Add a index Row number column to dataframe

0 votes
My dataset has only business related fields, but no index or row number, I want to add a index column, how to acheive this?
Aug 7, 2019 in Data Analytics by bharath
 • 4,588 views

1 answer to this question.

0 votes

Hi, Bharath.

You can add index using seq(1:nrow(data frame)).

Example - 

mtcars %>% mutate(Id = seq(1:nrow(mtcars)))
matcars_new = mtcars %>% mutate(Id = seq(1:nrow(mtcars)))
answered Sep 10, 2019 by Cherukuri
 • 33,030 points

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