R Convert Variable of data.table to Vector by Its Index Position (Example Code)
In this tutorial you’ll learn how to convert a data.table variable to a vector in R programming.
Setting up the Example
install.packages("data.table") # Install & load data.table package library("data.table") |
install.packages("data.table") # Install & load data.table package library("data.table")
my_tab <- data.table(x = c(1, 7, 4), # Our example data y = c(5, 4, 9), z = 3:1) my_tab # Returning data.table to console # x y z # 1: 1 5 3 # 2: 7 4 2 # 3: 4 9 1 |
my_tab <- data.table(x = c(1, 7, 4), # Our example data y = c(5, 4, 9), z = 3:1) my_tab # Returning data.table to console # x y z # 1: 1 5 3 # 2: 7 4 2 # 3: 4 9 1
Example: Extracting data.table column as Vector
tab_vec <- my_tab[[3]] # Converting to vector tab_vec # Printing vector # 3 2 1 |
tab_vec <- my_tab[[3]] # Converting to vector tab_vec # Printing vector # 3 2 1