从两个向量创建 function 句柄以传递给 MATLAB 中的积分 function

Question

I'm not sure if I'm being thick here, but I'm not used to function handles etc.

I am trying to find the integral of some raw accelerometer data i have, and was advised by a friend that using Simpsons might be the best way. So i found that MATLAB has the "quad()" function but it accepts a function handle as a parameter.

If i have two vectors, one for time, one for acceleration, how can i create them into a function handle to send to quad()?

Thanks

Answer 1

Use one of these two

f = @(x) sin(x);
x = linspace(a,b,200);
y = f(x);               % values at f(x)

s1 = trapz(x,y);        % you can use trapz
s2 = integral(f,a,b);   % you can use integral

Compare the results. Experiment