ALT Promotional image featuring Maelle Salmon, keynote speaker at useR!2024.
ALT A diagram showing a data model with keys on the left, individual tables on the right, and bidirectional red arrows between the two.
ALT R code with output: library(dm) dm_draw(dm_pixarfilms()) single_tibble_dm <- dm_pixarfilms() %>% dm_wrap_tbl(root = pixar_people) single_tibble_dm$pixar_people
ALT A visual representation of the data model.
ALT R code with output: library(dm) pixar_dm <- dm_pixarfilms() family_favs <- tibble::tribble(~family_member, ~film, "Dad", "Shrek", "Mom", "A Bug's Life", "Kiddo", "Toy story") new_dm <- pixar_dm |> dm_add_tbl(family_favs) |> dm_add_pk(family_favs, family_member) |> dm_add_fk(family_favs, film, pixar_films) dm_draw(new_dm)
ALT Visual representation of the resulting data model.
ALT R code with output: library(dm); my_remote_dm <- dm_financial(); my_remote_dm; my_local_dm <- my_remote_dm %>% collect(); my_local_dm
ALT R code with output: library(dm); library(nycflights13); check_key(airports, faa); check_key(weather, c(origin, time_hour)); check_key(planes, tailnum); check_key(planes, year); check_subset(flights, origin, airports, faa); check_subset(flights, dest, airports, faa)
ALT ALT text: R code with output: library(dm); my_dm <- dm_nycflights13(); my_dm; my_dm %>% dm_draw()
ALT A visual representation of the output of the nycflights13 data model: tables as boxes with column names inside, relationships as arrows between the column names.
ALT library(dm); my_dm <- dm_nycflights13(); length(my_dm); names(my_dm); my_dm$airports
