This is the program for the 2010 Joint Statistical Meetings in Vancouver, British Columbia.

Abstract Details

Activity Number: 360
Type: Contributed
Date/Time: Tuesday, August 3, 2010 : 10:30 AM to 12:20 PM
Sponsor: Biometrics Section
Abstract - #308911
Title: An Informatics Center for Online Longitudinal Data Analysis
Author(s): Edward C. Chao+ and Tao Qi*
Companies: Data Numerica Institute, Inc. and Annpro Analytic Technologies, Inc.
Address: 6120 149th Ave SE, Bellevue, WA, 98006,
Keywords: cloud computing ; dynamic graphics ; longitudinal data ; missing data ; missing not at random ; sensitivity analysis

An integrated online data analysis platform for longitudinal data analysis, Longit Informatics Center, is presented. The environment allows data analysts to apply advanced methods to analyze longitudinal data with complete or non-ignorable missing outcomes. Longit is also an environment for users to share resources online, e.g. publishing data, analyses, graphics and methods. Users may run data analysis and learn case studies from others. The modeling methods include mixed models and smoothing methods for heterogeneous data and dropout data. In the analysis, methods for sensitivity analysis are developed. These methods are integrated with dynamic graphical methods to study the departure from the modeling assumption such as missing not at random.

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