Journal
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
Volume 45, Issue 18, Pages 12196-12205Publisher
WILEY
DOI: 10.1002/mma.7970
Keywords
ANOVA; inference; mixed models; prime basis factorial models
Categories
Funding
- Portuguese Foundation for Science and Technology [UIDB/00212/2020, UIDB/00297/2020]
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Prime basis factorial models allow the simultaneous study of a larger number of interactions and a recurrence method for obtaining the sums of squares in these models is presented in this work. The method can be applied in cases with any number of factors and levels, and it is validated with an application to real data.
Prime basis factorial models have the advantage of allowing the simultaneous study of a larger number of interactions compared to classical approaches. However, the procedures for obtaining the sums of squares can be somewhat cumbersome. In this work, we present a recurrence method for obtaining the sums of squares in prime basis factorial models. Nevertheless, this recurrence procedure may be applied in cases with any number of factors and levels, even when it is neither a prime nor a power of a prime. We illustrate the method with an application to real data, where the percentage of total deaths due to cancer, diabetes, and any circulatory system disease in three European countries, in 3 years, is compared. We compare the results with the ones obtained using ANOVA.
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