count unique values in a column pandas 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 unique values in column

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

Example 4: pandas count the number of unique values in a column

df['hID'].nunique()
5

Example 5: values of unique from dataframe with count

data = df.groupby('ColumnName')['IDColumnName'].nunique()
print(data)

Example 6: how to count unique values in a column dataframe in python

dataframe.column.nunique()