I would do it this way:
fidi = fopen('file.dat', 'rt'); % Open File For Reading Text
Dc = textscan(fidi, '%f', 'CollectOutput',true); % Change ‘textscan’ Arguments To Match Your File
D = cell2mat(D); % Create Numeric Array
Fs = 8E+3; % Sampling Frequency (cycles/time unit)
Ts = 1/Ts; % Sampling Interval (time unit/cycle)
t = linspace(0, 1, length(D))*Ts; % Time Vector (Delete If You Saved Your Time Vector In Your File)
figure(1)
plot(t, D) % Plot Your Data
grid
Note — This is quite obviously UNTESTED CODE. A version of it should work. You will have to experiment with it with your data.
See the documentation for the various functions to understand how to use them, and how they work.
