Examples of calls of the mtf.lookup function > sym.table <- c("FRED","MARY","GEORGE","PAUL","ALBERT","HANNA") > mtf.lookup("PAUL") [1] 4 > sym.table [1] "PAUL" "FRED" "MARY" "GEORGE" "ALBERT" "HANNA" > sym.table <- 1:10 > mtf.lookup(7) [1] 7 > sym.table [1] 7 1 2 3 4 5 6 8 9 10