Can't save values to array with for loop

function traprule = traps(fr,y,a,b)

format long
dx = (1/fr); % fr = frequency in Hz
N = ((b + a)/dx) + 1; % creating N trapezoids to match number of time intervals
x = a +[0:N - 1]*dx;

if abs(b - a) < eps | N <= 0, traprule = 0;
    return
end

w = [ 0.5 ones(1,N-2) 0.5 ]; % w = weight

for i = 1 : N 

    Int(i) = (w(i).*y(i))*dx; %calculates integral
    
end
I = 0;
for j = 1 : N
    I = I + Int(j);
    disp(I)
end

This function is meant to integrate acceleration vs time data to obtain velocity vs time data. I want to save "I" values in the final for loop to a table or array but do not know how to achieve this. Is there a simpler method?

Answer 1

[Walter Roberson]

for j = 1 : N
    I = I + Int(j);
    disp(I)
    all_I(j) = I;
end

[Caleb Nickens]

Thank you for your help.