index exceeded matrix dimensions please help

1 次查看（过去 30 天）

dulanga 2019-4-16

关闭： MATLAB Answer Bot 2021-8-20

I get this error what should i do to correct this?

Index exceeds matrix dimensions.

Error in t31 (line 11)

F1=Fmag((N/2)+1:N);

my code

N=length(t);
Fshifted=fftshift(F);
Fmag=norm(Fshifted);
F1=Fmag((N/2)+1:N);
F2=Fmag(N/2:-1:1);

per isakson 2019-4-16

((N/2)+1:N) is greater than 1

Fmag is a scalar

Thus the error

Walter Roberson 2019-4-16

Do not use norm() to find the magnitude of the spectrum. Use abs() .

Find the treasures in MATLAB Central and discover how the community can help you!

Translated by