Remove levels
Hi, Without more information I guess your problem is that the level name still exists in the factor whereas it doesn't appear anymore in the factor. If so, try droplevels. Alain Guillet
On 13/06/13 14:02, Shane Carey wrote:
I have a dataframe consisting of factors in one column. Im trying to remove certain levels using the following code: toBeRemoved1<-which(DATA$UnitName_1=="lake") DATA<-DATA[-toBeRemoved1,] However it will not remove the level "lake" In the past this worked for me, but its not working now. Any help appreciated. Thanks
Alain Guillet Statistician and Computer Scientist SMCS - IMMAQ - Universit? catholique de Louvain http://www.uclouvain.be/smcs Bureau c.316 Voie du Roman Pays, 20 (bte L1.04.01) B-1348 Louvain-la-Neuve Belgium tel: +32 10 47 30 50 Acc?s: http://www.uclouvain.be/323631.html