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.

Johns Hopkins University
Skills you'll gain: Rmarkdown, Data Visualization, Statistical Visualization, R (Software), Data Import/Export, Data Visualization Software, R Programming, Tidyverse (R Package), Statistical Reporting, Data Manipulation, Data Wrangling, Data Processing, File Management, Software Installation
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Java Programming
Advanced · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Plotly, Dashboard, Dashboard Creation, Interactive Data Visualization, Plot (Graphics), Data Storytelling, Data Visualization Software, Data Visualization, Spatial Data Analysis, Data Presentation, Statistical Visualization, Geospatial Mapping, Exploratory Data Analysis, Scatter Plots, Box Plots, Data Analysis, Data Wrangling, Data Science, Pandas (Python Package), Python Programming
Intermediate · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Data Literacy, Statistical Hypothesis Testing, Scientific Methods, Data Analysis, Statistical Reporting, Experimentation, Science and Research, Research Design, Analytical Skills, General Science and Research, Research, Peer Review, Probability & Statistics, Journalism, Statistical Inference, Statistical Methods, Media and Communications, Research Methodologies
Beginner · Course · 1 - 4 Weeks

Association of International Certified Professional Accountants
Skills you'll gain: Data Literacy, Data-Driven Decision-Making, Analytics, Financial Data, Business Analytics, Data Strategy, Data Analysis, Data Storage Technologies, Project Implementation, Project Scoping, Descriptive Analytics, Unstructured Data
Beginner · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: Data Governance, Data Quality, Data Integration, Data Dictionary, Data Validation, Health Informatics, Data Maintenance, Data Cleansing, Data Modeling, Extract, Transform, Load, Data Synthesis, Analytical Skills, Health Systems, Fraud detection, Data Management, Metadata Management, Health Care, Clinical Data Management, Data Mapping, Healthcare Industry Knowledge
Intermediate · Specialization · 3 - 6 Months

Macquarie University
Skills you'll gain: Sample Size Determination, Statistical Hypothesis Testing, Statistics, Descriptive Statistics, Probability & Statistics, Microsoft Excel, Data Analysis, Statistical Analysis, Statistical Inference, Statistical Methods, Spreadsheet Software, Excel Formulas, Sampling (Statistics), Data-Driven Decision-Making, Box Plots, Probability Distribution, Descriptive Analytics, Data Visualization, Data Visualization Software, Variance Analysis
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Visualization, Data-Driven Decision-Making, Business Intelligence, Data Presentation, Data Storytelling, Interactive Data Visualization, Data Visualization Software, Power BI, Key Performance Indicators (KPIs), Performance Reporting, Graphing, Business Reporting, Analysis, Trend Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Time Series Analysis and Forecasting, Recurrent Neural Networks (RNNs), SAS (Software), Forecasting, Statistical Machine Learning, Regression Analysis, Machine Learning Methods, Applied Machine Learning, Statistical Analysis, Statistical Methods, Data Analysis Software, Predictive Modeling, Statistical Modeling, Bayesian Statistics, Model Evaluation, Predictive Analytics, Model Optimization
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Descriptive Statistics, Statistical Hypothesis Testing, Regression Analysis, Statistical Programming, R (Software), Probability Distribution, Statistical Analysis, R Programming, Data Import/Export, Probability & Statistics, Statistical Modeling, Statistical Methods, Descriptive Analytics, Plot (Graphics), Statistics, Data Manipulation, Data Analysis, Statistical Inference, Predictive Modeling, Data Wrangling
Intermediate · Course · 1 - 3 Months
University of Washington
Skills you'll gain: Big Data, Relational Databases, Database Systems, Dataflow, Databases, Data Science, Database Theory, Data Manipulation, Data Store, Data Processing, Database Management Systems, NoSQL, Apache Spark, Distributed Computing, Apache Hadoop, SQL, Data Analysis, Query Languages, Cloud Computing, Python Programming
Mixed · Course · 1 - 3 Months

Skills you'll gain: Data Warehousing, Extract, Transform, Load, Data Pipelines, Linux Commands, SQL, IBM Cognos Analytics, Apache Kafka, Bash (Scripting Language), Apache Airflow, Shell Script, IBM DB2, Data Transformation, Data Visualization, Dashboard, File Management, Dashboard Creation, Star Schema, Database Management, Relational Databases, Stored Procedure
Beginner · Specialization · 3 - 6 Months