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Visualizing ’omic feature rankings and log-ratios using Qurro

Open access
Fedarko, Marcus W, Martino, Cameron, Morton, James T, González, Antonio, Rahman, Gibraan, Marotz, Clarisse A, Minich, Jeremiah J, Allen, Eric E, Knight, Rob·2020·NAR Genomics and Bioinformatics

Published version of a preprint

Abstract

Many tools for dealing with compositional ‘ ’omics’ data produce feature-wise values that can be ranked in order to describe features’ associations with some sort of variation. These values include differentials (which describe features’ associations with specified covariates) and feature loadings (which describe features’ associations with variation along a given axis in a biplot). Although prior work has discussed the use of these ‘rankings’ as a starting point for exploring the log-ratios of particularly high- or low-ranked features, such exploratory analyses have previously been done using custom code to visualize feature rankings and the log-ratios of interest. This approach is laborious, prone to errors and raises questions about reproducibility. To address these problems we introduce Qurro, a tool that interactively visualizes a plot of feature rankings (a ‘rank plot’) alongside a plot of selected features’ log-ratios within samples (a ‘sample plot’). Qurro’s interface includes various controls that allow users to select features from along the rank plot to compute a log-ratio; this action updates both the rank plot (through highlighting selected features) and the sample plot (through displaying the current log-ratios of samples). Here, we demonstrate how this unique interface helps users explore feature rankings and log-ratios simply and effectively.

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Research works printed but not linked: 23

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Metadata

Authors
Fedarko, M. W., Martino, C., Morton, J. T., González, A., Rahman, G., Marotz, C. A., Minich, J. J., Allen, E. E., & Knight, R.
Venue
NAR Genomics and Bioinformatics
Published
2020-04-28
Volume
2
Issue
2
Pages
lqaa023-lqaa023
ISSN
2631-9268 (ISSN-L)
OpenAlex
W3022006686
Cited by
161
References
7
FWCI
8.09
Type
journal article
Language
en
Open access
gold
Funders
  • IBM Research AI
  • Joint University Microelectronics Program (GI18518)
  • University of California
  • National Science Foundation (GRFP DGE-1144086)
  • National Institute of Dental and Craniofacial Research (1F31DE028478)

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CoChat. (2026). Citation check: Visualizing ’omic feature rankings and log-ratios using Qurro. https://app.cochat.ai/papers/10.1093/nargab/lqaa023
The paper
Fedarko, M. W., Martino, C., Morton, J. T., González, A., Rahman, G., Marotz, C. A., Minich, J. J., Allen, E. E., & Knight, R. (2020). Visualizing ’omic feature rankings and log-ratios using Qurro. NAR Genomics and Bioinformatics. https://doi.org/10.1093/nargab/lqaa023

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