2011
DOI: 10.1016/j.spl.2011.01.023
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A note on Left-Spherically Distributed test with covariates

Abstract: In this note we extend the Left-Spherically Distributed linear scores test (LSD) of Läuter, Glimm and Kropf test (1998, The Annals of Statistics). The LSD test is a method for multivariate testing also applicable to the p >> n (much more variables than observations). As a key feature, the score coefficients are chosen such that a left-spherical distribution of the scores is reached under the null hypothesis. Here the test is extended to account for nuisance parameters, particularly for covariates that are assu… Show more

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Cited by 2 publications
(2 citation statements)
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References 8 publications
(7 reference statements)
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“…One can adjust the p values for confounders and non-parametric approaches can be accommodated via the rank transformation (Conover and Iman, 1982). Similar results on data driven ordering are shown for instance in Läuter, Glimm, and Kropf (1998), later extended to the more general case of covariates in Finos (2011). Here we propose a much simpler proof based on the Basu theorem, and further generalize previous results to a wider class of test statistics.…”
Section: Introductionsupporting
confidence: 76%
“…One can adjust the p values for confounders and non-parametric approaches can be accommodated via the rank transformation (Conover and Iman, 1982). Similar results on data driven ordering are shown for instance in Läuter, Glimm, and Kropf (1998), later extended to the more general case of covariates in Finos (2011). Here we propose a much simpler proof based on the Basu theorem, and further generalize previous results to a wider class of test statistics.…”
Section: Introductionsupporting
confidence: 76%
“…In addition, it is known that the class of distributions satisfying when trueO˜ is the orthogonal group is the class of left‐spherical distributions (Dawid, ; Finos, ). This means that to have rotatability of trueY˜, we need to assume that trueY˜ is left‐spherically distributed.…”
Section: Null‐invariantsmentioning
confidence: 99%