Loop over string variables in R

Question

When programming in Stata I often find myself using the loop index in the programming. For example, I\'ll loop over a list of the variables nominalprice and realprice:

Answer 1

As other people have intimated, this would be easier if you had a dataframe with columns named nominalprice and realprice. If you do not, you could always use get. You shouldn't need parse at all here.

clist <- c("nominalprice", "realprice")
for (i in clist) {
   png(paste("c:/TimePlot-",i,".png"), sep="")
   plot(time, get(i))
   dev.off() 
}