Rank and Signed-Rank Tests for Random Coefficient Regression Model

2016 ◽  
Vol 5 (2) ◽  
pp. 233-247 ◽  
Author(s):  
Mohamed Fihri ◽  
Amal Mellouk ◽  
Abdelhadi Akharif
2004 ◽  
Vol 8 (4) ◽  
pp. 247-260 ◽  
Author(s):  
Lars Erichsen ◽  
Per Bruun Brockhoff

In this paper we apply a statistical model combining a random coefficient regression model and a latent class regression model. The EM-algorithm is used for maximum likelihood estimation of the unknown parameters in the model and it is pointed out how this leads to a straightforward handling of a number of different variance/covariance restrictions. Finally, the model is used to analyze how consumers' preferences for eight coffee samples relate to sensory characteristics of the coffees. Within this application the analysis corresponds to a model-based version of the so-called external preference mapping.


1995 ◽  
Vol 37 (6) ◽  
pp. 657-672 ◽  
Author(s):  
Jyrki Möttonen ◽  
Hannu Oja ◽  
Ulf Krause ◽  
Paula Rantakallio

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