search for: 280747

Displaying 1 result from an estimated 1 matches for "280747".

Did you mean: 28047
2004 Jan 23
5
Levels number of a factor object
Hi all! How to retrieve the levels number of a factor object? See this code: groups<-gl(4,10) I want to retrieve the number of levels (4) of my object "groups" I tried groups.levels but this don't work Thanks Laurent Houdusse Analyste Programmeur