Multivariate Distance Matrix Regression
MDMR allows a user to conduct multivariate distance matrix regression
using analytic p-values and measures of effect size described by McArtor et
al. (second revision under review). Analytic p-values are computed using the
R package CompQuadForm (Duchesne & De Micheaux, 2010).
To access this package's tutorial, type the following line into the console:
There are two primary functions that comprise this package:
mdmr, which regresses a distance matrix onto a set of
delta, which computes measures of univariate
effect size in the context of multivariate distance matrix regression. The
help files of both functions provide more general information than the
Davies, R. B. (1980). The Distribution of a Linear Combination of chi-square Random Variables. Journal of the Royal Statistical Society. Series C (Applied Statistics), 29(3), 323-333.
Duchesne, P., & De Micheaux, P.L. (2010). Computing the distribution of quadratic forms: Further comparisons between the Liu-Tang-Zhang approximation and exact methods. Computational Statistics and Data Analysis, 54(4), 858-862.
McArtor, D. B., Lubke, G. H., & Bergeman, C. S. (second revision under review). Extending multivariate distance matrix regression with an effect size measure and the distribution of the test statistic.
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