This introduction to the R package modTempEff is a slightly modified version of Muggeo (2010) published in the Journal of Statistical Software. Please cite Muggeo (2010) and Muggeo (2008a) if you use the package. Here we present and discuss the R package modTempEff including a set of functions aimed at modelling temperature effects on mortality with time series data. The functions fit a particu...

Yu et al. (Fuzzy Sets and Systems 105 (1999) 429) performed general piecewise necessity regression analysis based on linear programming (LP) to obtain the necessity area. Their method is the same as that according to data distribution, even if the data are irregular, practitioners must specify the number and the positions of change-points. However, as the sample size increases, the number of ch...

This study integrates a Box-Cox power transformation procedure into a common trend two-phase regression model based test (the PMFred algorithm) for detecting changepoints, to make the test applicable to non-Gaussian data series, such as non-zero daily precipitation amounts or wind speeds. The detection power aspects of the transformed method (transPMFred) are assessed by a simulation study, whi...

Abstract This paper investigates gender differences in university performances Science, Technology, Engineering and Mathematics (STEM) courses Italy, proposing a novel application through the segmented regression models. The analysis concerns freshmen students enrolled at 3-year STEM degree Italian universities last decade, with focus on relationship between number of credits earned during firs...

Purpose To characterize macular ganglion cell layer (GCL) changes with age and provide a framework to assess changes in ocular disease. This study used data clustering to analyze macular GCL patterns from optical coherence tomography (OCT) in a large cohort of subjects without ocular disease. Methods Single eyes of 201 patients evaluated at the Centre for Eye Health (Sydney, Australia) were r...