Fig. 2From: Semi-automated approaches to optimize deep brain stimulation parameters in Parkinson’s diseaseExample of the probit model inferring a GP from a set of preference data. Five evaluated inputs, f(x), selected from a one-dimensional input space, x. Four comparisons are made between two evaluated inputs and are listed in the top left. Preference for an input is noted by being on the left side of the arrow, with the input it was compared to on the right of the arrowBack to article page