Current Volume | Browse | Search | RSSHome | Instructions for Authors | JSS Style Guide | Editorial Board

Authors: Martyn Plummer, Bendix Carstensen
Title: [download]
(4028)
Lexis: An R Class for Epidemiological Studies with Long-Term Follow-Up
Reference: Vol. 38, Issue 5, Jan 2011
Submitted 2010-02-09, Accepted 2010-09-16
Type: Article
Abstract:

The Lexis class in the R package Epi provides an object-based framework for managing follow-up time on multiple time scales, which is an important feature of prospective epidemiological studies with long duration. Follow-up time may be split either into fixed time bands, or on individual event times and the split data may be used in Poisson regression models that account for the evolution of disease risk on multiple time scales. The summary and plot methods for Lexis objects allow inspection of the follow-up times.

Paper: [download]
(4028)
Lexis: An R Class for Epidemiological Studies with Long-Term Follow-Up
(application/pdf, 368.8 KB)
Supplements: [download]
(983)
Epi_1.1.20.tar.gz: R source package
(application/x-gzip, 900 KB)
[download]
(1011)
v38i05.R: R example code from the paper
(application/octet-stream, 5 KB)
Resources: BibTeX | OAI
Creative Commons License
This work is licensed under the licenses
Paper: Creative Commons Attribution 3.0 Unported License
Code: GNU General Public License (at least one of version 2 or version 3)
Current Volume | Browse | Search | RSSHome | Instructions for Authors | JSS Style Guide | Editorial Board