Understanding Intuitive Generalized Linear Models and ANOVA Interaction Effects
This document provides a comprehensive overview of Intuitive Generalized Linear Models (GLM) and the application of ANOVA in understanding interaction effects. It dissects the sums of squares associated with various factors—including rows, columns, and interactions—while explaining the partitioning of the total sum of squares. Detailed equations illustrate the relationships among different variables, contributing to a clearer understanding of variance in data analysis. Experts and students alike will find valuable insights into statistical modeling and interpretation.
Understanding Intuitive Generalized Linear Models and ANOVA Interaction Effects
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Presentation Transcript
(Xijk – Xij.) + (Xi.. – X...) + (X.j. – X...) + (Xij. -Xi.. - X.j. + X…) Eijk + Ri.. + C.j. + Iij. (Xijk – X…) = Ri.. + C.j. + Iij. + Eijk
Iij. = (Xij. - Xi.. - X.j. + X…) = Xij. – [(Xi.. – X…) + (X.j. – X…) + X…] Interaction = Iij.= Xij. – [Di.. + D.j. + X…] Interaction
SS= sum [ (Xijk – Xij.) + (Xi.. – X...) + (X.j. – X...) + (Xi.. + X.j. – Xij. – X…)]2 SStotal = SSerror + SSrows + SScolumns + SSinteraction SS= sum(Xijk – X…)2