Answers for "python dataframe value_counts in dataframe"

9

count values 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
Posted by: Guest on April-02-2020
2

df.value_counts to dataframe

df = df.value_counts().rename_axis('unique_values').reset_index(name='counts')
print (df)
   unique_values  counts
0              2       3
1              1       2
Posted by: Guest on April-07-2021

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