Possible Duplicate:
How to sort a dataframe by column(s) in R
I am trying to sort a data.frame by several columns
df<-data.frame("Sp1"=c(7,4,2),"Sp2"=c(6,2,1))
row.names(df)<-c("A01","A02","A03")
Sp1 Sp2
A01 7 6
A02 4 2
A03 2 1
#I am using
df[with(df, order("Sp1"))]
however this does nothing. Any ideas why? Thanks