A vectorized alternative to rep(`each=`) in R

Question

I get a warning message in rep() that says each= argument is not vectorized.

Is there a vectorized alternative to rep() perhaps in tidyverse() or other base R alternative?

n_study <- 5
n_per_study_rows <- c(3,5,3,3,2)
rep(1:n_study, each=n_per_study_rows)

Warning message: first element used of 'each' argument

Answer 1

Use the times argument, not the each argument:

n_study <- 5
n_per_study_rows <- c(3,5,3,3,2)
rep(1:n_study, times=n_per_study_rows)
#>  [1] 1 1 1 2 2 2 2 2 3 3 3 4 4 4 5 5

^{Created on 2021-10-25 by the reprex package (v2.0.0)}