ROI                     Compute the ROI surfaces given test and vaccine
                        cost fractions.
ROIcoeffs               Compute the Return on Investment (ROI) surface
                        coefficients from population probabilities
build.project           Creates an ROI estimation project.
denvax                  denvax: Simple Dengue Test and Vaccinate Cost
                        Thresholds
lazou2016               The serosurvey data in L'Azou 2016
morrison2010            The serosurvey data in Morrison 2010
nPxA                    Compute the nPx(A), C(A) proportions from a
                        population of life histories
serofit                 Model fitting for serological data
synthetic.pop           Compute synthetic population trajectories from
                        model parameters
