Dear lists
I am using both MatchIt and Zelig to perform propensity score and post hoc
analyses. It appears, particularly with zelig, that the only way I can
specify an equation is to first attach the dataset to the environment. The
unfortunate consequence of doing this is that some variables in the dataset
are masked and inaccessible.. I have tried running this program using with (
{} ) and by prepending the dataset name to the variables in my equations,
but each of these strategies cause other errors (e.g., variables not being
found, or confusion between the dataset name and the variable name). So my
question is hether there are other alternatives that could be used in lieu
of attach() or ways of avoiding variable masking.
Thanks in advance
Barth
