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An EWMA control chart for the multivariate coefficient of variation

Giner-Bosch, Vicent; Tran, Kim Phuc; Castagliola, Philippe; Khoo, Michael Boon Chong (John Wiley & Sons, 2019-10)

[EN] Monitoring the multivariate coefficient of variation over time is a natural choice when the focus is on stabilising the relative variability of a multivariate process, as is the case in a significant number of real ...
Efficient evaluation of a continued fraction involved in the calculation of the moments of the sample multivariate coefficient of variation squared

Giner Bosch, Vicent (Universitat Politècnica de València, 2020-12-10)

This document presents a pseudocode routine to calculate the term C(a,z) described in the work by Giner-Bosch, Tran, Castagliola and Khoo [Qual. Reliab. Eng. Int. 35 (2019), pp. 1515–1541].
Gráficos de control para el coeficiente de variación multivariante: estado actual y análisis comparativo

Suárez Cabello, Mauricio Jhonatan (Universitat Politècnica de València, 2019-10-25)

[ES] El coeficiente de variación multivariante es una medida relativa de la dispersión de un pro-ceso que toma en cuenta las desviaciones típicas, covarianzas y las medias del conjunto de variables involucradas, dando como ...

Mostrando ítems 1-3 de 3