Suppose you have the following data frame:
data avg_points = c(102, 104, 96, 97)) data # team avg_points #1 Spurs 102 #2 Lakers 104 #3 Pistons 96 #4 Mavs 97
In order to add an index column to give each row in this data frame a unique numeric ID, you can use the following code:
#add index column to data frame data$index
Another way to add a unique ID to each row in the data frame is by using the tibble::rowid_to_column function from the tidyverse package:
#load tidyverse package library(tidyverse) #create data frame data #add index column to data frame data
Notice that both techniques produce the same result: a new column that gives each row in the data frame a unique ID.