unit not updated when multiplying by rate

[bl-young]

in attribution_method: multiplication, units are updated when the original data point is a rate, but not the attribution source is a rate

flowsa/flowsa/flowby.py

Lines 1238 to 1254 in 0d44ae9

	# set new units, incorporating a check that units are correctly
	# converted
	rate = None
	if fb['Unit'].str.contains('/').all():
	rate = 'Unit'
	other = 'Unit_other'
	elif fb['Unit_other'].str.contains('/').all():
	rate = 'Unit_other'
	other = 'Unit'
	if rate is not None:
	fb['Denominator'] = fb[rate].str.split("/").str[1]
	fb[rate] = fb[rate].str.split("/").str[0]
	if fb[other].equals(fb['Denominator']) is False:
	log.warning('Check units being multiplied')
	else:
	log.info(f"Units reset to"
	f" {fb[rate].drop_duplicates().tolist()}")