Trouble with time lag between peaks

It sounds like you're trying to find and visualize the time lag between the peaks in two datasets. Here’s a step-by-step approach you can follow using MATLAB:

1. Find Peaks in Both Datasets:
   Use the `findpeaks` function to identify the peaks in both series.

   
   [pks_x, locs_x] = findpeaks(x, 'MinPeakDistance', 8);
   [pks_y, locs_y] = findpeaks(y, 'MinPeakDistance', 8);
   

2. Compute Time Lag:
   Calculate the time lags between corresponding peaks in `x` and `y`.

   
   time_lag = locs_y - locs_x;
   

3. Plot the Time Lag:
   Plot the time lag to visualize the differences.   

plot(locs_x, time_lag, 'o-');
   xlabel('Time (s)');
   ylabel('Time Lag (s)');
   title('Time Lag Between Peaks in x and y');

You might need to adjust the `MinPeakDistance` parameter in `findpeaks` according to your data. The example above assumes a distance of 8 based on your description.