Check to see if a value is within a range?

Question

I have a dataset in a data.table format that looks as such:

ID     time.s     time.e
1       1         2
2       1         4
3       2         3         


        

Answer 1

Here's a dplyr option in case anybody stumbles on this question:

library(dplyr)
value = 1
df %>% 
  mutate(ok = value >= time.s & value <= time.e)

  ID time.s time.e    ok
1  1      1      2  TRUE
2  2      1      4  TRUE
3  3      2      3 FALSE
4  4      2      4 FALSE