def preprocess_iawe(building, freq):
building.utility.electric = building.utility.electric.sum_split_supplies()
building = prepb.filter_out_implausible_values(
building, Measurement('voltage', ''), 160, 260)
building = prepb.filter_datetime(building, '7-13-2013', '8-4-2013')
building = prepb.downsample(building, rule=freq)
building = prepb.fill_appliance_gaps(building)
building = prepb.prepend_append_zeros(
building, '7-13-2013', '8-4-2013', freq, 'Asia/Kolkata')
building = prepb.drop_missing_mains(building)
building = prepb.make_common_index(building)
building = prepb.filter_top_k_appliances(building, k=6)
return building
building = prepb.filter_out_implausible_values(
building, Measurement('voltage', ''), 160, 260)
# optional. (required for iAWE) Note that this will remove motor as it does not have
# any data in this period
building = prepb.filter_datetime(
building, '7-13-2013', '8-4-2013')
# 2. downsample mains, circuits and appliances
building = prepb.downsample(building, rule='1T')
# 3. Fill large gaps in appliances with zeros and forward-fill small gaps
building = prepb.fill_appliance_gaps(building)
# optional. (required for iAWE)
building = prepb.prepend_append_zeros(
building, '7-13-2013', '8-4-2013', '1T', 'Asia/Kolkata')
# 4. Drop missing samples from mains
building = prepb.drop_missing_mains(building)
# TODO: for some datasets (e.g. UKPD), we'll have to find a common index
# for the subset of the appliances we want to use.
# 5. Find intersection of mains and appliance datetime indicies
building = prepb.make_common_index(building)
# 6. Contiguous blocks of datetimes
# could use nilmtk.stats.electricity.single.periods_with_sufficient_samples ?
# plot_missing_samples_using_bitmap(building.utility.electric)