why do i get "Array indices must be positive integers or logical values " and how do i solve it ?
22 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
theta = [0:23] * pi/12 + 3*pi/8;
x = ones(1, 24) + sin(theta);
X = fft(x) / 24;
X_period = X([-11:12]);
disp('X[k] for one period =');
disp(X_period);
Array indices must be positive integers or logical values.
1 Kommentar
Dyuman Joshi
am 3 Dez. 2023
As the error message states - "Array indices must be positive integers or logical values."
X_period = X([-11:12]);
Here, you have provided negative values and 0 as indices, which is not allowed. That's why you get the error.
To resolve the error, don't provide values that are not allowed.
Antworten (1)
cr
am 3 Dez. 2023
Bearbeitet: cr
am 18 Mär. 2024
your X_period should equal to
X(1:24)
If you want to view it shifted you can have
idx = -11:12;
and either use
plot(idx,X)
or if you rather just display the numbers in text,
[idx; X]'
2 Kommentare
Steven Lord
am 3 Dez. 2023
0 is not a valid linear index in MATLAB. Linear indices must be positive integer values, not non-negative.
Siehe auch
Kategorien
Mehr zu Logical finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!