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.

Duke University
Skills you'll gain: Exploratory Data Analysis, R (Software), Ggplot2, Statistical Reporting, Data Visualization Software, Tidyverse (R Package), Data Visualization, Version Control, Data Analysis, Plot (Graphics), Statistics, Statistical Visualization, Data Wrangling, Data Science, R Programming, GitHub, Data Transformation, Statistical Analysis, Git (Version Control System), Statistical Programming
Beginner · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Descriptive Analytics, Analytics, Dashboard, Data Literacy, Dashboard Creation, Data Analysis, Amazon Web Services, Data-Driven Decision-Making, Data Visualization, Cloud Security, Cloud Computing
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 Analysis, Statistical Methods, Mathematical Software, Data Science, Scheduling, Data Security, Data Integrity, Data Manipulation, Data Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Stored Procedure, Database Development, SQL, Database Management, Database Architecture and Administration, Test Script Development, Data Integrity, Query Languages, Performance Tuning, Continuous Deployment, Data Transformation, Data Migration, CI/CD, Jest (JavaScript Testing Framework), Verification And Validation, Debugging, Auditing, Plan Execution, Statistical Hypothesis Testing, Computer Graphic Techniques
Advanced · Course · 1 - 3 Months

Northeastern University
Skills you'll gain: Data Storytelling, Generative AI, Text Mining, Data Warehousing, Unsupervised Learning, Database Design, Data Governance, Data Mining, Interactive Data Visualization, Data Presentation, Generative Model Architectures, Web Scraping, Classification Algorithms, PyTorch (Machine Learning Library), Operations Research, Natural Language Processing, NoSQL, Exploratory Data Analysis, Recurrent Neural Networks (RNNs), Time Series Analysis and Forecasting
Earn a degree
Degree · 1 - 4 Years

Skills you'll gain: GIS Software, Model Evaluation, Geographic Information Systems, Extract, Transform, Load, Spatial Analysis, Spatial Data Analysis, Geospatial Mapping, Data Pipelines, Geospatial Information and Technology, Geostatistics, Apache Airflow, Interactive Data Visualization, Cloud Computing, Leaflet (Software), Google Cloud Platform, Environmental Monitoring, Model Training, Graphic and Visual Design, Pandas (Python Package), Python Programming
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Seaborn, Plot (Graphics), Matplotlib, Data Visualization, Scatter Plots, Statistical Visualization, Data Presentation, Box Plots, Exploratory Data Analysis, Data Visualization Software, Descriptive Statistics, Data Storytelling, Statistical Methods, Data-Driven Decision-Making, Statistical Modeling, Statistical Analysis, Python Programming, Color Theory
Beginner · Specialization · 1 - 3 Months

University of California, Davis
Skills you'll gain: Spatial Analysis, ArcGIS, Geospatial Information and Technology, Geographic Information Systems, Geospatial Mapping, GIS Software, Data Quality, Data Mapping, Data Modeling, Database Design, Data Storage Technologies, Data Management, Data Literacy, Data Storage, Data Sharing, Data Manipulation, Data Capture, Interactive Data Visualization, Query Languages, Analytics
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Dashboard Creation, Dashboard, Data Visualization, Data Storytelling, Data Presentation, Interactive Data Visualization, Statistical Visualization, Power BI, Data Visualization Software, Presentations, Business Intelligence, Data Analysis Expressions (DAX), Market Data, Market Analysis, Storytelling, Report Writing, Target Audience, Data Integration, Data Validation, Usability Testing
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Rmarkdown, Data Science, Version Control, R (Software), Big Data, R Programming, General Science and Research, Software Development Tools, GitHub, Statistical Programming, Git (Version Control System), Software Versioning, Software Configuration Management, Data Analysis, Statistical Reporting, Integrated Development Environments, Software Installation
Mixed · Course · 1 - 4 Weeks

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, Financial Trading, Market Trend, Statistical Analysis, Probability Distribution, Consumer Behaviour, Risk Analysis, Finance, Business
Mixed · Course · 1 - 3 Months

Skills you'll gain: Data Visualization, Matplotlib, Plot (Graphics), Data Visualization Software, Data Structures, Data Manipulation, Pandas (Python Package), NumPy, Data Processing, Data Wrangling, Python Programming
Beginner · Course · 1 - 4 Weeks