| smoothest {tvmediation} | R Documentation |
Function to compute local polynomial estimation using rule of thumb for bandwidth selection
Description
Part of the set of internal functions called within the tvma function to assist
in the estimation of the time varying mediation effect.
Usage
smoothest(t.seq, t.coeff, t.est, deltat)
Arguments
t.seq |
a vector of time points at each observation |
t.coeff |
estimated coefficients |
t.est |
time points at which to make the estimation |
deltat |
a small constant which controls the time-lag of the effect of the mediator on the outcome, half the time between two time points |
Value
bw_alpha |
a number computed via Fan and Gijbels' (1996) rule of thumb for bandwidth selector for alpha coefficient. |
bw_gamma |
a number computed via Fan and Gijbels' (1996) rule of thumb for bandwidth selector for gamma coefficient. |
bw_beta |
a number computed via Fan and Gijbels' (1996) rule of thumb for bandwidth selector for beta coefficient. |
bw_beta |
a number computed via Fan and Gijbels' (1996) rule of thumb for bandwidth selector for tau coefficient. |
hat.alpha |
estimated treatment effect on mediator |
hat.gamma |
estimated treatment effect on outcome, adjusted for mediator |
hat.beta |
estimated mediator effect on outcome |
hat.tau |
estimated treatment effect on outcome, not adjusting for mediator |
est.M |
estimated mediation effect, product of hat.alpha and hat.beta |