[R] Adding noise

Ben Bolker bbolker at gmail.com
Tue Nov 30 22:31:15 CET 2010

Jim Silverton <jim.silverton <at> gmail.com> writes:

> Hello,
> I have some discrete pvalues and I would like to sort them. Then add random
> noise so that they are ordered the same way as the original pvalues. Off
> course I don't want any pvalues less than 0 or greater than 1. Any ideas on
> how to do this in R?

  Are you basically just trying to break ties?

  Something like (completely untested)

eps <- min(diff(c(0,sort(pvaluevector),1)))/2

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