The Nelson-Aalen Estimator
{"Image DocumentName": "The Nelson-Aalen Estimator", "Image ImageDescription": "The Nelson-Aalen estimator of the survivor function S(t) is given by. SNA(t) = \u220fj=1, 2, \u2026 k exp(- dj)/nj. The Nelson-Aalen estimator is also known as Altshuler\u2019s estimate. The Kaplan-Meier estimator is an approximation to the Nelson-Aalen estimator. The Nelson-Aalen estimator will always be greater than the Kaplan-Meier estimator at any time t. The Nelson-Aalen estimator performs better than the Kaplan-Meier estimator for small samples, but in most cases they are very similar.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}