p value is 0, padj is 0
1
0
Entering edit mode
Wirayatida • 0
@6677b6ad
Last seen 10 hours ago
Japan

I run DESeq2 in R program. However, I got p-value is 0 and padj is 0. I already remove NA data. How can I solve this problem? Do I need to re-calculate the count from the raw data or not?

DESeq2 • 41 views
ADD COMMENT
0
Entering edit mode
@james-w-macdonald-5106
Last seen 51 minutes ago
United States

It is quite possible for a very small p-value to remain very small after multiplicity adjustment. I don't know the cutoff for DESeq2 to report a p-value as zero, but apparently that gene has both an adjusted and unadjusted p below that cutoff.

0
Entering edit mode
> set.seed(1); t.test(rnorm(200,rep(c(0,80),each=100)) ~ rep(0:1,each=100))$p.value 
[1] 0
ADD REPLY

Login before adding your answer.

Traffic: 648 users visited in the last hour
Help About
FAQ
Access RSS
API
Stats

Use of this site constitutes acceptance of our User Agreement and Privacy Policy.

Powered by the version 2.3.6