/Python/Pandas count distinct values in column

Pandas count distinct values in column

Return count of unique values pandas

#TO count repetition of each unique values(to find How many times the same-
# unique value is appearing in the data)

item_counts = df["Your_Column"].value_counts()
#Returns Dictionary => {"Value_name" : number_of_appearences}

How to get distinct value in a column dataframe in python

df.column.unique()

Source: chrisalbon.com

How to count number of unique values in a column python

pd.value_counts(df.Account_Type)

Gold        3
Platinum    1
Name: Account_Type, dtype: int64

Source: stackoverflow.com

Values of unique from dataframe with count

data = df.groupby('ColumnName')['IDColumnName'].nunique()
print(data)

Get count of unique values in column pandas

df = df.groupby('domain')['ID'].nunique()

print (df)
domain
'facebook.com'    1
'google.com'      1
'twitter.com'     2
'vk.com'          3
Name: ID, dtype: int64

Source: stackoverflow.com

Pandas count distinct values in column

#column name ISSDTM
pd.to_datetime(df.ISSDTM, errors='coerce').dt.year

#result
0    2013
1    2013
2    2009
3    2009
Name: ISSDTM, dtype: int64

-1

Source: stackoverflow.com

Similar codes

0 vote228 views1 answer
Django set random password
Python
1 vote174 views1 answer
Python oprators
Python
0 vote225 views1 answer
Multiplication table for number python codewars
Python
0 vote165 views1 answer
Python session set cookies
Python
0 vote160 views1 answer
Index of a string index dataframe
Python
0 vote172 views1 answer
Select rainfall events and calculate rainfall event total from time-series data
Python
0 vote180 views1 answer
How to query json field django
Python Django
3 votes155 views1 answer
Update all modules python in cmd
Python
1 vote170 views1 answer
Pydotprint
Python
0 vote159 views1 answer
Python boxplot legend
Python