A distance based test on random trees

Date
Authors
Flesia, Ana Georgina
Fraiman, Ricardo
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
In this paper, we address the question of comparison between populations of trees. We study an statistical test based on the distance between empirical mean trees, as an analog of the two sample z statistic for comparing two means. Despite its simplicity, we can report that the test is quite powerful to separate distributions with different means but it does not distinguish between different populations with the same mean, a more complicated test should be applied in that setting. The performance of the test is studied via simulations on Galton-Watson branching processes. We also show an application to a real data problem in genomics.
Comment: 10 pages, 1 figure
Keywords
Mathematics - Statistics Theory
Citation
Collections