/Python/Collections.Counter(string).most_common

Collections.Counter(string).most_common

counter = Counter({'Dog': 2, 'Cat': -1, 'Horse': 0})

# most_common()
most_common_element = counter.most_common(1)
print(most_common_element)  # [('Dog', 2)]

least_common_element = counter.most_common()[:-2:-1]
print(least_common_element)  # [('Cat', -1)]

Source: journaldev.com

Collections.Counter(string).most_common

# getting count
counter = Counter({'Dog': 2, 'Cat': 1, 'Horse': 1})
countDog = counter['Dog']
print(countDog)  # 2

Source: journaldev.com

Collections.Counter(string).most_common

# Delete element from Counter
del counter['Unicorn']
print(counter)  # Counter({'Dog': 2, 'Cat': 1, 'Horse': 0})

Source: journaldev.com

Collections.Counter(string).most_common

# getting count for non existing key, don't cause KeyError
print(counter['Unicorn'])  # 0

Source: journaldev.com

Collections.Counter(string).most_common

counter = Counter({'Dog': 2, 'Cat': -1, 'Horse': 0})

# elements()
elements = counter.elements()  # doesn't return elements with count 0 or less
for value in elements:
    print(value)

Source: journaldev.com

Collections.Counter(string).most_common

# Counter works with non-numbers too
special_counter = Counter(name='Pankaj', age=20)
print(special_counter)  # Counter({'name': 'Pankaj', 'age': 20})

Source: journaldev.com

Collections.Counter(string).most_common

counter = Counter({'Dog': 2, 'Cat': 1, 'Horse': 1})
# setting count
counter['Horse'] = 0
print(counter)  # Counter({'Dog': 2, 'Cat': 1, 'Horse': 0})

# setting count for non-existing key, adds to Counter
counter['Unicorn'] = 1
print(counter)  # Counter({'Dog': 2, 'Cat': 1, 'Unicorn': 1, 'Horse': 0})

Source: journaldev.com

Similar codes

1 vote325 views1 answer
Date.month date time
Python
30 votes274 views2 answers
Mysql.connector methods python
Python
0 vote294 views2 answers
Impute data by using groupby and transform
Python
0 vote287 views1 answer
Python numpy find nearest value
Python
0 vote320 views2 answers
Stable version of django
Python
3 votes288 views2 answers
Apply lambda function to multiple columns pandas
Python
4 votes279 views1 answer
List of df to df
Python
0 vote295 views1 answer
Substring in a django template?
Python
9 votes254 views3 answers
A value is trying to be set on a copy of a slice from a DataFrame.
Python
0 vote297 views10 answers
Installez django-cruds-adminlte
Python