Assignment 5

Setup

library(nycflights13)
library(tidyverse)

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Question 1, Join + filter - Which airplanes fly LGA to XNA (1 POINT)

Q1 <- flights %>%
  filter(origin == "LGA" & dest == "XNA") %>%
  inner_join(planes, by = "tailnum") %>%
  select(tailnum, manufacturer, model, origin, dest) %>%
  distinct()

Question 2, join - Add the airline name to the flights table (1 POINT)

flights_with_airlines <- flights %>%
  left_join(airlines, by = "carrier")

Question 3 join + select + distinct() - Which airports have no commercial flights (1 POINT)

no_flights_airports <- airports %>%
  anti_join(flights, by = c("faa" = "dest")) %>%
  select(faa, name) %>%
  distinct()

Extra Credit, (2 POINT2) - NO HELP - NO PARTIAL CREDIT, Create a table with the names of the airports with the most, winds (wind_speed > 30). The table must contain only the airport,name (airports$name) and no duplicate rows

windy_airports <- weather %>%
  filter(wind_speed > 30) %>%
  left_join(airports, by = c("origin" = "faa")) %>%
  select(name) %>%
  distinct()