count of unique column values pandas code example

Example 1: 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 2: pandas unique values in column

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

Example 3: dataframe unique values in each column

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

Example 4: python - count how many unique in a column

df['var_1'].nunique()   # How many unque values are present in a variable