Count in Python (word frequency)

1, for list lists, a. Using custom functions for statistical techniques

def get_count (Sequence):    counts={}    for in  sequence:        if   in sequence:            +=1        Else:            =1    return counts

Or use the Python standard library

 from Import defaultdict def get_counts (Sequence):         = defaultdict (int)# All values are initialized to 0 forin      sequence:        +=1    return counts

B. Using the Collections.counter class of the Python standard library

 from Import  = Counter (' list name ') counts. Most_common# Top 10-bit count

2, for Dataframe.

For an object series returned by a column in a Dataframe object, such as frame[' property name ', there is a value_counts method,

Counts = frame[' property name '].value_counts ()

Count in Python (word frequency)