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.

New York University
Skills you'll gain: Supervised Learning, Machine Learning Methods, Dimensionality Reduction, Unsupervised Learning, Machine Learning Algorithms, Applied Machine Learning, Decision Tree Learning, Machine Learning, Machine Learning Software, Financial Trading, Financial Market, Reinforcement Learning, Scikit Learn (Machine Learning Library), Financial Services, Market Data, Correlation Analysis, Exploratory Data Analysis, Portfolio Management, Python Programming, Artificial Neural Networks
★ 3.7 (345) · Intermediate · Course · 1 - 4 Weeks

Universidad de los Andes
Skills you'll gain: Probability, Probability Distribution, Probability & Statistics, Applied Mathematics, Risk Management, Risk Modeling, Statistical Modeling, Combinatorics, Statistical Analysis, Variance Analysis
★ 4.8 (180) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: React Native, Android Studio, Restful API, User Research, Version Control, GitHub, UI/UX Research, Usability Testing, Jest (JavaScript Testing Framework), Git (Version Control System), Data Structures, Kotlin, Android Jetpack, Android Development, Unix Commands, Persona (User Experience), Interaction Design, Mobile Development, Code Reusability, Javascript
★ 4.6 (9.3K) · Beginner · Professional Certificate · 3 - 6 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, User Interface (UI), Leaflet (Software), Data Processing, Interactive Data Visualization, Scientific Visualization, Big Data, Visualization (Computer Graphics), Geospatial Mapping, Data Manipulation, Data Transformation, Apache Spark, Spatial Data Analysis, Computer Graphics
★ 4.4 (547) · Mixed · Course · 1 - 3 Months

Universidad de los Andes
Skills you'll gain: Technical Analysis, Portfolio Management, Advanced Analytics, Financial Data, Investments, Financial Forecasting, Financial Trading, Investment Management, Financial Analysis, Financial Market, Risk Modeling, Financial Modeling, Analytics, Portfolio Risk, Predictive Analytics, Capital Markets, Performance Measurement, Time Series Analysis and Forecasting, Statistical Analysis, Market Trend
★ 4.7 (229) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Generative AI, Fine-tuning, Large Language Modeling, Generative Model Architectures, Model Optimization, Prompt Engineering, Model Training, PyTorch (Machine Learning Library)
★ 4.5 (118) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Excel Macros, Forecasting, Microsoft Copilot, Dashboard Creation, Microsoft Excel, Predictive Modeling, Workflow Management, UI Components, Visual Basic (Programming Language), User Interface (UI), Automation, Debugging, Interactive Data Visualization, Scenario Testing, Programming Principles
★ 4.5 (72) · Beginner · Course · 1 - 4 Weeks
DeepLearning.AI
Skills you'll gain: Fine-tuning, Model Training, Model Evaluation, Climate Change Adaptation, Applied Machine Learning, Image Analysis, Environmental Monitoring, Convolutional Neural Networks, Artificial Intelligence, Climate Change Mitigation, Artificial Neural Networks, Environmental Issue, Machine Learning Methods, Data Processing, Forecasting, Computer Vision, Predictive Modeling, Supervised Learning
★ 4.8 (144) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Model Evaluation, Keras (Neural Network Library), Model Training, Tensorflow, Image Analysis, Artificial Neural Networks, Applied Machine Learning, Network Model, Deep Learning, Computer Vision, Machine Learning, Network Architecture
★ 4.6 (848) · Beginner · Guided Project · Less Than 2 Hours
Skills you'll gain: Incident Response, Computer Security Incident Management, Incident Management, Cybersecurity, Cyber Threat Intelligence, Security Management, Security Awareness, Data Ethics, Data Security, Technical Communication, AI Workflows, Artificial Intelligence
★ 4.8 (6.5K) · Beginner · Course · 1 - 3 Months

Edureka
Skills you'll gain: Data Transformation, Dashboard Creation, Business Intelligence Software, Data Integration
★ 4.5 (109) · Advanced · Course · 1 - 4 Weeks
University of Toronto
Skills you'll gain: Functional Design, Programming Principles, Debugging, File I/O, Software Documentation, Python Programming, Computer Programming, Program Development, Technical Documentation, Integrated Development Environments, Data Structures
★ 4.7 (6.7K) · Beginner · Course · 1 - 3 Months