Browsing by Author "Rodríguez-Álvarez, María Xosé"
Now showing items 1-4 of 4
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Application of receiver operating characteristic (ROC) methodology in biological studies on marine resources: sex determination of Paracentrotus lividus (Lamarck, 1816)
(Institut d'Estadística de Catalunya, 2010)
Article
Open AccessThe receiver operating characteristic (ROC) curve is usually used in biomedicine as an indicator of the accuracy of diagnostic tests. However, this measure of discrimination has been little used in other areas, such as ... -
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 ... -
Modelling spatial patterns of distribution and abundance of mussel seed using structured additive regression models
(Institut d'Estadística de Catalunya, 2010)
Article
Open AccessAs mussel farming depends on sources of natural mussel seed, knowledge of factors is required to regulate both the spatial distribution and abundance of this resource. These spatial patterns were modelled using Bayesian ... -
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 ...
