[BioC] P-values to Z-scores

Francois Pepin francois at sus.mcgill.ca
Tue Mar 9 18:03:53 CET 2010

Hi Paul,

qnorm is what you're looking for.

Keep in mind that you need to fiddle with it a little bit if you have p-values from 2-sided tests, depending on what you want the z-scores for. For example, you'd lose the direction entirely.


On Mar 9, 2010, at 8:52 AM, Paul Geeleher wrote:

> Hi,
> Does anybody know if there is a function in R/bioconductor to convert
> p-values to z-scores? It seems alot more difficult to find that I
> would have thought!
> Paul
> -- 
> Paul Geeleher
> School of Mathematics, Statistics and Applied Mathematics
> National University of Ireland
> Galway
> Ireland
> --
> www.bioinformaticstutorials.com
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