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

Source: pandas.pydata.org

How to get value_counts output in dataframe format

df = df.value_counts().rename_axis('unique_values').reset_index(name='counts')
print (df)
   unique_values  counts
0              2       3
1              1       2

Source: stackoverflow.com

Plot value counts pandas


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

Source: stackoverflow.com

Frequency unique pandas

df.stack().value_counts()

Source: stackoverflow.com

Relativefrequencies of the unique values pandas

df.value_counts(normalize=True)

Count values python

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

Similar codes

0 vote164 views1 answer
Concat list of strings python
Python
5 votes258 views3 answers
How to save unzipped files in python
Python
0 vote227 views1 answer
Fromhex python 2.7
Python
3 votes210 views2 answers
How to edit a specific line in text file in python
Python
-1 vote203 views1 answer
What will be the output of the following python code? print("abc. def".capitalize())
Python
1 vote183 views1 answer
Plot dictionary python
Python
33 votes212 views6 answers
Pip install matplotlib.pyplot
Python
22 votes218 views6 answers
Readlines from file python
Python
0 vote239 views1 answer
Djanog admin cookbook change text
Python
0 vote213 views1 answer
How to add an symbol to a certain part of a list python
Python