Open Access
June 2023 distinct: A novel approach to differential distribution analyses
Simone Tiberi, Helena L. Crowell, Pantelis Samartsidis, Lukas M. Weber, Mark D. Robinson
Author Affiliations +
Ann. Appl. Stat. 17(2): 1681-1700 (June 2023). DOI: 10.1214/22-AOAS1689

Abstract

We present distinct, a general method for differential analysis of full distributions that is well suited to applications on single-cell data, such as single-cell RNA sequencing and high-dimensional flow or mass cytometry data. High-throughput single-cell data reveal an unprecedented view of cell identity and allow complex variations between conditions to be discovered; nonetheless, most methods for differential expression target differences in the mean and struggle to identify changes where the mean is only marginally affected. distinct is based on a hierarchical nonparametric permutation approach and, by comparing empirical cumulative distribution functions, identifies both differential patterns involving changes in the mean as well as more subtle variations that do not involve the mean. We performed extensive benchmarks across both simulated and experimental datasets from single-cell RNA sequencing and mass cytometry data, where distinct shows favourable performance, identifies more differential patterns than competitors, and displays good control of false positive and false discovery rates. distinct is available as a Bioconductor R package.

Funding Statement

This work was supported by Forschungskredit to ST (Grant number FK-19-113) as well as by the Swiss National Science Foundation to MDR (Grants 310030_175841, CRSII5_177208). MDR acknowledges support from the University Research Priority Program Evolution in Action at the University of Zurich.

Acknowledgments

We acknowledge Almut Luetge, Brian D. M. Tom, Christina Azodi, Davis McCarthy, Reinhard Furrer, and the entire Robinson lab for precious comments and suggestions.

ST conceived the method, implemented it, performed all analyses, and wrote the manuscript. ST and MDR designed the study. HLC and LMW contributed to muscat and diffcyt simulation studies, respectively. PS contributed to the computational development of distinct and to the revision process. All authors read, contributed to, and approved the final article.

The authors declare no competing interests.

Corresponding author: Simone Tiberi.

Citation

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Simone Tiberi. Helena L. Crowell. Pantelis Samartsidis. Lukas M. Weber. Mark D. Robinson. "distinct: A novel approach to differential distribution analyses." Ann. Appl. Stat. 17 (2) 1681 - 1700, June 2023. https://doi.org/10.1214/22-AOAS1689

Information

Received: 1 September 2021; Revised: 1 September 2022; Published: June 2023
First available in Project Euclid: 1 May 2023

MathSciNet: MR4582730
zbMATH: 07692400
Digital Object Identifier: 10.1214/22-AOAS1689

Keywords: differential analyses , Differential distribution , differential state , high-throughput single-cell data , permutation tests , single-cell flow and mass cytometry , single-cell RNA-seq

Rights: Copyright © 2023 Institute of Mathematical Statistics

Vol.17 • No. 2 • June 2023
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