# looping in R using stata data

I would like to make a loop with the below codes.

library(foreign) library(frontier) d10<- read.dta("manu1_10.dta") require(plm) manu1_10<-plm.data(d1, c("id","year")) re2_10<-sfa(log(y3) ~ log(x1) + log(x2), data=manu1_10, timeEffect=TRUE) summary(re2_10) efficiencies(re2_10) d11<- read.dta("manu1_11.dta") require(plm) manu1_11<-plm.data(d2, c("id","year")) re2_11<-sfa(log(y3) ~ log(x1) + log(x2), data=manu1_11, timeEffect=TRUE) summary(re2_11) efficiencies(re2_11) d12<- read.dta("manu1_12.dta") require(plm) manu1_12<-plm.data(d3, c("id","year")) re2_12<-sfa(log(y3) ~ log(x1) + log(x2), data=manu1_12, timeEffect=TRUE) summary(re2_12) efficiencies(re2_12) d13<- read.dta("manu1_13.dta") require(plm) manu1_13<-plm.data(d4, c("id","year")) re2_13<-sfa(log(y3) ~ log(x1) + log(x2), data=manu1_13, timeEffect=TRUE) summary(re2_13) efficiencies(re1_13)

Due to "", it is not easy to make a loop. Please let me know how to do it. Thank you.