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% Read in data from text file with readmatrix()
data = readmatrix('t2.txt');
% Extract time into vector t, and the signal into vector y.
y = data(:, 1);
t = data(:, 2);
% Find out what indexes are between time1 and time2.
time1 = 0.52;
time2 = 0.54;
indexes = (t >= time1) & (t <= time2);
% Extract only those data into new vectors.
yExtracted = y(indexes);
tExtracted = t(indexes);
