R dplyr join on range of dates

Question

I want to join two tables xxx and yyy using a composite unique key and date ranges. In sql I would simply specify in the join but I cannot get

Answer 1

First of all, thank you for trying to help me. I realize my question is incomplete. I moved away from fuzzyjoin because of all the bioconductor dependencies.

I used sqldf instead to accomplish the task:

library(sqldf)
sqldf("SELECT * FROM xxx
            LEFT JOIN yyy
            ON  xxx.ID  = yyy.ID
            AND xxx.NRA = yyy.NRA
            AND yyy.date BETWEEN xxx.date_low AND xxx.date_high")

The result is almost identical to this question but I suspect it can also be solved with that question as per Uwe's data.table solution.

I am also linking this rstudio response

Answer 2

We could use fuzzy_inner_join from fuzzy_join

library(fuzzy_join)
fuzzy_inner_join(xxx, yyy,
              by = c("ID" = "ID",
                           "NRA"="NRA",
                           "date_low" =  "date",
                           "date_high" = "date"), 
              match_fun = list("==", "==", ">", "<"))