search for: in0019800021

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tapply changing order of factor levels?
2009 May 06
4
tapply changing order of factor levels?
Hi, Does tapply change the order when applied on a factor? Below is the code I tried. > mylevels<-c("IN0020020155","IN0019800021","IN0020020064") > mydata<-c("IN0020020155","IN0019800021","IN0020020064","IN0020020155","IN0019800021","IN0019800021","IN0020020064","IN0020020064","IN0019800021") > myfactor<-facto...