Recently, instead of transforming responses for the analysis of designed experiments, i. e. Taguchi-type-experiments like product or combined arrays, generalized linear models as suggested by Nelder and Lee (1991) have been used to jointly model the mean and dispersion of the response. For...

The term "outlier" is probably one of the vaguest and most imprecise ones in statistical science. There is no formal definition of an outlier, which all statisticians agree upon. However, for a univariate normal null-model Davies and Gather ([12] [13]) have introduced the concept of a-outliers...

Observations which seem to deviate strongly from the main part of the data may occur in every statistical analysis. These observations, usually labelled as outliers, may cause completely misleading results when using standard methods and may also contain information about special events or...