search for: tp1745398p1745398

...hile a[[1:3]] gives null?! If anyone could help with an explanation of indexing rules, or a source that does so, I would very much appreciate it. Oh and an answer to the first question! Thanks All Jason -- View this message in context: http://n4.nabble.com/list-index-rules-evaluation-behavior-tp1745398p1745398.html Sent from the R help mailing list archive at Nabble.com.