Can't save values to array with for loop

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Caleb Nickens
Caleb Nickens 2021-1-29
评论： Caleb Nickens 2021-1-29
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?

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采纳的回答

Walter Roberson
Walter Roberson 2021-1-29
for j = 1 : N
I = I + Int(j);
disp(I)
all_I(j) = I;
end

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