CODEWITHSUNDEEP
rdataframerow
garrett
garrett

Reputation: 207

Deleting a data frame row by row's named number in R

I understand that you can delete a row by using a negative index.

e <- data.frame(x=seq(1,5,1), y=seq(1,5,1))

e
  x y
1 1 1
2 2 2
3 3 3
4 4 4 
5 5 5

e <- e[-3,]

e
  x y
1 1 1
2 2 2
4 4 4
5 5 5

But now I want to delete the row that is numbered 4.

e <- e[-4,]

e
  x y
1 1 1
2 2 2
4 4 4

It instead deleted the row that was numbered 5 (but, I guess, indexed at 4).

How can I delete the row "named" #5 even if it is in a different numbered index?

Upvotes: 2

Views: 7756

Answers (1)

Arun
Arun

Reputation: 118779

Try 

e[rownames(e) != "4", ]

(or) for multiple entries 

e[!rownames(e) %in% c("3", "4"), ]

Upvotes: 7

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