hspace*{fill}
        text {$O(Rmid vec{x} ,vec{q} $ = $cfrac{P(R=1mid vec{x},vec{q})}{P(R=0mid vec{x},vec{q})}$ = $cfrag{cfrag{P(R=1mid vec{q})P(vec{x} mid R=1, vec{q})}{P(vec{x} mid vec{q})}   }{3}$}
hspace*{fill}