  High energy neutrinos have been detected by IceCube, but their origin remains
a mystery. Determining the sources of this flux is a crucial first step towards
multi-messenger studies. In this work we systematically compare two classes of
sources with the data: Galactic and extragalactic. We assume that the neutrino
sources are distributed according to a class of Galactic models. We build a
likelihood function on an event by event basis including energy, event
topology, absorption, and direction information. We present the probability
that each high energy event with deposited energy $E_{\rm dep}>60$ TeV in the
HESE sample is Galactic, extragalactic, or background. For Galactic models
considered the Galactic fraction of the astrophysical flux has a best fit value
of $1.3\%$ and is $<9.5\%$ at 90\% CL. A zero Galactic flux is allowed at
$<1\sigma$.
