Python counter

Counter in python

$ python collections_counter_init.py

Counter({'b': 3, 'a': 2, 'c': 1})
Counter({'b': 3, 'a': 2, 'c': 1})
Counter({'b': 3, 'a': 2, 'c': 1})

Source: pymotw.com

Counter method in python

Counter({'o': 3, ' ': 3, 'u': 3, 'e': 2, 'l': 2, 't': 2, 'r': 2, '9': 2, 'W': 1,
 'c': 1, 'm': 1, 'G': 1, 'T': 1, 'i': 1, 'a': 1, 's': 1, '!': 1})

Source: guru99.com

Counter method in python

Counter({'x': 4, 'y': 2, 'z': 2})

Source: guru99.com

Python counter

sum(c.values())                 # total of all counts
c.clear()                       # reset all counts
list(c)                         # list unique elements
set(c)                          # convert to a set
dict(c)                         # convert to a regular dictionary
c.items()                       # convert to a list of (elem, cnt) pairs
Counter(dict(list_of_pairs))    # convert from a list of (elem, cnt) pairs
c.most_common()[:-n-1:-1]       # n least common elements
c += Counter()                  # remove zero and negative counts

Source: docs.python.org

Counter in python

import collections

print collections.Counter(['a', 'b', 'c', 'a', 'b', 'b'])
print collections.Counter({'a':2, 'b':3, 'c':1})
print collections.Counter(a=2, b=3, c=1)

Source: pymotw.com

Counter in python

from collections import Counter
strl = "aabbaba"
print(Counter(str1))

Counter({'a': 4, 'b': 3})

Source: stackoverflow.com

Similar codes

4 votes204 views1 answer
Change type of array python
Python
0 vote223 views1 answer
Find-squares-and-odd-numbers-in-the-given-list
Python
3 votes212 views3 answers
Text to pandas
Python
2 votes219 views1 answer
Convert float in datetime python
Python
3 votes203 views2 answers
Python change cwd to script directory
Python
0 vote204 views1 answer
How to make images in python
Python
0 vote213 views1 answer
Pandas description of dataframe renaming column values
Python
11 votes210 views2 answers
Python randomly shuffle rows of pandas dataframe
Python
0 vote212 views1 answer
Python dataframe copy structure
Python
2 votes232 views1 answer
Check corently installed epython version
Python