Abstract

SALINAS, HUGO S.; MARTINEZ-FLOREZ, GUILLERMO  and  MORENO-ARENAS, GERMÁN. Censored Bimodal Symmetric-Asymmetric Alpha-Power Model. Rev.Colomb.Estad. [online]. 2013, vol.36, n.2, pp.285-301. ISSN 0120-1751.

We introduce the censored bimodal symmetric-asymmetric alpha-power models to adjust censored data with bimodality and high levels of skewness and kurtosis. The moments corresponding are computed, the maximum likelihood estimation for the model parameters is considered and the observed information matrix is derived. We show the appropriateness of the proposed models through two applications with censored real data related to HIV-1 RNA measurement.

Keywords : AART; alpha-power model; bimodality; censorship; cumulative distribution; HIV-1 RNA; limit of detection; power-normal model.

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