interpolate data every 5 minutes in matlab

Assuming you have a time series data y with timestamps t, follow the steps below to interpolate data every 5 minutes:

1. Convert t to a datetime array:

main.m
t = datetime(t,'ConvertFrom','datenum');
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2. Create a new time array with datetime interval of 5 minutes:

main.m
t_new = t(1):minutes(5):t(end);
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3. Interpolate the data to new time array:

main.m
y_new = interp1(t,y,t_new);
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Here, interp1 is used for 1-D interpolation of y to t_new.

Your interpolated data is now available in y_new variable.