survival curve (Kaplan Maier estimator) - arcturus9/useful-link GitHub Wiki

Kaplan–Meier estimator
https://en.wikipedia.org/wiki/Kaplan%E2%80%93Meier_estimator

Nonparametric estimation from incomplete observations (EL Kaplan, P Meier - Journal of the American statistical association, 1958 , cited 54657)
http://www.nativefishlab.net/library/internalpdf/21383.pdf