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| # | |
| # ETP-API-KM.R, 26 Oct 18 | |
| # | |
| # Data from: | |
| # Survival of Eclipse Third-party Plug-ins | |
| # John Businge and Alexander Serebrenik and Mark van den Brand | |
| # | |
| # Example from: | |
| # Evidence-based Software Engineering: based on the publicly available data | |
| # Derek M. Jones | |
| # | |
| # TAG Eclipse plugin API survival | |
| source("ESEUR_config.r") | |
| library("survival") | |
| pal_col=rainbow(2) | |
| all_API=read.csv(paste0(ESEUR_dir, "survival/ETP/ETP-all-rel.csv.xz"), as.is=TRUE) | |
| # Technically, this is interval censored data (we don't have an exact time | |
| # for when the release occured, only end of year counts). | |
| api_surv=Surv(all_API$year_end-all_API$year_start, | |
| event=all_API$survived == 0, type="right") | |
| api_mod=survfit(api_surv ~ all_API$API) | |
| plot(api_mod, col=pal_col, conf.int=TRUE, | |
| xlim=c(0,7), xlab="Years") | |