How to count the number of unique rows in a Pandas DataFrame using Python
• 1 minYou can count the number of occurrences of a DataFrame column the .value_counts() method.
Here is the code
# Import the Pandas library
import pandas as pd
# We create our example dataframe
df = pd.DataFrame({"countries" : ["Germany", "USA", "Germany", "France"]})
# We print the number of unique occurences
print(df["countries"].value_counts())
Here you are! You now know how to count the number of unique rows in a Pandas DataFrame using Python.
More on DataFrames
If you want to know more about DataFrame and Pandas. Check out the other articles I wrote on the topic, just here :