Filter by ranges supplied by two vectors, without a join operation

Question

I wish to do exactly this: Take dates from one dataframe and filter data in another dataframe - R

except without joining, as I am afraid that after I join my data th

Answer 1

Maybe you could borrow the inrange function from data.table, which

checks whether each value in x is in between any of the intervals provided in lower,upper.

Usage:

inrange(x, lower, upper, incbounds=TRUE)

library(dplyr); library(data.table)

tmp_df %>% filter(inrange(a, c(2,4), c(2,5)))
#  a
#1 2
#2 4
#3 5