| checkU {ivmte} | R Documentation |
Check polynomial form of the u-term
Description
This function ensures that the unobservable term enters into the MTR in the correct manner. That is, it enters as a polynomial.
Usage
checkU(formula, uname)
Arguments
formula |
a formula. |
uname |
name of the unobserved variable. |
Value
If the unobservable term is entered correctly into the
formula, then NULL is returned. Otherwise, the vector of
incorrect terms is returned.
[Package ivmte version 1.4.0 Index]