Return row number
Returns row number. This function is designed to work inside of mutate.()
row_number.()
test_df <- data.table(x = rep(1, 3), y = c("a", "a", "b"))
test_df %>%
mutate.(row = row_number.())
# The dplyr version `row_number()` also works
test_df %>%
mutate.(row = row_number())Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.