Arguments

match.data() takes the following inputs:

1. object is the output object from matchit(). This is a required input.
2. group specifies for which matched group the user wants to extract the data. Available options are "all" (all matched units), "treat" (matched units in the treatment group), and "control" (matched units in the control group). The default is "all".
3. distance specifies the variable name used to store the distance measure. The default is "distance".
4. weights specifies the variable name used to store the resulting weights from matching. The default is "weights". See Section  for more details on the weights.
5. subclass specifies the variable name used to store the subclass indicator. The default is "subclass".