Hi All, I have data in for following format:L 1st column is userid and the second column onward are class ids for various products. I want to save this in Libsvm format and an intermediate step is to sort (in ascending manner) the class ids. For example: I/Puid1 1243 3580 2670 122 2593 1782 1526uid2 121 285 2447 1516 343 385 1200 912 1430 5824 1451 8931 1271 1088 2584 1664 5481 Desired O/P:uid1 122 1243 1526 1782 2593 2670 3580 uid2 121 285 343 385 912 1088 1200 1271 1430 1451 1516 1664 2447 2584 5481 5824 8931 Can someone please point me in the right direction. How do I project if I use val data = sc.textFile(..)How do I project column 1 to end (not including column 0) and then sort these projected columns.