library(conflicted)
library(dm)
library(tidyverse)
dm <- dm_nycflights13(cycle = TRUE)
dm
dm_deconstruct(dm)
airlines <- pull_tbl(dm, "airlines", keyed = TRUE)
airports <- pull_tbl(dm, "airports", keyed = TRUE)
flights <- pull_tbl(dm, "flights", keyed = TRUE)
planes <- pull_tbl(dm, "planes", keyed = TRUE)
weather <- pull_tbl(dm, "weather", keyed = TRUE)
dm(airlines, airports, flights, planes, weather)
by_origin <-
flights %>%
group_by(origin) %>%
summarize(n = n(), mean_arr_delay = mean(arr_delay)) %>%
ungroup()
dm(airlines, airports, flights, planes, weather, by_origin) %>%
dm_draw()
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