count distinct values in pandas column code example
Example 1: pandas groupby column count distinct values
# Pandas group by a column looking at the count unique/count distinct values of another column
df.groupby('param')['group'].nunique()
Example 2: how to get distinct value in a column dataframe in python
df.column.unique()
Example 3: how to count unique values in a column dataframe in python
dataframe.column.nunique()
Example 4: pandas count unique values in column
df.nunique()
Example 5: Returns a new DataFrame containing the distinct rows in this DataFrame
# Returns a new DataFrame containing the distinct rows in this DataFrame
df.ditinct().count()
# 2