Multiple test corrections are a fundamental step in the analysis of differentially expressed genes, as the number of tests performed would otherwise inflate the false discovery rate. Recent methods for p-value correction involve a regression model in order to include covariates that are informative of the power of the test. Prog-Plot (progressive proportions plot) is a visual tool to identify the functional relationship between the covariate and the proportion of p-values consistent with the null hypothesis. The relationship between the proportion of p-values and the covariate to be included is needed, but there are no available tools to verify it. The here presented approach aims at having an objective way to specify regression models instead of relying on prior knowledge.
Prog-Plot: a visual method to determine functional relationships for FDR regression methods
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Nicolás Bello, Liliana López-Kleine; Prog-Plot: a visual method to determine functional relationships for FDR regression methods. J Cell Sci 2022; jcs.260312. doi: https://doi.org/10.1242/jcs.260312
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