On Mon, Jul 28, 2014 at 12:41 PM, Chris Fage <cdfage@gmail.com> wrote:
Can anyone please direct me to a literature reference describing the maximum likelihood method for detection of twinning based on twin laws, as implemented in phenix.xtriage?

If you mean the twin fraction estimation, the code doesn't have anything more helpful than this:

Zwart, Read, Grosse-Kunstleve & Adams, to be published

-Nat