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Hi, I have the file below called happyguys. It is a subset of data. How do I apply the weight variable (WTPP) to this file? Can i just multiply each column (except the first column because it is a record id) by WTPP? If the answer is yes, how do I multiply one variable name by another? Thanks, Nat PROV REGION GRADE Y_Q10A WTPP 83 48 4 7 2 342233324020 115

...do i then calculate the frequencies of smokers (1) versus non-smokers (2) after having weighted my file? or even the process that SPSS is going through to aggregate the data? Thanks, Nat Here is my code: myfile<-("c:/test2.txt") mysubset<-myfile mysubset$Y_Q02 <-mysubset$DVSELF <-NULL mysubset2<-mysubset mysubset2$Y_Q10B <-mysubset2$GP2_07 <-NULL myVariableNames<-c("PUMFID","PROV","REGION","GRADE","Y_Q10A","WTPP") myVariableWidths<-c(5,2,1,2,1,12.4) mysubset2<-read.fwf( file=myfile, widt...