get_group_end(end_date, interval=30)
Get interval group end time
make_set_interval(readings, new_interval=5)
Generate equally spaced values at 5-min intervals
new_intervals(start_date, end_date, interval=5)
Generate equally spaced intervals between two dates
split_multiday_reads(readings)
Split readings into daily intervals if they exceed 24 hours
split_reading_into_days(start, end, val)
Split a single reading into even daily readings