Pandas Tutorial (original) (raw)

Last Updated : 11 Oct, 2025

Pandas (stands for Python Data Analysis) is an open-source software library designed for **data manipulation and **analysis.

• Revolves around two primary Data structures: Series (1D) and DataFrame (2D)
• Built on top of NumPy, efficiently manages large datasets, offering tools for data cleaning, transformation, and analysis.
• Tools for working with time series data, including date range generation and frequency conversion. For example, we can convert date or time columns into pandas’ datetime type using pd.to_datetime(), or specify parse_dates=True during CSV loading.
• Seamlessly integrates with other Python libraries like NumPy, Matplotlib, and scikit-learn.
• Provides methods like .dropna() and .fillna() to handle missing values seamlessly

**Important Facts to Know :

• **DataFrames: It is a two-dimensional data structure constructed with rows and columns, which is more similar to Excel spreadsheet.
• **pandas: This name is derived for the term "panel data" which is econometrics terms of data sets.

What is Pandas Used for?

• Reading and writing data from various file formats like CSV, Excel and SQL databases.
• Cleaning and preparing data (handling missing values, filtering, removing duplicates).
• Merging, joining, and reshaping datasets.
• Performing statistical analysis and descriptive statistics.
• Visualizing data quickly.

Pandas Basics

In this section, we will cover the fundamentals of Pandas, including installation, core functionalities, and using Jupyter Notebook for interactive coding. By the end, you’ll be ready to start analyzing data with Pandas.

• Pandas Introduction
• Pandas Installation
• Getting started with Pandas
• How To Use Jupyter Notebook

Pandas DataFrame

A DataFrame is a two-dimensional, size-mutable and potentially heterogeneous tabular data structure with labeled axes (rows and columns).

• Creating a DataFrame
• Pandas Dataframe Index
• Pandas Access DataFrame
• Indexing and Selecting Data with Pandas
• Slicing Pandas Dataframe
• Filter Pandas Dataframe with multiple conditions
• Merging, Joining and Concatenating Dataframes
• Sorting Pandas DataFrame
• Pivot Table in Pandas

Pandas Series

A Series is a one-dimensional labeled array capable of holding any data type (integers, strings, floating-point numbers, Python objects, etc.). It’s similar to a column in a spreadsheet or a database table.

• Creating a Series
• Accessing elements of a Pandas Series
• Binary Operations on Series
• Pandas Series Index() Methods
• Create a Pandas Series from array

Data Input and Output (I/O)

Pandas offers a variety of functions to read data from and write data to different file formats as given below:

• Read CSV Files with Pandas
• Writing data to CSV Files
• Export Pandas dataframe to a CSV file
• Read JSON Files with Pandas
• Parsing JSON Dataset
• Exporting Pandas DataFrame to JSON File
• Working with Excel Files in Pandas
• Read Text Files with Pandas
• Text File to CSV using Python Pandas

Data Cleaning in Pandas

Data cleaning is an essential step in data preprocessing to ensure accuracy and consistency. Here are some articles to know more about it:

• Handling Missing Data
• Removing Duplicates
• Pandas Change Datatype
• Drop Empty Columns in Pandas
• String manipulations in Pandas
• String methods in Pandas
• Detect Mixed Data Types and Fix it

Pandas Operations

We will cover data processing, normalization, manipulation and analysis, along with techniques for grouping and aggregating data. These concepts will help you efficiently clean, transform and analyze datasets. By the end of this section, you’ll learn Pandas operations to handle real-world data effectively.

• Data Processing with Pandas.
• Data Normalization in Pandas
• Data Manipulation in Pandas
• Data Analysis using Pandas
• Grouping and Aggregating with Pandas
• Different Types of Joins in Pandas

**Advanced Pandas Operations

We will cover techniques for finding correlations, working with time series data and using Pandas' built-in plotting functions for effective data visualization.

• Finding Correlation between Data
• Data Visualization with Pandas
• Pandas Plotting Functions for Data Visualization
• Basic of Time Series Manipulation Using Pandas
• Time Series Analysis & Visualization in Python

Pandas Quiz

Test your knowledge of Python's pandas library with this quiz. It's designed to help you check your knowledge of key topics like handling data, working with DataFrames and creating visualizations.

• Python Pandas Quiz

Projects

In this section, we will work on real-world data analysis projects using Pandas and other data science tools. These projects will cover various domains, including food delivery, sports, travel, healthcare, real estate and retail. By analyzing datasets like Zomato, IPL, Airbnb, COVID-19 and Titanic, we will apply data processing, visualization and predictive modeling techniques. By the end of this section, you will gain hands-on experience in data analysis and machine learning applications.

• Zomato Data Analysis Using Python
• IPL Data Analysis
• Airbnb Data Analysis
• Global Covid-19 Data Analysis and Visualizations
• Housing Price Analysis & Predictions
• Market Basket Analysis
• Titanic Dataset Analysis and Survival Predictions
• Iris Flower Dataset Analysis and Predictions
• Customer Churn Analysis
• Car Price Prediction Analysis

To Explore more Data Analysis Projects refer to article: 30+ Top Data Analytics Projects in 2025 [With Source Codes]