search for: 052168689x

Displaying 3 results from an estimated 3 matches for "052168689x".

2011 Mar 30
2
glm: modelling zeros as binary and non-zeroes as coming from a continuous distribution
...continuous data using a conditional approach, whereby zeroes are modelled as coming from a binary distribution, while non-zero values are modelled as log-normal. So far, I've come across two solutions for this: one, in R, is described in the book by Gelman & Hill (http://www.amazon.com/dp/052168689X), where they just model zeros and non-zeros separately and then bring them together by simulation. I can do this, but it makes it difficult to assess the significance of regression coefficients wrt to zero and each other. Another solution I have been pointed at is in SAS: http://listserv.uga.edu/c...
2009 Mar 14
0
[multi-level model] set up categorical variable/indicator?
Hi everyone, I'm working on a multi-level model based on one of the "radon" example from Gelman & Hill's book ( http://www.amazon.com/Analysis-Regression-Multilevel-Hierarchical-Models/dp/052168689X/ref=pd_bbs_1?ie=UTF8&s=books&qid=1237069199&sr=8-1 ). I add an "region" indicator (has numeric values from 1 to 5) as the varying intercept in my model (I use "county" data in Minnesota [MN] as my county-level indicator and interact it with "basement"(bsmt...
2012 Jan 19
4
Bayesian data analysis recommendations
Dear all, I am trying to learn Bayesian inference and Bayesian data analysis, I am new in the field. Would any experts on the list recommend any good sites or materials for beginners? My approach is to learn and understand the theory first, then program on my own using R, though I see there are already packages. appreciate any help, thanks in advance!