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Title:

Maximally selected chi-square statistics and binary splits of nominal variables.

Document type:
Journal Article
Author(s):
Boulesteix, AL
Abstract:
We address the problem of maximally selected chi-square statistics in the case of a binary Y variable and a nominal X variable with several categories. The distribution of the maximally selected chi-square statistic has already been derived when the best cutpoint is chosen from a continuous or an ordinal X, but not when the best split is chosen from a nominal X. In this paper, we derive the exact distribution of the maximally selected chi-square statistic in this case using a combinatorial appro...     »
Journal title abbreviation:
Biom J
Year:
2006
Journal volume:
48
Journal issue:
5
Pages contribution:
838-48
Language:
eng
Pubmed ID:
http://view.ncbi.nlm.nih.gov/pubmed/17094347
Print-ISSN:
0323-3847
TUM Institution:
Institut für Medizinische Statistik und Epidemiologie
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