[R] if block and brackets

[Fred J.]

Hello
the maunal states "When the if statement is not in a
block the else, if present, must appear on the same
line as statement1. Otherwise the new line at the end
of statement1 yields a syntactically complete
statement that is evaluated."
well, what is wrong with this if structure? I am
getting an error on the line where "else" is

thanks

  if (exists("f")){
    dt <- read.csv(file.path(d,f),header=F)#data frame
    builddl(dt,f)
  else
    for (i in dir(d)){
      dt <-
read.csv(file.path("c:/data",i),header=F)#data frame
      an <- sub("([^.]+)(\\..+)","\\1", i))
    builddl(dt,an)
  }
}