How to fix array indices must be positive integers or logical values

%I'm trying to read a wav file and plot in the time domain 

[y,fs] = audioread('Samuel_Pappalardo.wav')
t = linespace (0,length(y)/fs, length(y));
figure;
plot(t,y);

Answer 1

[Walter Roberson]

[y,fs] = audioread('Samuel_Pappalardo.wav')
t = (0:size(y,1)-1)/fs;
figure;
plot(t, y);

The above repairs a boundary condition in your time calculation.

It does not, however, repair any index problem. If you encountered an index problem it implies that you had an existing variable named plot or linspace or length

[Samuel Pappalardo]

Thank you so much

Answer 2

[Image Analyst]

See the FAQ for a thorough discussion of that error plus more.

https://matlab.fandom.com/wiki/FAQ#.22Subscript_indices_must_either_be_real_positive_integers_or_logicals..22