Copyright(C) Elif Acar, Lei Sun
GKW.test is a R function that implements the
Kruskal-Wallis test proposed to
incorporate group uncertainty into the classical rank-based test (Acar
and Sun, 2010).
The extended test statistic is based on probability-weighted
rank-sums and follows an asymptotic chi-square distribution with
k-1 degrees of freedom under the null hypothesis.
The work here was originally motivated by the analysis of imputed
SNPs in genome-wide association studies (GWAS), application of the proposed method however is not
limited to this type of data, suitable for analyses of other genetic markers
including variants identified in the next-generation sequencing (NGS) experiments, and goes beyond
studies of genetic data.
Contact: Elif Fidan Acar, elif at utstat dot toronto dot edu or
Lei Sun, sun at utstat dot toronto dot edu