R/fit_mechanisms.R
    est_Hn.RdEstimate Auxiliary Covariate of Full Data Efficient Influence Function
est_Hn(gn_exp, gps_bound)An estimate of the exposure density (a generalized propensity
score) using the output provided by est_g_exp.
numeric giving the lower limit of the generalized
propensity score estimates to be tolerated (default = 0.05). Estimates less
than this are truncated to this or 1/n. See bound_propensity
for details.
A data.table with two columns, containing estimates of the
 auxiliary covariate at the natural value of the exposure H(A, W) and at the
 shifted value of the exposure H(A + delta, W).
Compute an estimate of the auxiliary covariate of the efficient influence function required to update initial estimates through logistic tilting models for targeted minimum loss estimation.