def main():
logging.basicConfig(level=logging.INFO, format='%(message)s')
parser = argparse.ArgumentParser(description='Inspect price distributions')
parser.add_argument('prefix', help='Directory containing json files')
parser.add_argument('facet', help='Facet', choices=['age', 'none'])
args = parser.parse_args()
logging.info('Loading products...')
product_by_id = load_items(os.path.join(args.prefix, 'product.json'),
'product_id')
logging.info('Loading users...')
user_by_id = load_items(os.path.join(args.prefix, 'user.json'),
'user_id')
print '"facet","price"'
with open(os.path.join(args.prefix, 'review.json')) as f:
for line in f:
review = json.loads(line)
product = product_by_id[review['product_id']]
price = get_price(product)
if not price:
continue
user = user_by_id[review['user_id']]
fct = facet(review, product, user, args.facet)
if not fct:
continue
print '"{0}","{1}"'.format(fct, price)
def calculate(self, start_td, end_td):
cost_sum, unit_volum, start_td, end_td = self.start_passive_invest(
start_td, end_td, 30.4)
if cost_sum == 0 or start_td == end_td:
return {'Gain ratio': 0, 'Ann ret': 0,
'Start time': start_td, 'Inv period': 0,
'Unit vol': 0}
current_price = get_price(self.df, end_td.strftime('%Y-%m-%d'))
time_delta = end_td-start_td
period_y = time_delta.days/365
current_total_value = unit_volum*current_price
gain_ratio = (current_total_value-cost_sum)/cost_sum
annualized_return = ((1+gain_ratio)**(1/period_y))-1
return {'Gain ratio': gain_ratio, 'Ann ret': annualized_return,
'Start time': start_td, 'Inv period': period_y,
'Unit vol': unit_volum}
def is_valid_product(product):
if 'price' not in product or not product['price']:
return False
price = get_price(product)
if not price:
return False
product['price'] = price
if 'description' not in product or not product['description']:
return False
description = u' '.join(product['description'])
if INVALID_DESCRIPTION_SNIPPET in description:
return False
if ('categories' in product and
INVALID_CATEGORIES.intersection(product['categories'])):
return False
# TODO: remove food (e.g. 'サプリメント・フード')
return True