This course is your entry point into the world of predictive analytics with R. Designed for aspiring data analysts and business professionals, this course empowers you to build and interpret multiple linear regression models from the ground up. You will move beyond simply running code and learn to critically evaluate your model's performance. Through a series of hands-on learnings and real-world case studies, you will master the techniques to diagnose your model's statistical assumptions using residual plots and assess its reliability with k-fold cross-validation.
By the end of this course, you won't just build models—you'll build models you can trust. You'll leave with a validated, portfolio-ready project and the confidence to generate dependable forecasts that drive strategic business decisions.
This module introduces the fundamentals of predictive modeling with multiple linear regression. You will learn how to formulate, build, and interpret a regression model in R to predict outcomes like housing prices or customer churn. More importantly, you will learn to look beyond surface-level accuracy by generating and analyzing key diagnostic plots to ensure your model is statistically sound and free of common pitfalls such as nonlinearity or heteroscedasticity.
涵盖的内容
2个视频2篇阅读材料2个作业
显示有关单元内容的信息
2个视频•总计13分钟
Beyond Accuracy: The Danger of a "Wrong" Model•7分钟
Building and Diagnosing a Regression Model in R•7分钟
2篇阅读材料•总计11分钟
The Anatomy of a Multiple Regression Model•8分钟
Connecting Your Skills to Your Career•3分钟
2个作业•总计35分钟
Hands-On Learning: Build and Diagnose a Predictive Regression Model•30分钟
Knowledge Check: Interpreting Model Output and Diagnostics•5分钟
Validating Model Performance and Stability
第 2 单元•小时 后完成
单元详情
In this module, you will learn that a model is only useful if its performance is reliable. You will move beyond single-score accuracy to master k-fold cross-validation—a powerful technique for ensuring your model's stability and ensuring that it generalizes to new, unseen data. You will implement this technique in R, analyze the variance in performance across folds, and learn how to confidently report on your model's robustness, a key skill for any data professional.
涵盖的内容
2个视频2篇阅读材料2个作业
显示有关单元内容的信息
2个视频•总计13分钟
The High-Stakes World of Clinical Trials•7分钟
Implementing 10-Fold Cross-Validation in R•6分钟
2篇阅读材料•总计13分钟
Understanding K-Fold Cross-Validation•8分钟
Your Future in Advanced Analytics•5分钟
2个作业•总计60分钟
Predict and Validate Housing Prices•30分钟
Hands-On Learning: Validate Model Stability with K-Fold Cross-Validation•30分钟
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