LongToWide              Function to transpose the data from long to
                        wide format
bootci_coeff_2trt       Bootstrap function for computing CIs for
                        coefficients for a continuous outcome and two
                        treatment groups
bootci_coeff_3trt       Bootstrap samples to estimate confidence
                        intervals for coefficients for a continuous
                        outcome and three treatment groups.
bootci_coeff_binary     Bootstrap samples to estimate confidence
                        intervals for binary outcome coefficients.
bootci_tvm_3trt         Bootstrap samples to estimate confidence
                        intervals for continuous outcome and three
                        treatment groups.
bootci_tvmb             Bootstrap samples to estimate confidence
                        intervals for the mediation effect for a binary
                        outcome.
coeff                   Function to estimate coefficients at time t
estBootCIs              Bootstrapping samples to estimate mediation
                        effects confidence intervals for continuous
                        outcome and two treatment (exposure) groups.
estCoeff                Function to estimate coefficients at time t.
newMediatorOutcome      Function to compute new Mediator and Outcome
                        using time t and t-1 mean centered on the
                        individual.
smoker                  Wisconsin Smokers' Health Study 2
smoothest               Function to compute local polynomial estimation
                        using rule of thumb for bandwidth selection
tvma                    Time Varying Mediation Function: Continuous
                        Outcome and Two Treatment Groups
tvma_3trt               Time Varying Mediation Function: Continuous
                        Outcome and Three Treatment Groups
tvmb                    Time Varying Mediation Function: Binary Outcome
                        and Two Treatment Groups
tvmcurve_3trt           Main function for time varying mediation
                        function for continuous outcome and three
                        treatment arms (i.e., exposure groups).
