daniel choudhry]

How can I apply this formula also inside my code? Is a loop necessary for the equation?

[David Hill]

sum(sqrt(diff(AP).^2+diff(ML).^2).*fs)/length(AP);
%I am assuming this is what you want. Your equation seems to be missing some parentheses.

[daniel choudhry]

Thank you for your help!!