Data Overview

Data summary
Name flights
Number of rows 336776
Number of columns 19
_______________________
Column type frequency:
character 4
numeric 14
POSIXct 1
________________________
Group variables None

Variable type: character

skim_variable n_missing complete_rate min max empty n_unique whitespace
carrier 0 1.00 2 2 0 16 0
tailnum 2512 0.99 5 6 0 4043 0
origin 0 1.00 3 3 0 3 0
dest 0 1.00 3 3 0 105 0

Variable type: numeric

skim_variable n_missing complete_rate mean sd p0 p25 p50 p75 p100 hist
year 0 1.00 2013.00 0.00 2013 2013 2013 2013 2013 ▁▁▇▁▁
month 0 1.00 6.55 3.41 1 4 7 10 12 ▇▆▆▆▇
day 0 1.00 15.71 8.77 1 8 16 23 31 ▇▇▇▇▆
dep_time 8255 0.98 1349.11 488.28 1 907 1401 1744 2400 ▁▇▆▇▃
sched_dep_time 0 1.00 1344.25 467.34 106 906 1359 1729 2359 ▁▇▇▇▃
dep_delay 8255 0.98 12.64 40.21 -43 -5 -2 11 1301 ▇▁▁▁▁
arr_time 8713 0.97 1502.05 533.26 1 1104 1535 1940 2400 ▁▃▇▇▇
sched_arr_time 0 1.00 1536.38 497.46 1 1124 1556 1945 2359 ▁▃▇▇▇
arr_delay 9430 0.97 6.90 44.63 -86 -17 -5 14 1272 ▇▁▁▁▁
flight 0 1.00 1971.92 1632.47 1 553 1496 3465 8500 ▇▃▃▁▁
air_time 9430 0.97 150.69 93.69 20 82 129 192 695 ▇▂▂▁▁
distance 0 1.00 1039.91 733.23 17 502 872 1389 4983 ▇▃▂▁▁
hour 0 1.00 13.18 4.66 1 9 13 17 23 ▁▇▇▇▅
minute 0 1.00 26.23 19.30 0 8 29 44 59 ▇▃▆▃▅

Variable type: POSIXct

skim_variable n_missing complete_rate min max median n_unique
time_hour 0 1 2013-01-01 05:00:00 2013-12-31 23:00:00 2013-07-03 10:00:00 6936

Summary of Changes from Previous Version

## Differences found between the objects!
## 
## Summary of BASE and COMPARE
##   ==================================================================
##     PROPERTY             BASE                       COMP            
##   ------------------------------------------------------------------
##       Name             df_input                 df_input_old        
##      Class     "tbl_df, tbl, data.frame"  "tbl_df, tbl, data.frame" 
##     Rows(#)             336776                     336776           
##    Columns(#)             19                         19             
##   ------------------------------------------------------------------
## 
## 
## Not all Values Compared Equal
## First 10 of 18 rows are shown in table below
##   ===================================
##       Variable     No of Differences 
##   -----------------------------------
##        month            308639       
##         day             325828       
##       dep_time          336248       
##    sched_dep_time       335118       
##      dep_delay          324195       
##       arr_time          336299       
##    sched_arr_time       336309       
##      arr_delay          332538       
##       carrier           294014       
##        flight           336520       
##   -----------------------------------
## 
## 
## First 10 of 308639 rows are shown in table below
##   ========================================
##    VARIABLE  ..ROWNUMBER..  BASE  COMPARE 
##   ----------------------------------------
##     month          1         1       5    
##     month          2         1      12    
##     month          3         1       5    
##     month          4         1       9    
##     month          5         1      11    
##     month          7         1       6    
##     month          8         1      12    
##     month          9         1       2    
##     month         10         1       2    
##     month         11         1       2    
##   ----------------------------------------
## 
## 
## First 10 of 325828 rows are shown in table below
##   ========================================
##    VARIABLE  ..ROWNUMBER..  BASE  COMPARE 
##   ----------------------------------------
##      day           1         1      16    
##      day           2         1      18    
##      day           3         1       3    
##      day           4         1      21    
##      day           5         1       7    
##      day           6         1      30    
##      day           7         1      11    
##      day           8         1      16    
##      day           9         1      23    
##      day          10         1      16    
##   ----------------------------------------
## 
## 
## First 10 of 336248 rows are shown in table below
##   ========================================
##    VARIABLE  ..ROWNUMBER..  BASE  COMPARE 
##   ----------------------------------------
##    dep_time        1        517     727   
##    dep_time        2        533     626   
##    dep_time        3        542    1552   
##    dep_time        4        544     734   
##    dep_time        5        554      NA   
##    dep_time        6        554    1300   
##    dep_time        7        555    2013   
##    dep_time        8        557    1058   
##    dep_time        9        557    1923   
##    dep_time       10        558    1203   
##   ----------------------------------------
## 
## 
## First 10 of 335118 rows are shown in table below
##   ==============================================
##       VARIABLE     ..ROWNUMBER..  BASE  COMPARE 
##   ----------------------------------------------
##    sched_dep_time        1        515     730   
##    sched_dep_time        2        529     630   
##    sched_dep_time        3        540    1555   
##    sched_dep_time        4        545     749   
##    sched_dep_time        5        600    1059   
##    sched_dep_time        6        558    1220   
##    sched_dep_time        7        600    2015   
##    sched_dep_time        8        600    1100   
##    sched_dep_time        9        600    1720   
##    sched_dep_time       10        600    1205   
##   ----------------------------------------------
## 
## 
## First 10 of 324195 rows are shown in table below
##   =========================================
##    VARIABLE   ..ROWNUMBER..  BASE  COMPARE 
##   -----------------------------------------
##    dep_delay        1          2      -3   
##    dep_delay        2          4      -4   
##    dep_delay        3          2      -3   
##    dep_delay        4         -1     -15   
##    dep_delay        5         -6      NA   
##    dep_delay        6         -4      40   
##    dep_delay        7         -5      -2   
##    dep_delay        8         -3      -2   
##    dep_delay        9         -3     123   
##    dep_delay       11         -2      -4   
##   -----------------------------------------
## 
## 
## First 10 of 336299 rows are shown in table below
##   ========================================
##    VARIABLE  ..ROWNUMBER..  BASE  COMPARE 
##   ----------------------------------------
##    arr_time        1         830   1103   
##    arr_time        2         850    740   
##    arr_time        3         923   1817   
##    arr_time        4        1004   1030   
##    arr_time        5         812     NA   
##    arr_time        6         740   1434   
##    arr_time        7         913   2240   
##    arr_time        8         709   1416   
##    arr_time        9         838   2142   
##    arr_time       10         753   1503   
##   ----------------------------------------
## 
## 
## First 10 of 336309 rows are shown in table below
##   ==============================================
##       VARIABLE     ..ROWNUMBER..  BASE  COMPARE 
##   ----------------------------------------------
##    sched_arr_time        1         819   1128   
##    sched_arr_time        2         830    742   
##    sched_arr_time        3         850   1849   
##    sched_arr_time        4        1022   1043   
##    sched_arr_time        5         837   1254   
##    sched_arr_time        6         728   1350   
##    sched_arr_time        7         854   2308   
##    sched_arr_time        8         723   1415   
##    sched_arr_time        9         846   1957   
##    sched_arr_time       10         745   1520   
##   ----------------------------------------------
## 
## 
## First 10 of 332538 rows are shown in table below
##   =========================================
##    VARIABLE   ..ROWNUMBER..  BASE  COMPARE 
##   -----------------------------------------
##    arr_delay        1         11     -25   
##    arr_delay        2         20      -2   
##    arr_delay        3         33     -32   
##    arr_delay        4        -18     -13   
##    arr_delay        5        -25      NA   
##    arr_delay        6         12      44   
##    arr_delay        7         19     -28   
##    arr_delay        8        -14       1   
##    arr_delay        9         -8     105   
##    arr_delay       10          8     -17   
##   -----------------------------------------
## 
## 
## First 10 of 294014 rows are shown in table below
##   ========================================
##    VARIABLE  ..ROWNUMBER..  BASE  COMPARE 
##   ----------------------------------------
##    carrier         1         UA     B6    
##    carrier         3         AA     DL    
##    carrier         5         DL     MQ    
##    carrier         6         UA     MQ    
##    carrier         8         EV     DL    
##    carrier         9         B6     DL    
##    carrier        11         B6     AA    
##    carrier        13         UA     EV    
##    carrier        14         UA     EV    
##    carrier        16         B6     UA    
##   ----------------------------------------
## 
## 
## First 10 of 336520 rows are shown in table below
##   ========================================
##    VARIABLE  ..ROWNUMBER..  BASE  COMPARE 
##   ----------------------------------------
##     flight         1        1545    215   
##     flight         2        1714    363   
##     flight         3        1141    161   
##     flight         4         725   1717   
##     flight         5         461   3281   
##     flight         6        1696   3697   
##     flight         7         507     43   
##     flight         8        5708    507   
##     flight         9          79    884   
##     flight        10         301    743   
##   ----------------------------------------
## 
## 
## First 10 of 336593 rows are shown in table below
##   ==========================================
##    VARIABLE  ..ROWNUMBER..   BASE   COMPARE 
##   ------------------------------------------
##    tailnum         1        N14228  N519JB  
##    tailnum         2        N24211  N823UA  
##    tailnum         3        N619AA  N3731T  
##    tailnum         4        N804JB  N607JB  
##    tailnum         5        N668DN  N803MQ  
##    tailnum         6        N39463  N534MQ  
##    tailnum         7        N516JB  N608JB  
##    tailnum         8        N829AS  N302NB  
##    tailnum         9        N593JB  N361NW  
##    tailnum        10        N3ALAA  N425AA  
##   ------------------------------------------
## 
## 
## First 10 of 224398 rows are shown in table below
##   ========================================
##    VARIABLE  ..ROWNUMBER..  BASE  COMPARE 
##   ----------------------------------------
##     origin         2        LGA     EWR   
##     origin         4        JFK     LGA   
##     origin         7        EWR     JFK   
##     origin         9        JFK     LGA   
##     origin        13        JFK     EWR   
##     origin        14        EWR     JFK   
##     origin        16        JFK     EWR   
##     origin        19        LGA     EWR   
##     origin        20        EWR     JFK   
##     origin        22        LGA     JFK   
##   ----------------------------------------
## 
## 
## First 10 of 327674 rows are shown in table below
##   ========================================
##    VARIABLE  ..ROWNUMBER..  BASE  COMPARE 
##   ----------------------------------------
##      dest          1        IAH     SJU   
##      dest          2        IAH     BOS   
##      dest          3        MIA     LAS   
##      dest          4        BQN     TPA   
##      dest          5        ATL     CMH   
##      dest          7        FLL     MCO   
##      dest          8        IAD     FLL   
##      dest          9        MCO     DEN   
##      dest         10        ORD     DFW   
##      dest         11        PBI     MIA   
##   ----------------------------------------
## 
## 
## First 10 of 335159 rows are shown in table below
##   ========================================
##    VARIABLE  ..ROWNUMBER..  BASE  COMPARE 
##   ----------------------------------------
##    air_time        1        227     193   
##    air_time        2        227      39   
##    air_time        3        160     300   
##    air_time        4        183     132   
##    air_time        5        116      NA   
##    air_time        6        150     130   
##    air_time        7        158     124   
##    air_time        8         53     177   
##    air_time        9        140     241   
##    air_time       10        138     199   
##   ----------------------------------------
## 
## 
## First 10 of 332810 rows are shown in table below
##   ========================================
##    VARIABLE  ..ROWNUMBER..  BASE  COMPARE 
##   ----------------------------------------
##    distance        1        1400   1608   
##    distance        2        1416    200   
##    distance        3        1089   2248   
##    distance        4        1576   1010   
##    distance        5         762    479   
##    distance        7        1065    944   
##    distance        8         229   1076   
##    distance        9         944   1620   
##    distance       10         733   1389   
##    distance       11        1028   1089   
##   ----------------------------------------
## 
## 
## First 10 of 315646 rows are shown in table below
##   ========================================
##    VARIABLE  ..ROWNUMBER..  BASE  COMPARE 
##   ----------------------------------------
##      hour          1         5       7    
##      hour          2         5       6    
##      hour          3         5      15    
##      hour          4         5       7    
##      hour          5         6      10    
##      hour          6         5      12    
##      hour          7         6      20    
##      hour          8         6      11    
##      hour          9         6      17    
##      hour         10         6      12    
##   ----------------------------------------
## 
## 
## First 10 of 313712 rows are shown in table below
##   ========================================
##    VARIABLE  ..ROWNUMBER..  BASE  COMPARE 
##   ----------------------------------------
##     minute         1         15     30    
##     minute         2         29     30    
##     minute         3         40     55    
##     minute         4         45     49    
##     minute         5          0     59    
##     minute         6         58     20    
##     minute         7          0     15    
##     minute         9          0     20    
##     minute        10          0      5    
##     minute        11          0     29    
##   ----------------------------------------
## 
## 
## First 10 of 336718 rows are shown in table below
##   ============================================================================
##    VARIABLE   ..ROWNUMBER..           BASE                    COMPARE         
##   ----------------------------------------------------------------------------
##    time_hour        1        2013-01-01 05:00:00 EST  2013-05-16 07:00:00 EDT 
##    time_hour        2        2013-01-01 05:00:00 EST  2013-12-18 06:00:00 EST 
##    time_hour        3        2013-01-01 05:00:00 EST  2013-05-03 15:00:00 EDT 
##    time_hour        4        2013-01-01 05:00:00 EST  2013-09-21 07:00:00 EDT 
##    time_hour        5        2013-01-01 06:00:00 EST  2013-11-07 10:00:00 EST 
##    time_hour        6        2013-01-01 05:00:00 EST  2013-01-30 12:00:00 EST 
##    time_hour        7        2013-01-01 06:00:00 EST  2013-06-11 20:00:00 EDT 
##    time_hour        8        2013-01-01 06:00:00 EST  2013-12-16 11:00:00 EST 
##    time_hour        9        2013-01-01 06:00:00 EST  2013-02-23 17:00:00 EST 
##    time_hour       10        2013-01-01 06:00:00 EST  2013-02-16 12:00:00 EST 
##   ----------------------------------------------------------------------------