Data cleaning courses can help you learn techniques for identifying and correcting errors in datasets, handling missing values, and standardizing data formats. You can build skills in data validation, outlier detection, and transforming raw data into a usable format. Many courses introduce tools like Python libraries such as Pandas and NumPy, as well as software like OpenRefine, that support executing data cleaning tasks efficiently and ensuring data quality for analysis.

Macquarie University
Skills you'll gain: Time Series Analysis and Forecasting, Forecasting, Model Evaluation, Microsoft Excel, Excel Formulas, Trend Analysis, Predictive Modeling, Data Presentation, Statistical Visualization, Graphing, Model Optimization, Statistical Analysis
★ 4.9 (252) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Job Control Language (JCL), z/OS, Unix, IBM DB2, Database Management Systems, Mainframe Computing, Unix Shell, Operating System Administration, System Programming, Operating Systems, Unix Commands, System Software, Mainframe Technologies, Data Management, Data Storage Technologies, File Systems, Data Storage, System Configuration, File Management, Transaction Processing
★ 4.8 (378) · Intermediate · Course · 1 - 4 Weeks

Amazon
Skills you'll gain: File I/O, Object Oriented Programming (OOP), Object Oriented Design, Code Reusability, Java Programming, Java, Software Design, File Management, Data Persistence
★ 4.2 (91) · Beginner · Course · 1 - 4 Weeks

Sapienza University of Rome
Skills you'll gain: 3D Assets, Ancient History, 3D Modeling, Visualization (Computer Graphics), Public History, Digital Publishing, Scientific Methods, Data Sharing, Anthropology, Data Modeling, Cultural Diversity, Case Studies, Cultural Sensitivity, Liberal Arts, Research, Data Management, Data Collection, Semantic Web
★ 4.4 (310) · Mixed · Course · 1 - 3 Months

28DIGITAL
Skills you'll gain: Real-Time Operating Systems, Embedded Software, Embedded Systems, Threat Modeling, Systems Architecture, System Software, Hardening, Debugging, Computer Architecture, Hardware Architecture, Internet Of Things, Application Security, General Networking, Wireless Networks, Operating Systems, Performance Tuning, System Requirements, Network Protocols, Open Source Technology
★ 4.4 (352) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Employee Surveys, Data Collection, Analysis, Business Research, Data Analysis, User Feedback, Market Research, Data Analysis Software, Business Software
★ 4.5 (427) · Beginner · Guided Project · Less Than 2 Hours

Northeastern University
Skills you'll gain: Data Storytelling, Interactive Data Visualization, Data Visualization, Data Visualization Software, Visualization (Computer Graphics), Matplotlib, Plot (Graphics), Data Preprocessing, Pandas (Python Package), Data Processing, Data Cleansing, Data Integration, Big Data, Programming Principles, Python Programming
Mixed · Course · 1 - 3 Months

Skills you'll gain: Data Manipulation, Data Wrangling, AI Personalization, Model Evaluation, Applied Machine Learning, Data Preprocessing, Machine Learning Methods, Data Cleansing, Statistical Machine Learning, Machine Learning, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning Algorithms, Model Training, Taxonomy, Text Mining, Data Analysis, Artificial Intelligence, Deep Learning
Intermediate · Course · 1 - 3 Months
Lund University
Skills you'll gain: Responsible AI, Artificial Intelligence, AI literacy, Social Impact, Algorithms, Ethical Standards And Conduct, Information Privacy, Governance, Robotics
★ 4.7 (358) · Beginner · Course · 1 - 4 Weeks

Imperial College London
Skills you'll gain: Correlation Analysis, Regression Analysis, Data Analysis, R Programming, Descriptive Statistics, Descriptive Analytics, Statistical Modeling, R (Software), Exploratory Data Analysis, Model Evaluation, Statistical Analysis, Statistical Methods, Probability & Statistics, Biostatistics, Predictive Modeling, Model Training, Data Manipulation, Data Import/Export
★ 4.8 (530) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Multimodal Prompts, Prompt Patterns, OpenAI API, ChatGPT, OpenAI, JSON, Large Language Modeling, Python Programming, Text Mining, Data Capture, Data Validation, Unstructured Data, Development Environment, Key Management
Intermediate · Course · 1 - 3 Months

Fred Hutchinson Cancer Center
Skills you'll gain: Model Evaluation, Model Training, AI Personalization, AI literacy, AI Integrations, AI Product Strategy, AI Security, Artificial Intelligence, Goal Setting, Decision Making, Usability Testing, Needs Assessment, Project Planning, Resource Planning, Resource Management
★ 4.1 (31) · Intermediate · Course · 1 - 4 Weeks