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Fast and reliable confidence intervals for a variance component

2024/04/23 by Yiqiao Zhang, Zhang, Yiqiao, Karl Oskar Ekvall +3 · 2 citations
Agricultural and Biological Sciences · Mathematics · #Advanced Statistical Methods and Models #FOS: Computer and information sciences #FOS: Mathematics #Methodology (stat.ME) #Pesticide Residue Analysis and Safety #Statistical Methods and Applications #Statistics Theory (math.ST)

paper · pdf · doi:10.48550/arxiv.2404.15060

openalex publication_date 2024/04/23 · openalex created_date 2024/04/26 · openalex updated_date 2026/07/28

Abstract

We show that confidence intervals in a variance component model, with asymptotically correct uniform coverage probability, can be obtained by inverting certain test-statistics based on the score for the restricted likelihood. The results apply in settings where the variance is near or at the boundary of the parameter set. Simulations indicate the proposed test-statistics are approximately pivotal and lead to confidence intervals with near-nominal coverage even in small samples. We illustrate our methods' application in spatially-resolved transcriptomics where we compute approximately 15,000 confidence intervals, used for gene ranking, in less than 4 minutes. In the settings we consider, the proposed method is between two and 28,000 times faster than popular alternatives, depending on how many confidence intervals are computed.

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