Frequencies for first 10,000 rows of rail variable in accident dataset : RAIL XING | ID | Freq. Percent Cum. ------------+----------------------------------- 0000000 | 9,905 99.05 99.05 0000009 | 3 0.03 99.08 003621F | 1 0.01 99.09 025132G | 1 0.01 99.10 025422P | 1 0.01 99.11 025536C | 1 0.01 99.12 026036H | 1 0.01 99.13 026231H | 1 0.01 99.14 026993M | 1 0.01 99.15 027658N | 1 0.01 99.16 028207N | 1 0.01 99.17 028688J | 1 0.01 99.18 029473N | 1 0.01 99.19 029580D | 1 0.01 99.20 029857X | 1 0.01 99.21 057224H | 1 0.01 99.22 2719989 | 1 0.01 99.23 2721329 | 1 0.01 99.24 2722899 | 1 0.01 99.25 272399E | 1 0.01 99.26 272590Y | 1 0.01 99.27 2726099 | 1 0.01 99.28 351260L | 1 0.01 99.29 351449V | 1 0.01 99.30 351476S | 1 0.01 99.31 352565M | 1 0.01 99.32 352566U | 1 0.01 99.33 425308U | 1 0.01 99.34 425319G | 1 0.01 99.35 425757J | 1 0.01 99.36 433820U | 1 0.01 99.37 434218U | 2 0.02 99.39 434272M | 1 0.01 99.40 437950E | 1 0.01 99.41 437951L | 1 0.01 99.42 438244X | 1 0.01 99.43 503937W | 1 0.01 99.44 600703J | 1 0.01 99.45 620291D | 1 0.01 99.46 6210959 | 1 0.01 99.47 621326F | 1 0.01 99.48 621800L | 1 0.01 99.49 622145L | 1 0.01 99.50 622339L | 1 0.01 99.51 623124D | 1 0.01 99.52 623375J | 1 0.01 99.53 624097Y | 1 0.01 99.54 624329L | 1 0.01 99.55 624466G | 1 0.01 99.56 625731J | 1 0.01 99.57 638355S | 1 0.01 99.58 639380D | 1 0.01 99.59 639461D | 1 0.01 99.60 667980F | 1 0.01 99.61 672556W | 1 0.01 99.62 718020Y | 1 0.01 99.63 723177P | 1 0.01 99.64 723560E | 1 0.01 99.65 726628B | 1 0.01 99.66 726756J | 1 0.01 99.67 726960H | 1 0.01 99.68 727051W | 1 0.01 99.69 727710Y | 1 0.01 99.70 728014K | 1 0.01 99.71 728027Y | 1 0.01 99.72 728301K | 1 0.01 99.73 733022H | 1 0.01 99.74 734034X | 1 0.01 99.75 745480X | 1 0.01 99.76 746005W | 1 0.01 99.77 746932J | 1 0.01 99.78 747894F | 1 0.01 99.79 752446H | 1 0.01 99.80 752503U | 1 0.01 99.81 752776N | 1 0.01 99.82 755186C | 1 0.01 99.83 756871X | 1 0.01 99.84 757241G | 1 0.01 99.85 761246X | 1 0.01 99.86 761529V | 1 0.01 99.87 762256G | 1 0.01 99.88 787734B | 1 0.01 99.89 788997T | 1 0.01 99.90 805354V | 1 0.01 99.91 831163D | 1 0.01 99.92 833770X | 1 0.01 99.93 834941A | 1 0.01 99.94 865124H | 1 0.01 99.95 868543R | 1 0.01 99.96 910252N | 1 0.01 99.97 9999999 | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016