Creates an example
dm object from the tables in nycflights13,
along with the references.
See nycflights13::flights for a description of the data.
As described in nycflights13::planes, the relationship
flights table and the
planes tables is "weak", it does not satisfy
data integrity constraints.
dm_nycflights13(cycle = FALSE, color = TRUE, subset = TRUE)
dm object consisting of nycflights13 tables, complete with primary and foreign keys and optionally colored.
dm_nycflights13() %>% dm_draw()