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Course

Survival Analysis in R

Intermediate

4.8+

Updated 05/2025

Learn to work with time-to-event data. The event may be death or finding a job after unemployment. Learn to estimate, visualize, and interpret survival models!

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RProbability & Statistics4 hours14 videos50 Exercises3,650 XP12,768Statement of Accomplishment

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Course Description

Do patients taking the new drug survive longer than others? How fast do people get a new job after getting unemployed? What can I do to make my friends stay on the dancefloor at my party? All these questions require the analysis of time-to-event data, for which we use special statistical methods. This course introduces basic concepts of time-to-event data analysis, also called survival analysis. Learn how to deal with time-to-event data and how to compute, visualize and interpret survivor curves as well as Weibull and Cox models.

Prerequisites

Introduction to Regression in R

1

What is Survival Analysis?

The term "survival analysis"

Introducing the GBSG2 dataset

What will this course cover?

Why learn survival methods?

Digging into the GBSG2 dataset 1

Using the Surv() function for GBSG2

The UnempDur dataset

Measures used in survival analysis

Interpreting a survival curve I

Interpreting a survival curve II

Interpreting a survival curve III

2

Estimation of survival curves

Kaplan-Meier estimate

Function to compute the Kaplan-Meier estimate

First Kaplan-Meier estimate

When does the Kaplan-Meier curve drop?

Why use Kaplan-Meier

Understanding and visualizing Kaplan-Meier curves

Exercise ignoring censoring

Estimating and visualizing a survival curve

The Weibull model for estimating survival curves

Estimating median survival from a Weibull model

Survival curve quantiles from a Weibull model

Estimating the survival curve with survreg()

Visualizing the results of Weibull models

Comparing Weibull model and Kaplan-Meier estimate

3

The Weibull model

Why use the Weibull model

Interpreting coefficients

Compute Weibull model

Visualizing Weibull models

ggsurvplot() versus ggsurvplot_df()

Computing a Weibull model and the survival curves

Visualising a Weibull model

Plotting options

Other distributions than Weibull

survreg() arguments

Computing a Weibull and a log-normal model

Comparing Weibull and Log-Normal Model I

Comparing Weibull and Log-Normal Model II

4

The Cox Model

The Cox model

Computing a Cox model

Proportional hazards assumption

Visualizing the Cox model

Computing the survival curve from a Cox model

Visualizing a Cox model

surv_summary()

What we've learned

Why "imaginary patients"?

Capstone: The Cox model

Capstone: Comparing survival curves

Survival Analysis in R

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