count unique values pandas column code example

Example 1: count unique pandas

df['column'].nunique()

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 count the number of unique values in a column

df['hID'].nunique()
5

Example 4: pandas count distinct values in a column

Series.value_counts(self, normalize=False, sort=True, ascending=False, bins=None, dropna=True)

Example 5: unique values in dataframe column

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

Example 6: pandas count unique values in column

df.nunique()