tmdm: Function to fit the transitional missing data model and...
In isni: Index of Local Sensitivity to Nonignorability

Fit missing data model and obtain predicted probabilities of being observed for all observations.

1	tmdm(formula, data, weights, subset)

`formula`	a formula to specify a multinomial transitional missing data model in the form of g+gp ~Sterms.
`data`	the name of the dataset for fitting missing data mechansim model
`weights`	an optional vector of "prior weights" to be used in the fitting process for the missingness mechanism model. Should be NULL or a numeric vector.
`subset`	an optional vector specifying a subset of observations to be used in the fitting process for the outcome model and the missingness mechanism model.