value_counts in pandas code example

Example 1: value count in python

col-name.value_count()

Example 2: value_counts pandas

>>> index = pd.Index([3, 1, 2, 3, 4, np.nan])
>>> index.value_counts()
3.0    2
4.0    1
2.0    1
1.0    1
dtype: int64

Example 3: plot value counts pandas

df.letters.value_counts().sort_values().plot(kind = 'barh')

Example 4: relativefrequencies of the unique values pandas

df.value_counts(normalize=True)

Example 5: count_values in python

idx.value_counts()

Example 6: count values python

from collections import Counter
values=np.ones(10)
Counter(values)

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