how to see unique values in a column in python code example
Example 1: how to get distinct value in a column dataframe in python
df.column.unique()
Example 2: pandas unique values in column
df.name.unique()
Example 3: unique values in dataframe column count
df.groupby('mID').agg(['count', 'size', 'nunique']).stack()
dID hID uID
mID
A count 5 5 5
size 5 5 5
nunique 3 5 5
B count 2 2 2
size 2 2 2
nunique 2 2 2
C count 1 1 1
size 1 1 1
nunique 1 1 1
Example 4: dataframe unique values in each column
for col in df:
print(df[col].unique())
Example 5: dataframe python unique values rows
df.drop_duplicates()
Example 6: unique entries in column pandas
import pandas as pd
pd.set_option('display.max_row', 1000)
pd.set_option('display.max_columns', 50)
data = {'name': ['Jason', 'Molly', 'Tina', 'Jake', 'Amy'],
'year': [2012, 2012, 2013, 2014, 2014],
'reports': [4, 24, 31, 2, 3]}
df = pd.DataFrame(data, index = ['Cochice', 'Pima', 'Santa Cruz', 'Maricopa', 'Yuma'])
df
df.name.unique()