See my Github page for source code and documentation.
aqsr – Provides an R interface for accessing the Environmental Protection Agency (EPA) Air Quality System (AQS) database. Github
spconf – Implements a method for computing the effective bandwidth, which can be used to select the amount of adjustment for unmeasured spatial confounding. (Keller and Szpiro. 2020. doi:10.1111/rssa.12556)
predkmeans – Implementation of the predictive k-means method, which performs clustering while incorporating external covariates. Designed primarily to improve accuracy when predicted cluster membership for unobserved locations. The motivating application was prediction of multipollutant profiles based on particulate matter components. (Keller et al. 2017. AOAS. doi:10.1214/16-AOAS992)
eshrink – Implements a method for selecting the penalty parameter in ridge regression and LASSO by minimizing estimated bias and variance. (Keller and Rice. 2018. AJE. doi:10.1093/aje/kwx225)