Re: [R] Re ferencing columns and pulling selected data

PDXRugger wrote: > Please consider the following inputs: > PrsnSerialno<-c(735,1147,2019,4131,4131,4217,4629,4822,4822,5979,5979,6128,6128,7004,7004, > 7004,7004,7004,7438,7438,9402,9402,9402,10115,10115,11605,12693,12693,12693) > > PrsnAge<-c(59,48,42,24,24,89,60,43,47,57,56,76,76,66,70,14,7,3,62

Re: [R] Re ferencing columns and pulling selected data

Hi there, It may not be so ellegant, but you can try: PrsnData<-data.frame(cbind(PrsnSerialno,PrsnAge,IsHead)) PrsnData.subset<-subset(PrsnData, PrsnSerialno %in% HhSerialno) PrsnData.subset PrsnData.subset.maxage<-aggregate(PrsnData.subset["PrsnAge"], list(PrsnData.subset$PrsnSerialno), max) Pr