Hello,
I have been using MatchIt for a project and have some categorical
covariates. (I know that continuous covariates are optimal, but
unfortunately we only have categorical for some of our data). I have
already coded them so that the categories are numeric.
When I perform the matching and ask for the summary, sometimes it gives
balance measures for all of the levels of the categorical variable and
other times it does not. For example, my variable Class Standing is 4
levels and I get balance measures for all 4 levels, but my variable Current
GPA is 4 levels and I only get balance measures for the second, third, and
fourth level of the variable.
Is there a way to correct this?
Thank you,
Maureen Bowers
