dose_resp               Extract the information from the simulation
                        data frame to analyse the dose response effects
dose_resp_ind           Extract the information from the simulation
                        data frame to analyse the dose response effects
expose_data             Multiple quemicals and several epidemiological
                        outcomes
gen                     One of the intermediate data frame
general_function        General function create the basic structure for
                        the analysis
ice                     Extract the information from the simulation
                        data frame to analyse the individual
                        conditional expectation
interact                Extract the information from the simulation
                        data frame to analyse the interaction effects
naive_ace               Extract the information from the simulation
                        data frame to analyse the naive causal effects
naive_ace_ind           Extract the information from the simulation
                        data frame to analyse the interaction effects
run_simulations         This function run all the simulations based on
                        the structure of the basic data frame.
simu                    One of the intermediate data frame
