
Explore the survival analysis in R course structure, focusing on scripts, downloadable data, and core tools like the survival object, Kaplin Maior estimate, and the log rank test.
Explore the Kaplan-Meier estimator, a nonparametric method to estimate the survival function and its step plot, while accounting for censoring and comparing survival curves across groups.
Interpret the Cox proportional hazards results from the summary output, examine the concordance statistic and coefficients to assess covariate influence on survival, and view the plot around 65 months.
Learn how Aalen's additive regression model captures time dependent covariate effects, modeling cumulative hazard as alpha(t) plus X beta(t) and revealing evolving hazard patterns.
Learn to build and interpret a Cox proportional hazards model in R with the survival package, evaluating covariates such as TRT, stage, bilirubin, risk score, and concordance.
Fit a survival tree using ranger with time and status as the input and covariates on the right, employing extra trees and permutation importance to derive an averaged survival curve.
Visualize the survival model in R by plotting the average survival probability over time as a step plot, and compare to Cox models while recognizing the small sample.
Explore missing value imputation and outlier detection to improve survival analysis, with theoretical underpinnings, practical methods, and implementations for small datasets.
Detect multivariate outliers in high-dimensional data with sign one, sign two, and pick out methods using principal component analysis distances; visualize results and interpret the W final indicator.
Survival Analysis is a sub discipline of statistics. It actually has several names. In some fields it is called event-time analysis, reliability analysis or duration analysis. R is one of the main tools to perform this sort of analysis thanks to the survival package.
In this course you will learn how to use R to perform survival analysis. To check out the course content it is recommended to take a look at the course curriculum. There are also videos available for free preview.
The course structure is as follows:
We will start out with course orientation, background on which packages are primarily used for survival analysis and how to find them, the course datasets as well as general survival analysis concepts.
After that we will dive right in and create our first survival models. We will use the Kaplan Meier estimator as well as the logrank test as our first standard survival analysis tools.
When we talk about survival analysis there is one model type which is an absolute cornerstone of survival analysis: the Cox proportional hazards model. You will learn how to create such a model, how to add covariates and how to interpret the results.
You will also learn about survival trees. These rather new machine learning tools are more and more popular in survival analysis. In R you have several functions available to fit such a survival tree.
The last 2 sections of the course are designed to get your dataset ready for analysis. In many scenarios you will find that date-time data needs to be properly formatted to even work with it. Therefore, I added a dedicated section on date-time handling with a focus on the lubridate package. And you will also learn how to detect and replace missing values as well as outliers. These problematic pieces of data can totally destroy your analysis, therefore it is crucial to understand how to manage it.
Besides the videos, the code and the datasets, you also get access to a vivid discussion board dedicated to survival analysis.
By the way, this course is part of a whole data science course portfolio. Check out the R-Tutorials instructor page to see all the other available course.
Well over 100.000 people around the world did already use our classes to master data science. Why don´t you try it out yourself? With a Udemy 30-day money back guarantee there is nothing you can lose, you can only gain precious skills to come out ahead in today’s job market.