unique values in column pandas code example

Example 1: how to get distinct value in a column dataframe in python

df.column.unique()

Example 2: 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}

Example 3: pandas unique values in column

#List unique values in the df['name'] column
df.name.unique()

Example 4: unique values in dataframe colume

df['Column_name'].value_counts()

Example 5: 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 6: dataframe unique values in each column

for col in df:
    print(df[col].unique())