def test_too_many_counts(self):
fixture_path = os.path.join(self._fixtures_dir,'22kAmazonGameReview.txt')
words = filehandler.convert_to_txt(fixture_path)
counts = wordhandler.get_word_counts(words,True,True,'english')
self.assertEqual(len(counts[0]),wordhandler.MAX_ITEMS)
self.assertEqual(len(counts[1]),wordhandler.MAX_ITEMS)
self.assertEqual(len(counts[2]),wordhandler.MAX_ITEMS)
def test_too_many_counts(self):
fixture_path = os.path.join(self._fixtures_dir,
'22kAmazonGameReview.txt')
words = filehandler.convert_to_txt(fixture_path)
counts = wordhandler.get_word_counts(words, True, True, 'english')
self.assertEqual(len(counts[0]), wordhandler.MAX_ITEMS)
self.assertEqual(len(counts[1]), wordhandler.MAX_ITEMS)
self.assertEqual(len(counts[2]), wordhandler.MAX_ITEMS)
def process_words(words, ignore_case, ignore_stopwords, is_sample):
stopwords_language = 'english'
if g.current_lang == 'es':
stopwords_language = 'spanish'
elif g.current_lang == 'pt':
stopwords_language = 'portuguese'
elif g.current_lang == 'hu':
stopwords_language = 'hungarian'
counts = wordhandler.get_word_counts(words, ignore_case, ignore_stopwords,
stopwords_language)
return counts
def process_words(words, ignore_case, ignore_stopwords, is_sample):
stopwords_language = 'english'
if g.current_lang == 'es':
stopwords_language = 'spanish'
elif g.current_lang == 'pt':
stopwords_language = 'portuguese'
elif g.current_lang == 'hu':
stopwords_language = 'hungarian'
counts = wordhandler.get_word_counts(
words,
ignore_case,
ignore_stopwords,
stopwords_language)
return counts
def _process_words(words, ignore_case, ignore_stopwords, is_sample):
stopwords_language = NLTK_STOPWORDS_BY_LANGUAGE[g.current_lang]
counts = wordhandler.get_word_counts(words, ignore_case, ignore_stopwords,
stopwords_language)
return counts
def get_summary(self, language):
summary_start = time.time()
results = {}
if not self._csv_has_rows(self.input_path):
results['row_count'] = 0
results['columns'] = []
return results
start_time = time.time()
delim = self.detectDelimiter()
try:
tab = table.Table.from_csv(self.input_file, delimiter=delim, quotechar='"')
except Exception as e:
logger.debug("Error making a table from the CSV")
logger.error(e)
return 'bad_formatting'
logger.debug(" %f ms to create table from csv" % (1000*(time.time()-start_time)))
row_count = tab.count_rows() + 1 # this value is inaccurate so I'm adding 1
if self.has_header_row:
row_count -= 1
results['row_count'] = row_count
logger.debug(" found %d rows" % row_count)
column_count = len(tab)
empty_header_count = 0
results['columns'] = []
for c in tab:
logger.debug(" column: %s" % c.name)
"""
skip over columns that don't have headers
also count the number of columns without headers
and if all columns are missing headers, tell the user that the csv is poorly formatted
"""
if c.name == '_unnamed':
empty_header_count += 1
if empty_header_count == column_count:
return 'bad_formatting'
continue
column_info = {}
column_info['index'] = c.order + 1
column_info['name'] = c.name
values = sorted([i for i in c if i is not None])
stats = {}
# figure out what type the column is
start_time = time.time()
date_count = 0
time_count = 0
number_count = 0
value_count = len(values)
if SAMPLE_FOR_TYPE and (value_count > 100): # try sampling to speed this up
sampled_values = random.sample(values, 100)
else:
sampled_values = values
sampled_value_count = len(sampled_values)
for v in sampled_values:
if type(v) in [float, int, complex] or self.is_number(v):
number_count += 1
if self.is_date(v) is not None:
v = self.is_date(v)
if v.time() != datetime.time(0, 0):
time_count += 1
if v.date() != datetime.date.today():
date_count += 1
if sampled_value_count > 0:
date_percent = float(date_count) / float(sampled_value_count)
time_percent = float(time_count) / float(sampled_value_count)
number_percent = float(number_count) / float(sampled_value_count)
else:
date_percent = 0
time_percent = 0
number_percent = 0
threshold = 0.5
if number_percent < threshold:
if date_percent > threshold:
if time_percent > threshold:
c.type = datetime.datetime
else:
c.type = datetime.date
elif time_percent > threshold:
c.type = datetime.time
else:
c.type = float
logger.debug(" type is %s (%f ms)" % (c.type, (time.time()-start_time)*1000))
# clean the data, based on the type it is
start_time = time.time()
if c.type == datetime.datetime or c.type == datetime.date or c.type == datetime.time:
old_len = len(values)
values = [ self.is_date(v).replace(tzinfo=None) for v in values if self.is_date(v) is not None ]
new_len = len(values)
#logger.debug(" removed %d bad values" % (old_len-new_len))
elif c.type == float:
old_len = len(values)
values = [ self.is_number(v) for v in values if self.is_number(v) is not None ]
new_len = len(values)
#logger.debug(" removed %d bad values" % (old_len-new_len))
elif c.type == str:
old_len = len(values)
values = [ v for v in values if v != ' ' ]
new_len = len(values)
#logger.debug(" removed %d bad values" % (old_len-new_len))
#logger.debug(" cleaned in %f ms" % ((time.time()-start_time)*1000))
# do the default operations on the values
start_time = time.time()
for op in OPERATIONS:
op_start_time = time.time()
stats[op] = getattr(self, 'get_%s' % op)(c, values, stats)
#logger.debug(" %s in %f" % (op,(time.time()-op_start_time)*1000))
#logger.debug(" default ops took %f ms" % ((time.time()-start_time)*1000))
if c.type == None:
column_info['type'] = 'empty'
continue
column_info['type'] = c.type.__name__
column_info['nulls'] = stats['nulls']
t = column_info['type']
dt = 'undefined'
if any(t in s for s in ['float', 'int', 'long', 'complex']):
dt = 'numbers'
if 'str' in t:
dt = 'text'
if 'time' in t:
dt = 'times'
if 'date' in t:
dt = 'dates'
if 'datetime' in t:
dt = 'dates and times'
if 'bool' in t:
dt = 'booleans'
column_info['display_type_name'] = dt
if dt in ['numbers', 'dates', 'times', 'dates and times']:
if len(stats['unique']) <= NUMBER_MAX_UNIQUE:
column_info['most_freq_values'] = sorted(self.get_most_freq_values(stats), key=itemgetter('value'))
else:
column_info['uniques'] = len(stats['unique'])
column_info['min'] = stats['min']
column_info['max'] = stats['max']
column_info['deciles'] = stats['deciles']
if dt in 'numbers':
column_info['sum'] = stats['sum']
column_info['mean'] = stats['mean']
column_info['median'] = stats['median']
column_info['stdev'] = stats['stdev']
else:
# if there are few unique values, get every value and their frequency
if len(stats['unique']) <= MAX_UNIQUE and c.type is not bool:
column_info['values'] = self.get_most_freq_values(stats)
column_info['most_freq_values'] = self.get_most_freq_values(stats)
else:
column_info['uniques'] = len(stats['unique'])
# get the most frequent repeating values, if any
if column_info['uniques'] != len(values):
column_info['most_freq_values'] = self.get_most_freq_values(stats)
if c.type is not bool:
column_info['others'] = stats['others']
# for text columns, get the longest string
if c.type == six.text_type:
column_info['max_str_len'] = stats['len']
if 'str' in column_info['type'] and not 'most_freq_values' in column_info:
# TODO: these results could be cleaned up using textmining
# TODO: send in the language properly?
stopwords_language = NLTK_STOPWORDS_BY_LANGUAGE[language]
column_info['word_counts'] = wordhandler.get_word_counts(
str([s for s in values]).strip('[]').replace("u'", '').replace("',", ''),
True, True, stopwords_language, False, False)
results['columns'].append( column_info )
logger.debug(" done in %f ms" % ((time.time()-summary_start)*1000 ))
return results
