Roger Peng

Simple key-value database using SQLite as the backend

General polygon clipping routines for R based on Alan Murta's C library.

Weather and air pollution data, risk estimates, and other information from the Medicare Air Pollution Study (MCAPS) of 204 U.S. counties, 1999--2002

A function for plotting multivariate time series data

Simple bootstrap routines.

A Set of Tools for Administering SHared Repositories

Functions for two level normal models as described in Everson and Morris (2000). J. R. Statist. Soc. B, 62 prt 2, pp.399--412.

Tools for specifying time series regression models

Tools for analyzing R expressions or blocks of code and determining the dependencies between them. It focuses on R scripts, but can be used on the bodies of functions. There are many facilities including the ability to summarize or get a high-level view of code, determining dependencies between variables, code improvement suggestions.

Makes a cat explain R objects in plain English, based on a set of templates.

Explains R objects in plain English, based on a set of templates.

Edge-corrected kernel density estimation and binary kernel regression estimation for multivariate spatial point process data. For details, see Diggle, P.J., Zheng, P. and Durr, P. A. (2005) <doi:10.1111/j.1467-9876.2005.05373.x>.

Functions to convert between weather metrics, including conversions for metrics of temperature, air moisture, wind speed, and precipitation. This package also includes functions to calculate the heat index from air temperature and air moisture.