Functions to calculate the NRI & IDI, difference in AUC & visualize the results
choice( varargin )
function [ choice_out ] = choice( varargin )
% Combines choice vectors so as to enable the selecting out of a specific group of patients.
% varargin: vectors of 1s and 0s indicating the preferences
% There is probably a more efficient way of doing this, but, hey, it works.