def check_buy():
begin_date = datetime.datetime(2014, 11, 18)
end_date = datetime.datetime(2014, 12, 17)
data_dir = utils.get_data_dir(utils.FLAG_TRAIN_TEST)
cf_dir = utils.get_data_dir(utils.FLAG_CF)
frate_str = "%s/rate_%s_%s" % (cf_dir, begin_date.strftime("%m%d"), end_date.strftime("%m%d"))
user_ids_list, item_ids_list, user_ids_dict, item_ids_dict = bcbf.compute_user_item_list(frate_str)
rate_matrix = io.mmread("data")
rate_matrix = rate_matrix.tolil()
buy_date = datetime.datetime(2014, 12, 18)
fbuy_str = "%s/data_buy_%s" % (data_dir, buy_date.strftime("%m%d"))
count = 0
with open(fbuy_str) as fin:
for line in fin:
cols = line.strip().split(",")
user = cols[0]
item = cols[1]
if item in item_ids_dict and user in user_ids_dict:
u_ix = user_ids_dict[user]
i_ix = item_ids_dict[item]
print >> sys.stdout, "%s,%s,%d" % (user, item, rate_matrix[(u_ix, i_ix)])
else:
count += 1
def get_new_items_in_purchase(frate_str,fbuy_str):
rate_matrix = io.mmread('data')
rate_matrix = rate_matrix.tocsc()
user_ids_list,item_ids_list,user_ids_dict,item_ids_dict = bccf.compute_user_item_list(frate_str)
item_set = set()
new_item_num = 0
new_item_n = 0
with open(fbuy_str) as fin:
for line in fin:
cols = line.strip().split(',')
item_set.add(cols[1])
count = 0
print item_set
for item in item_set:
count += 1
"""
print 'count'+str(count)
print item
"""
if item not in item_ids_dict:
new_item_n +=1
else:
i_ix = item_ids_dict[item]
"""
print i_ix
print np.count_nonzero(rate_matrix[:,i_ix])
"""
"""
if np.count_nonzero(rate_matrix[:,i_ix]) == 0:
new_item_num+=1
"""
print 'hah'
print >> sys.stdout, 'new items is %d ' %(new_item_num)
print >> sys.stdout, 'new items is %d ' %(new_item_n)
print >> sys.stdout, 'total items (rm dup) %d' %(len(item_set))
