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fet2
2011 Dec 08
1
partial duplicates of dataframe rows, indexing and removal
Hello. I am trying to remove from my dataframe, those rows in which the first
7 columns are duplicated even if subsequent columns make those rows unique.
df<-data.frame(id=rep(c('amy','bob','joe') , each=5),
pet1=sample(LETTERS[1:3],15, replace=T),
pet2=sample(LETTERS[1:3],15, replace=T),
pet3=sample(LETTERS[1:5],15, replace=T))
>df
id pet1 pet2 pet3
1 amy C B A
2 amy B A A
3 amy A A D
4 amy B C A
5 amy C B B
6 bob B A A
7 bob C A C
8 bob C C A
9 bob...