df count unique values in column code example
Example 1: count unique pandas
df['column'].nunique()
Example 2: pandas count the number of unique values in a column
df['hID'].nunique()
5
Example 3: 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
Example 4: how to count unique values in a column dataframe in python
dataframe.column.nunique()
Example 5: pandas count unique values in column
df.nunique()
Example 6: dataframe number of unique rows
1
2
df.drop_duplicates(keep='last')