Correction of the help page for ivglm:
h_i(\psi)=\textrm{expit}\{\hat{E}(Y|L_i,Z_i,X_i)-m^T(L_i)\psi X_i\}
replaced by
h_i(\psi)=\textrm{expit}[\textrm{logit}\{\hat{E}(Y|L_i,Z_i,X_i)\}-m^T(L_i)\psi X_i].
Less internal calls to coxph.detail in stdCoxph,
which makes the function slightly faster.
Replaced class(fit)=="name" with
inherits(x=fit, what="name") in places, which should be safer.
Minor changes in the internal handling of formula arguments,
to avoid errors if formulas are given implicitly to models,
e.g. f <- y~x, fit <- glm(formula=f)