Turn deciles into variables

I am currently looking at some data that I am using for a logit. I have the logit working just fine, however, I am being asked to break out the data into deciles and then potentially do things with those. To that end, I imagine I need to turn the deciles I create into variables (e.g., decile 1, decile 2...). My question is, how can I turn the deciles I create into variables that I can then do something with?

I've tried Googling but I can only get how to break things down into quantiles using quantile(x, probs = seq (0,1,1/10)) function and also using dplyr. I can get the deciles just fine, but I can't find anything on how to turn those into anything useful.

Thanks in advance!

ntile will give you most of what you want, but it will return a numeric result.

I gather you would like to use the decile as a categorical variable in a model, so you might want to create a factor varaible instead.

library(tidyverse)

x <- runif(30)

xf <- x %>%
  ntile(10) %>%
  paste0("decile", .) %>%
  as.factor() %>%
  reorder(parse_number(as.character(.)))

print(xf)
#>  [1] decile4  decile3  decile6  decile9  decile7  decile5  decile7  decile10
#>  [9] decile1  decile3  decile2  decile4  decile8  decile10 decile10 decile9 
#> [17] decile6  decile2  decile6  decile8  decile5  decile4  decile9  decile5 
#> [25] decile8  decile7  decile2  decile1  decile1  decile3 
#> attr(,"scores")
#>  decile1 decile10  decile2  decile3  decile4  decile5  decile6  decile7 
#>        1       10        2        3        4        5        6        7 
#>  decile8  decile9 
#>        8        9 
#> 10 Levels: decile1 decile2 decile3 decile4 decile5 decile6 decile7 ... decile10

^{Created on 2023-02-13 with reprex v2.0.2}