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000097782 024 8_ $9 driver $9 artpubuab $a oai:ddd.uab.cat:97782
000097782 035 __ $9 articleid $a 16962281v32n2p115
000097782 041 __ $a eng
000097782 100 __ $a Ortega, Edwin M. M.
000097782 245 1_ $a Assessing influence in survival data with a cure
000097782 520 3_ $a Diagnostic methods have been an important tool in regression analysis to detect anomalies, such as departures from error assumptions and the presence of outliers and influential observations with the fitted models. Assuming censored data, we considered a classical analysis and Bayesian analysis assuming no informative priors for the parameters of the model with a cure fraction. A Bayesian approach was considered by using Markov Chain Monte Carlo Methods with Metropolis-Hasting algorithms steps to obtain the posterior summaries of interest. Some influence methods, such as the local influence, total local influence of an individual, local influence on predictions and generalized leverage were derived, analyzed and discussed in survival data with a cure fraction and covariates. The relevance of the approach was illustrated with a real data set, where it is shown that, by removing the most influential observations, the decision about which model best fits the data is changed.
000097782 540 __ $9 info:eu-repo/semantics/openAccess $a Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. $u http://creativecommons.org/licenses/by-nc-nd/3.0/es/
000097782 546 __ $a Anglès
000097782 599 __ $a recerca
000097782 653 1_ $a Cure fraction
000097782 653 1_ $a Bayesian inference
000097782 653 1_ $a Local influence
000097782 653 1_ $a Generalized leverage
000097782 653 1_ $a Survival data
000097782 655 _4 $a info:eu-repo/semantics/article
000097782 655 _4 $a info:eu-repo/semantics/publishedVersion
000097782 700 __ $a Cancho, Vicente G.
000097782 700 __ $a Lachos, Victor Hugo
000097782 773 __ $g Vol. 32, Núm. 2 (July-December 2008), p. 115-140 $t SORT : statistics and operations research transactions $x 1696-2281
000097782 856 40 $p 26 $s 333079 $u http://ddd.uab.cat/uab/sort/sort_a2008m7-12v32n2/sort_a2008m7-12v32n2p115.pdf
000097782 973 __ $f 0115 $l 140 $m July-December $n 2 $v 32 $x sort_a2008m7-12v32n2 $y 2008
000097782 980 __ $a ARTPUB $b UAB $b SORT