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.

University of Michigan
Skills you'll gain: JSON, Data Processing, Data Wrangling, Restful API, Data Manipulation, Data Access, Application Programming Interface (API), Python Programming, Data Import/Export, Data Transformation, Data Structures, File I/O, Data Collection
★ 4.7 (4.1K) · Intermediate · Course · 1 - 4 Weeks

Arizona State University
Skills you'll gain: Data Transformation, Engineering Management, Data-Driven Decision-Making, Capacity Planning, Capacity Management, Decision Intelligence, Data Management, Management Reporting
Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Data Visualization, Data Visualization Software, Empathy, Data Storytelling, Tableau Software, Risk Analysis, Data-Driven Decision-Making, Data Analysis, Risk Management, Empathy & Emotional Intelligence, Stakeholder Analysis, Business Risk Management, Human Centered Design, Decision Making, User Research, Risk Control, Diversity and Inclusion, Psychology
Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Portfolio Management, Financial Data, Time Series Analysis and Forecasting, Performance Measurement, Financial Forecasting, Market Data, Forecasting, Analytics, Financial Trading, Financial Analysis, R Programming, Financial Market, Portfolio Risk, Trend Analysis, Investment Management, Investments, Model Evaluation, Statistical Methods, Correlation Analysis, Risk Analysis
★ 4.4 (223) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Feature Engineering, Dimensionality Reduction, Data Integration, Data Preprocessing, Exploratory Data Analysis, Data Visualization, Plot (Graphics), Data Compilation, Matlab, Scientific Visualization, Data Processing, Data Cleansing, Data Wrangling, Data Manipulation, Histogram, Data Transformation, Data Science, Text Mining, Predictive Modeling, Unstructured Data
★ 4.7 (351) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Exploratory Data Analysis, Box Plots, Plot (Graphics), Data Visualization, Ggplot2, Data Visualization Software, Statistical Visualization, Scatter Plots, Histogram, Data Analysis, Graphing, Python Programming
★ 4.6 (16) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Excel Macros, Data Validation, Scatter Plots, Plot (Graphics), Pivot Tables And Charts, Microsoft Excel, Data Visualization, Regression Analysis, Excel Formulas, Statistical Visualization, Histogram, Data Analysis, Data Integrity, Statistical Modeling, Descriptive Statistics, Spreadsheet Software, Analytics, Financial Data, Financial Analysis, Automation
★ 4.9 (31) · Beginner · Specialization · 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
Degree · 1 - 4 Years

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

Johns Hopkins University
Skills you'll gain: Apache Hadoop, Apache Hive, Big Data, Apache Spark, NoSQL, Data Management, Data Processing, Databases, Data Integration, SQL, Query Languages, Data Manipulation, Scripting Languages, Data Transformation, Software Installation
Intermediate · Course · 1 - 3 Months

Logical Operations
Skills you'll gain: R Programming, R (Software), Data Science, Data Analysis, Statistical Modeling, Data Visualization, Statistical Analysis, Statistical Visualization, Regression Analysis, Statistical Machine Learning, Plot (Graphics), Data Structures, Computer Programming, Decision Tree Learning, Machine Learning Methods, Machine Learning, Software Development, Computer Programming Tools, Data Import/Export, Machine Learning Algorithms
Intermediate · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Data Manipulation, Tidyverse (R Package), Data Wrangling, Data Analysis, R Programming, R (Software), Data Transformation, Statistical Analysis
★ 4.6 (22) · Beginner · Guided Project · Less Than 2 Hours