survival analysis

From this article, we will use R language to perform survival analysis to a data set, in order to demonstrate some syntax and show the procedural of survival analysis using R. The Data A very classic data set is used in the purpose of demonstration. Here is a glance of the data set. > library(survival) > data(lung) > head(lung) inst time status age sex ph.ecog ph.karno pat.karno meal.cal wt.loss 1 3 306 2 74 1 1 90 100 1175 NA 2 3 455 2 68 1 0 90 90 1225 15 3 3 1010 1 56 1 0 90 90 NA 15 4 5 210 2 57 1 1 90 60 1150 11 5 1 883 2 60 1 0 100 90 NA 0 6 12 1022 1 74 1 1 50 80 513 0 This data set is about “survival in patients with advanced lung cancer from the North Central Cancer Treatment Group....

What is Survival Analysis and When to Use It? Survival analysis can be generalized as time-to-event analysis, which is analyzing the time to certain event (e.g. disease, death, or some positive events, etc.). Survival analysis gives us the estimation of, for example: the time it takes before some events occur; the probability of having experienced certain event at certain time point; or which factors have what effect on the time to certain event....