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The Series Finale of Online Education: Coursera Acquires Udemy

$7.2 billion in combined revenue since 2020. $8 billion in lost market value. This merger marks the end of an era in online education.

Dhawal Shah Feb 11, 2026

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Comprehensive Data Visualization with ggplot2

Master data visualization techniques with ggplot2, from basic scatter plots to advanced faceted graphics. Create customized plots using aesthetics, themes, annotations, and scales to effectively communicate complex insights.
- CodeSignal
- 2 hours
- On-Demand
- Free Certificate
Introduction to Data Science with R

Master R programming fundamentals, data manipulation, visualization, and predictive modeling while building practical skills for analyzing and transforming data using powerful statistical tools.
- CodeSignal
- 2 hours
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- Free Certificate
Data Manipulation in R with dplyr

Master data manipulation techniques in R using dplyr to filter, select, summarize, group, mutate, and reshape datasets effectively for advanced data analysis and transformation.
- CodeSignal
- 1 hour
- On-Demand
- Free Certificate
Data Visualization with ggplot2

Master data visualization techniques in R using ggplot2, from basic scatter plots to advanced customization. Create compelling graphics with themes, aesthetics, and various plot types to effectively communicate insights.
- CodeSignal
- 2 hours
- On-Demand
- Free Certificate
Practical Request Processing with Mock Data

Master request processing in Express.js through hands-on practice with mock data, covering advanced endpoints, authentication, error handling, and API development using practical examples and real-world scenarios.
- CodeSignal
- 3 hours
- On-Demand
- Free Certificate
Managing Data with MongoDB and Mongoose

Master MongoDB data management with Mongoose, from setting up database connections to handling relationships, validations, and API development in Express.js applications.
- CodeSignal
- 3 hours
- On-Demand
- Free Certificate
Retrieving and Manipulating Data with Mongoose

Master MongoDB data operations through Mongoose - from basic CRUD to advanced querying. Build robust Express.js applications with efficient document management and complex data retrieval techniques.
- CodeSignal
- 3 hours
- On-Demand
- Free Certificate
Leading Partnership-Centered Change Management

Master partnership-centered change management through empathy and strategic foresight. Guide organizations from readiness assessment to sustained engagement with clear communication strategies.
- CodeSignal
- 1 hour
- On-Demand
- Free Certificate
Navigating Data Simplification with PCA

Master dimensionality reduction techniques using Principal Component Analysis (PCA) with Python's Scikit-learn, from basic concepts to practical implementation in machine learning projects.
- CodeSignal
- 3 hours
- On-Demand
- Free Certificate
Introduction to Simple Data Structures in Ruby

Master arrays and hashes in Ruby through hands-on practice, learning to create, manipulate, and work with nested data structures for real-world programming applications.
- CodeSignal
- 1 hour
- On-Demand
- Free Certificate
Mastering Complex Data Structures in C#

Master advanced C# data structures including dictionaries, sets, tuples, and nested structures. Build practical skills in managing complex data through hands-on exercises and real-world applications.
- CodeSignal
- 3 hours
- On-Demand
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Projection, Filtering, and Aggregation of Data Streams

Master data stream manipulation in C# through hands-on practice with projection, filtering, and aggregation techniques, using both procedural and functional programming approaches.
- CodeSignal
- 3 hours
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Practicing Intermediate Implementation and Data Streams

Master data stream manipulation and aggregation in C# through hands-on practice with real-world scenarios, from product reviews to transaction tracking and user management systems.
- CodeSignal
- 2 hours
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Working Capital and Cash Management

Master cash flow optimization through balance sheet management, inventory strategies, and working capital transformation to prevent cash shortages in profitable companies.
- CodeSignal
- 1 hour
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Mastering Complex Data Structures in JavaScript

Master advanced JavaScript data structures, from arrays and sets to maps and nested structures. Build practical applications while learning to manage complex data efficiently through hands-on exercises.
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