Abstract #301519

The views expressed here are those of the individual authors
and not necessarily those of the ASA or its board, officers, or staff.

Back to main JSM 2002 Program page
JSM 2002 Abstract #301519
Activity Number: 142
Type: Topic Contributed
Date/Time: Monday, August 12, 2002 : 2:00 PM to 3:50 PM
Sponsor: Section on Statistical Graphics*
Abstract - #301519
Title: Exploring Mean Structure in Longitudinal Data with Graphics: Linked Brushing Approach
Author(s): Ozlem Ilk*+
Affiliation(s): Iowa State University
Address: 2304 Knapp Street No: 4, Ames, Iowa, 50014, Usa
Keywords: Linked brushing ; Longitudinal data ; Visual methods
Abstract:

The complex structure of longitudinal data with associated discrete covariates requires developing visual methods for a better understanding of underlying structures. In this paper, a simple and flexible method, linked brushing, was studied for such datasets to detect the mean structure, and inferences for data visualization based on permutation tests were attempted. Methods were applied to a random dataset from The Panel Study of Income Dynamics (PSID), which was first used by Faraway (1999) to illustrate an exploratory method. Comparisons of results with his approach and ours were stated. Results show that our approach is promising as a primary analysis tool in detecting mean structures, unexpected responses, and effect interactions.

  • The address information is for the authors that have a + after their name.
  • Authors who are presenting talks have a * after their name.

Back to the full JSM 2002 program

JSM 2002

For information, contact meetings@amstat.org or phone (703) 684-1221.

If you have questions about the Continuing Education program, please contact the Education Department.

Revised March 2002