matcdatamult: A sample dataset representing matched case control data. Similar to matcdata except with multiple
stratification/instrumental/miscellaneous variables.
Description
An example data set with 1 binary response (y), 2 stratification variable (sv1 and sv2),
1 mismeasured binary exposure (w), 2 prognostic factors (z1 and z2),
and 2 instruments (xs1 and xs2) for use with the meivm3 or meivm4 functions.