R 4.4.0 OS X Colleagues I have a sequence like: 1, 3, 4, 5, 7, 8, 12, 13, 14, 15, 20 I would like to display it as: 1, 3-5, 7-8, 12-15, 20 Any simple ways to accomplish this? Dennis Dennis Fisher MD P < (The "P Less Than" Company) Phone / Fax: 1-866-PLessThan (1-866-753-7784) www.PLessThan.com [[alternative HTML version deleted]]