psss error psss error in plot which data set does r use to perform a propensity score match psss error in plot where are the binary variables in psss can i insert a pss variable in a dataset in r where do i insert a binary spss what is propensity score analysis when insert a random variable, it shows how to insert propensity score do you need to insert a binary variable in a propensity score what variable in r should be used to calculate spss propensity score how to do propensity score matching psss missing xlim what is psss response which r program can use a probability variable r how to insert propensity score psss error insertion missing xlim psss missing value in dataset which r program performs psmatching