Two Subplots in an Animated For-loop Problem
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Hi! I am new to Matlab and trying to learn more each day, and have some issues regarding making both of my subplots play at the same time. For the first plot, I searched for the peaks and valleys and plot them as the data recognized them as peaks/valleys, and have no problem with it. However, the second plot that I want to show is the displacement gathered from the peaks and valleys and show them when the first plot passes through the peaks/valleys. I also don't know how to incorporate the code for it, and I only know to use "comet()" on it but still not what i am looking for. My problem is in the for loop I made. Can you help me? Thanks in advance!
figure(3);
subplot (2,1,1)
h = plot(time(1), mag(1)); hold on; % Start with the first data point
ylabel('Acceleration');
title('Real-time Signal Analysis');
h.XDataSource = 'x1'; % Set the data source properties for dynamic updating
h.YDataSource = 'y1';
for i = 1:200:numel (time)
x1 = time(1:i);
y1 = mag(1:i);
refreshdata(h, 'caller');
drawnow;
[pks, locs] = findpeaks (mag,'MinPeakDistance',1500);
[vks, vlocs] = findpeaks (-mag, 'MinPeakDistance',1300);
vks = -vks;
valid_vks_indices = vlocs (time(vlocs) <= x1 (end));
valid_pks_indices = locs (time(locs) <= x1 (end));
if ~isempty (valid_vks_indices)
plot (time(valid_vks_indices), vks(ismember(vlocs, valid_vks_indices)), 'or');
end
if ~isempty (valid_pks_indices)
plot (time(valid_pks_indices), pks (ismember(locs, valid_pks_indices)), 'or');
end
pause(0.001);
subplot (2,1,2);
xlabel ('Time'); ylabel('Displacement');
for j = i
vel = cumtrapz (time, mag);
vel = filtfilt (b2, a2, vel);
disp = cumtrapz (time, vel);
disp = filtfilt (b2, a2, disp);
plot (time, disp)
end
end
4 Comments
Angelo Yeo
on 1 Feb 2024
Your code doesn't work. Can you check the following lines?
plot (time (vks), mag (ismember 'or')
plot (time, mag, x_pks, y_pks, 'or')
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