In this method, M2
corresponds to the number of times a treat1 unit can be
matched with a treat2 unit. The M1
parameter corresponds to the number of
times a treat1 unit can be used in total.
OneToN(tmatch, M1 = 2, M2 = 1, ...)
initial results from trimatch
that contains all
possible matches within the specified caliper.
a scaler indicating the number of unique subjects in group one to retain. This applies only to the first group in the matching order.
a scaler indicating the number of unique matches to retain. This applies to the first two groups in the matching order.
currently unused.