Re: [R] Reordering levels of a factor when the factor is part of a data frame

6-02-2012, 11:03 (-0800); Judith Flores escriu: > The name of the column will be saved in an object called: > > variab > > the data frame is called df. > > > If I try to the do following: > > df[variab]<-factor(df[variab], levels=c("A2B","B31","C33")) > > it won't work because df[variab] is

Re: [R] Reordering levels of a factor when the factor is part of a data frame

Hi Judith, You should use double brackets, like this: df[[variab]]<-factor(df[[variab]], levels=c("A2B","B31","C33")) see ?"[" for details, noting that the help page assumes that you know data.frames are list-like objects. Best, Ista On Mon, Feb 6, 2012 at 2:03 PM, Judith Flores wrote: > Hell