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Response to Neglecting normalization impact in semi-synthetic RNA-seq data simulation generates artificial false positives and Winsorization greatly reduces false positives by popular differential expression methods when analyzing human population samples.
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https://doi.org/10.1186/s13059-024-03232-8Abstract
Two correspondences raised concerns or comments about our analyses regarding exaggerated false positives found by differential expression (DE) methods. Here, we discuss the points they raise and explain why we agree or disagree with these points. We add new analysis to confirm that the Wilcoxon rank-sum test remains the most robust method compared to the other five DE methods (DESeq2, edgeR, limma-voom, dearseq, and NOISeq) in two-condition DE analyses after considering normalization and winsorization, the data preprocessing steps discussed in the two correspondences.
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