I'm quite new to this - and would appreciate some help getting started... I am looking to feed data from dataframe A, one line at a time into an input frame to the program, and then save the output into a different dataframe. input frame - one column: ABCDEFTATF AHFUTJRAUUFS TITIAJFSUDFJA TIDUSHANM program accepts input into frame "s" one line at a time: ABCDEFTATF program outputs: [[1]] [1] "..()((..))" [[2]] [1] -15.3 Ideally, I would like to collect the output as two columns into a separate frame, e.g. "r": ..()((..)) -15.3 ..()((..)) -14.4 ..()((..)) -11.6 ..()((..)) -17.7 Any help to get going on this would be very welcome... Thanks. -- View this message in context: http://r.789695.n4.nabble.com/Looping-input-and-multiple-outputs-tp2223539p2223539.html Sent from the R help mailing list archive at Nabble.com.