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Python 3
Data Cleaning

Data Cleaning

Lesson 1: Data Cleaning

Lesson 1: Data Cleaning

Data cleaning is the process of preparing raw data so it can be used reliably for analysis. Real-world sales datasets often contain incomplete, inconsistent, or poorly formatted data that can lead to incorrect results if not handled properly.

In this project, data cleaning is required because the sales dataset includes missing address details, unknown states, and incomplete location information. Cleaning ensures that the dataset remains consistent and usable for grouping, aggregation, and visualization.

Improving Data Quality: Removes inconsistencies that could distort analysis results.
Preventing Analysis Errors: Ensures functions like grouping and plotting work correctly.
Preparing Data for Analysis: Makes the dataset structured and reliable for further steps.

Data cleaning is always the first step before any meaningful analysis.

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Data Cleaning

Contents

Lesson 1: Data Cleaning

Sales Data Analysis Project for Beginners Using Data Science

Recommended Handbooks

C++ Handbook

Python Basics Handbook

Javascript Handbook

ReactJS Projects Handbook

Computer Networks Tutorial

Operating System Tutorial

DBMS and SQL Tutorial

Java Tutorial

C Language Tutorial

PHP Tutorial

Android Tutorial

Linux Guide Tutorial

Data Structures and Algorithms Tutorial

Computer Architecture

HTML 5 References Tutorial

Docker Tutorial

GIT (Using Github) Tutorial

Go Language Tutorial

GIT Guide

CSS Tutorial

Advanced Data Structures

Spring Framework Tutorial

Spring Boot Tutorial

Kotlin Tutorial

Apache Cordova Tutorial

Python Tutorial

SASS-SCSS Tutorial

MongoDB Tutorial

Numpy Tutorial

PL-SQL Tutorial

Python Built-in Functions Tutorial

Pandas Tutorial

Elasticsearch Tutorial

Matplotlib Tutorial

Web Scraping Tutorial

Networking with Python

Tkinter Tutorial

Java Programs Tutorial

Java Examples Tutorial

Servlet Tutorial

JSP Tutorial

Java Type Conversion Tutorial

Java 8 Tutorial

Java 9 Tutorial

Java 10 Tutorial

Java 11 Tutorial

Java Util Library Tutorial

Building a Contact Us Form in ReactJS

Building a Age Calculator App Using ReactJS

Movie Recommendation System Project Using Content-Based Filtering

Recipe Finder App using ReactJS

Student Performance Analysis Project for Beginners Using Data Science

Word Counter Tool Using ReactJS