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.

Skills you'll gain: A/B Testing, Sampling (Statistics), Statistical Hypothesis Testing, Statistical Inference, Statistical Methods, Statistics, Estimation, Statistical Analysis, Analytics, Probability & Statistics, Data Analysis, Analysis, Correlation Analysis
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Scala Programming, Data Pipelines, Test Driven Development (TDD), Apache Airflow, Data Lakes, Apache Spark, CI/CD, Apache Kafka, Data Quality, Cloud Engineering, Data Architecture, Performance Tuning, Data Store, Data Transformation, Data Processing, Maintainability, Real Time Data, Development Environment, Data Integrity, Data Access
Intermediate · Course · 3 - 6 Months

Duke University
Skills you'll gain: Performance Metric, Performance Analysis, Performance Measurement, Customer Demand Planning, Dashboard, Market Opportunities, Business Metrics, Decision Making, Strategic Decision-Making, Agile Methodology, Real Time Data, Management Reporting, Business Intelligence, Organizational Effectiveness, Business Leadership, Data-Driven Decision-Making, Data Analysis
★ 4.7 (29) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Excel Formulas, Public Health and Disease Prevention, Statistical Methods, Time Series Analysis and Forecasting, Anomaly Detection, Exploratory Data Analysis, Descriptive Analytics
Beginner · Course · 1 - 4 Weeks

John Wiley & Sons
Skills you'll gain: Excel Formulas, Microsoft Excel, Spreadsheet Software, Data Presentation, Data Visualization, Excel Macros, Financial Modeling, Data Analysis, Financial Data, Financial Analysis, Statistical Methods, Data Science, Scheduling, Data Security, Data Integrity, Data Manipulation, Data Management
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Integral Calculus, Numerical Analysis, Calculus, Data Science, Applied Mathematics, Linear Algebra, Probability & Statistics, Derivatives
★ 4.6 (111) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Apache Spark, Retrieval-Augmented Generation, OpenAI API, Generative AI, LLM Application, Model Evaluation, Data Preprocessing, Large Language Modeling, Generative Adversarial Networks (GANs), Predictive Modeling, Matplotlib, Keras (Neural Network Library), Fine-tuning, Transfer Learning, Deep Learning, Machine Learning Methods, Applied Machine Learning, Seaborn, Statistical Modeling, Machine Learning
★ 5 (6) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Technical Analysis, Market Dynamics, Economics, International Finance, Financial Analysis, Financial Data, Supply And Demand, Probability, Data Analysis, Advanced Analytics, Financial Policy, Market Data, Risk Modeling, Market Trend, Statistical Analysis, Probability Distribution, Consumer Behaviour, Risk Analysis, Finance, Business
★ 4.8 (16) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Javascript, Programming Principles, Computational Logic, Computer Programming, Web Development, Application Development
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Email Marketing, Cross-Channel Marketing, Email Security, Marketing Strategies, HubSpot CRM, Risk Mitigation, Authentications, Marketing Channel, Persona Development, AI Personalization, Campaign Management, Integrated Marketing Communications, Compliance Management, Governance Risk Management and Compliance, Risk Analysis, Compliance Auditing, Data Governance, General Data Protection Regulation (GDPR), Data Security, Data Management
Beginner · Course · 3 - 6 Months

Schneider Electric
Skills you'll gain: Data Centers, Sustainable Technologies, Internet Of Things, Climate Change Mitigation, Information Technology, Manufacturing Operations, Manufacturing Processes, Data Infrastructure, Automation Engineering, Electric Power Systems, Digital Transformation, Transportation Operations, AI Integrations, Artificial Intelligence
★ 4 (6) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Apache Spark, Model Evaluation, Data Preprocessing, Keras (Neural Network Library), Transfer Learning, Deep Learning, Model Training, Tensorflow, A/B Testing, Responsible AI, Data Processing, Convolutional Neural Networks, Machine Learning Software, Artificial Neural Networks, Machine Learning Algorithms, Data Cleansing, Model Deployment, Machine Learning, Recurrent Neural Networks (RNNs), Dimensionality Reduction
Advanced · Course · 1 - 3 Months