Browsing by Author "Barrio, Irantzu"
Now showing items 1-2 of 2
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Comparison of two discrimination indexes in the categorisation of continuous predictors in time-to-event studies
(Institut d'Estadística de Catalunya, 2017-06-21)
Article
Open AccessThe Cox proportionalhazards model is the most widely used su rvival prediction model for analysing time-to-event data. To measure the discrimination ability of a survival model the concordance probability index is ... -
On the optimism correction of the area under the receiver operating characteristic curve in logistic prediction models
(Institut d'Estadística de Catalunya, 2019-06-11)
Article
Open AccessWhen the same data are used to fit a model and estimate its predictive performance, this estimate may be optimistic, and its correction is required. The aim of this work is to compare the behaviour of different methods ...
