"Model interpretation through lower-dimensional posterior
summarization"
by Spencer Woody, Carlos M. Carvalho, and Jared
S. Murray
toy-sigmoid-example.R
contains code for the toy example in Section XX which illustrates how our summarization approach can approximate the partial effects in nonparametric regression models.sim-itx-search.R
contains code for the simulation example in Section XX which demonstrates our method for discovering the most significant interactions present in nonparametric regression models. This script creates 20 simulations, whilesim-itx-search-big.R
contains 1000 simulations.crime-example.R
contains code for the linear summary of linear regression model used the crime example regression analysis in Section XX.CA-example-[xxx].R
these scripts replicate the extensive case study of Section 4, summarizing a nonparametric regression model for housing prices in California at the census tract level.CA-example-01dataprep.R
reads in and transforms the data.CA-example-02GPfit.R
fits a Gaussian process regression model to the data.CA-example-03GPposterior.R
computes MCMC draws from the posterior of the GP regression model and the error variance parameter.CA-example-04globalsummaries.R
computes global summaries (linear, additive, additive with bivariate interaction), and the interaction search mentioned in Section 4.1.CA-example-05localsummaries.R
computes local linear summaries for the GP regression model, at various resolutions of locality (metropolitan area, county, city, and neighborhood).
R/
contains R functions for the rest of the analysis.src/
contains source C++ functions used in R scripts.data/
contains the California housing price data.
Details for these analyses can be found in the original paper.
Spencer Woody
Statistics PhD Candidate, UT-Austin
Email: spencer.woody@utexas.edu