Hello! I am new to bayesian statistics and currently following a book called “Bayesian Analysis for the Social Sciences”. In chapter 7 a hierarchical model is used in the example 7.6 to conduct one-way ANOVA. In the book the following code is presented [image] I’ve built the same model (I guess)…

I think Simon is right that the problem is the variance parameter. iirc BUGS/JAGS always parameterizes Normal distributions with the precision (tau), rather than the standard deviation (sigma). This is also available in PyMC. You can do this instead: alphas=pm.Normal('alphas',mu=mu, tau=tau[1]*…

Anova - MathAch dataset of 160 schools with math achievements of students

Questions v5

alex7and7er November 18, 2023, 9:40am 5

Here is the data
MathAchieve.csv (271.2 KB)

Topic		Replies	Views
Multilevel model specification Questions	8	1066	January 2, 2020
Question about PyMC3 inference in hierarchial model Questions	7	807	April 23, 2018
A little change to the sample code of MAP, however Questions	10	1136	April 1, 2018
Divergent behavior between Kruschke's BESTmcmc and PyMC3 Questions	2	545	December 16, 2018
Hierarchical linear model with two parent distributions Questions	16	1338	September 15, 2018

Anova - MathAch dataset of 160 schools with math achievements of students

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