There is a %LET statement in SAS: %let MVAR=population; Thus, MVAR can be used through entire program. In R, I tried MAVR<-c("population"). The problem is that MAVR comes with double quote "...." that I don't need. But MVAR<-c(population) did NOT work out. Any way that double quote can be removed as done in SAS when creating macro_var? Thanks in advance for helps! Amoy
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