Recent & Upcoming Talks

2020

Empirical Bayes small area prediction under a zero-inflated lognormal model with correlated random effects

Many variables of interest in agricultural or economical surveys have skewed distributions and can be contaminated with a …

2019

Applications of R Shiny to Explore, Evaluate and Improve Total Survey Quality

Maintaining and assessing total survey quality on a large scale and complex survey such as the National Resource Inventory (NRI) often …

Progress Report: Visualization of Sheet and Rill Erosion on US Cropland

National Resource Inventory (NRI) is a longitudinal survey which monitors national resources on non-federal US land. It provides annual …

2018

Empirical Bayes Small Area Prediction of Sheet and Rill Erosion Using a Zero-Inflated Lognormal Model

In the Conservation Effects Assessment Project (CEAP), some of the variables are skewed right and have zeros. We proposed an empirical …

2017

Overlay Spatial Objects in R

In this talk, I'll demo a shiny application, which uses publicly available databases on soils (soils map and cropland data layer) to: …

2016

Shiny Application to Iowa DNR MSIM-SGCN Modeling

Iowa DNR MSIM-SGCN Modeling is a project supported by Iowa Department of Natural Resources, which aims at prioritizing areas of …