Bioinformatics Asked on May 10, 2021
After I got dds from my count matrix by DESeq(), I use results() method to get Padj and log2 fold changes for volcano plotting,
then I found some gene’s Padj values are infinite and the P-value is very close to 0;
this makes those dots on my volcano plotting located very top to Y-aix and also confused me:
table 1 is dds results, -log10(padj) show inf;
table 2 is count matrix from featureCount
table 3 is size factor of samples
Please help me !
Correct answer by Devon Ryan on May 10, 2021
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