Data Cleaning and Preprocessing Techniques

Embarking on this course allows you to deeply understand and apply data cleaning and preprocessing techniques. It systematically covers the concepts of data cleaning, handling missing values, normalization, binning, encoding, and more, aiming to equip you with practical skills for preparing data for analysis or machine learning tasks.

Lessons and practices

Lesson 1: Understanding and Handling Missing Values in Datasets with Python

Applying Missing Values Handling to Clients' Personal Information Dataset

Replacing Mean with Median

Filling the Missing Values in the Clients Dataset

Addressing Missing Values in Client Data

Lesson 2: Handling Duplicates and Outliers in Datasets

Identifying Duplicates and Outliers in Height Dataset

Cleaning Duplicates from the Dataset

Cleaning Up School Data: Handling Duplicates and Outliers

Removing Duplicates and Handling Outliers in Student Data

Clean School Data: Handling Duplicates and Outliers

Lesson 3: Understanding and Implementing Data Normalization Techniques in Python

Exploring Normalization of Planet Orbit Speeds

Normalization on Planet Diameter

Planetary Orbital Speed Normalization Fix

Applying Min-Max Normalization to Planetary Distances

Normalization of Planetary Orbits

Lesson 4: Categorical Data Encoding Techniques in Python: An Introduction to Label and One-Hot Encoding

Encoding Clothing Categories and Sizes

Changing One-Hot Encoding to Label Encoding for Clothing Type Data

Fix the Clothing Store Inventory Management System

Mapping Clothing Sizes to Numerical Values

Applying Categorical Data Encoding in Clothing Store Inventory Management

Lesson 5: Data Binning Techniques: An Introduction and Implementation with Python and Pandas

Binning Student Ages into Grade Levels

Altering Labels in Data Binning

Categorizing Student Ages with Data Binning

Implementing Binning Technique in Data Preparation

Categorizing Ages into Groups

Interested in this course? Learn and practice with Cosmo!

Practice is how you turn knowledge into actual skills.