Answers for "how to find unique values in dataframe column"

2

get list of unique values in pandas column

a = df['column name'].unique() #returns a list of unique values
Posted by: Guest on March-29-2021
2

count unique values pandas

df['hID'].nunique()
5
Posted by: Guest on May-28-2020
1

pandas count unique values in column

df.nunique()
Posted by: Guest on March-12-2020
0

pandas get column values distinct

import pandas as pd

colors = {'color': ['green', 'blue', 'blue', 'red', 'green']}
df = pd.DataFrame.from_dict(colors)

print(df['color'].unique())
Posted by: Guest on August-31-2021
1

Count unique values Pandas

df = df.groupby('domain')['ID'].nunique()
Posted by: Guest on April-22-2021
4

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
Posted by: Guest on August-20-2020

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