Hi My R version is the current version as at 15 Nov 2013.
I have tried to calculate range using tapply() with FUN=range. tapply() returns two fields, the ID field and a field of two text items one is the maximum and the other is the minimum. I take as the difference max - min, does R use a different term for range in tapply? I have also tried aggregate() with Fun=range, with Fun=min and FUN=max and they also gave problems. What is the best route to calculate ranges for groups within a data frame. Thanks. Scriptham. -- View this message in context: http://r.789695.n4.nabble.com/Calculate-Range-tp4680579.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
