21 hours ago · Learn how to count unique values in a Pandas column using nunique(), value_counts(), and more. Master data analysis with these expert Python tips and examples.

Jan 19, 2024 · This article explains how to get unique values and their counts in a column (= Series) of a DataFrame in pandas. Use the unique(), value_counts(), and nunique() methods on Series. …

Oct 3, 2025 · The nunique () method counts the number of unique values in a column. It is useful when you only need the count of distinct values rather than the values themselves.

May 28, 2015 · 64 I am trying to find the count of distinct values in each column using Pandas. This is what I did.

Apr 5, 2025 · This tutorial explains how to count unique values in a pandas DataFrame, including several examples.

Nov 12, 2024 · To count unique values in the Pandas DataFrame column use the Series.unique() function along with the size attribute. The series.unique() function returns all unique values from a …

Mar 27, 2024 · In this article, we'll walk you through various methods to efficiently count unique values in a column using Python, making your data analysis tasks a breeze. We'll cover techniques like …

The pandas.unique () function is used to get an array of unique values from a single column of a DataFrame or a Series. Unlike nunique (), which counts unique values, unique () returns them directly.

Jul 15, 2025 · You can use pd.unique ()to get all unique values in a column. To count them, apply len ()to the result. This method is useful when you want distinct values and their count. In addition to the …

Jul 6, 2022 · You’ll learn how to count unique values in a column, in multiple columns, and in an entire DataFrame. Being able to count unique values can have important use cases.