Question

When coding in R Studio

install.packages("hflights")
library(hflights)

if filter for flights >= 3000 miles how many flights in new dataframe

Answer 1

# All flights that traveled 3000 miles or more
filter(hflights, Distance >= 3000)
## # A tibble: 527 x 23
##     Year Month DayofMonth DayOfWeek DepTime ArrTime UniqueCarrier
##    <int> <int>      <int>     <int>   <int>   <int> <chr>        
##  1  2011     1         31         1     924    1413 CO           
##  2  2011     1         30         7     925    1410 CO           
##  3  2011     1         29         6    1045    1445 CO           
##  4  2011     1         28         5    1516    1916 CO           
##  5  2011     1         27         4     950    1344 CO           
##  6  2011     1         26         3     944    1350 CO           
##  7  2011     1         25         2     924    1337 CO           
##  8  2011     1         24         1    1144    1605 CO           
##  9  2011     1         23         7     926    1335 CO           
## 10  2011     1         22         6     942    1340 CO           
## # ... with 517 more rows, and 16 more variables: FlightNum <int>,
## #   TailNum <chr>, ActualElapsedTime <int>, AirTime <int>, ArrDelay <int>,
## #   DepDelay <int>, Origin <chr>, Dest <chr>, Distance <int>,
## #   TaxiIn <int>, TaxiOut <int>, Cancelled <int>, CancellationCode <chr>,
## #   Diverted <int>, Carrier <chr>, Code <chr>

If we apply filter on distance then we are getting 527 flights those traveled 3000 miles or more.