Attributes of a dataframe

["Treacy, Glenn" <Glenn.Treacy@ILIM.COM>]

I am using attributes to tag a dataset with meta information. I find that if restrict the columns of my dataset by a command such as

jj.df<-jj.df[,-c(2,6,8)] or jj.df<-jj.df[,c(8,7,9,10)]

that the attributes I set originally are dropped. Can anyone explain why that is and whether I can stop it happening?

Regards and thank you in advance,
Glenn

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