Hi all

I am trying to calculate herding of Robinhood investors by using the Lakonishok et al. (1992) measure, there is an adjustment factor (AF) which I need to calculated based upon this formula
Array

Now I am no expert at writing codes and I keep getting "." values when I try to run the code, so I was hoping anyone would be so helpful and tell me how it can be done.

Code:
* Example generated by -dataex-. For more info, type help dataex
clear
input double date long(tic gics) double(outstanding vol close_price) float(market_cap small_cap mid_cap large_cap lprice) double spreturn float(stock_return top_mover market_mover users diff_users B S sum_BS active_trader p actual_value)
21930 2174 100    68750000  325155   49.47   3401062400 0 1 0  3.9013665 .008366548    .02102284 0 0  16 1 1 0 1 1240522 8.061123e-07 .9999992
21930 7001  11    47595000  514359    1.16     55210200 1 0 0     .14842 .008366548    .24353448 0 0  63 1 1 0 1 1240522 8.061123e-07 .9999992
21930 6261  15     3173000    1116      14     44422000 1 0 0  2.6390574 .008366548   .006071429 0 0  10 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2934 100     1000000   17436 25.8459     25845900 1 0 0   3.252152 .008366548  -.007900673 0 0   4 1 1 0 1 1240522 8.061123e-07 .9999992
21930 1356  14   119656000  454943    2.75    329054016 1 0 0   1.011601 .008366548    -.2581818 0 0  96 1 1 0 1 1240522 8.061123e-07 .9999992
21930 1257 100    18692000   47229    35.2    657958400 1 0 0   3.561046 .008366548  -.002840909 0 0  17 1 1 0 1 1240522 8.061123e-07 .9999992
21930 3310  11    36090000  354276   64.58   2330692096 0 1 0   4.167905 .008366548    .06286776 0 0   9 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4226   1    76319000   59403   .8607     65687764 1 0 0 -.15000927 .008366548    -.2315557 0 0  49 1 1 0 1 1240522 8.061123e-07 .9999992
21930 1782  13    17340000  107952    1.06     18380400 1 0 0  .05826891 .008366548    .14056604 0 0  10 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4810  21  2355374000       0  14.773  34795941888 0 0 1   2.692801 .008366548  -.013335139 0 0  75 1 1 0 1 1240522 8.061123e-07 .9999992
21930 7448 100      450000    5423 22.1234      9955530 1 0 0   3.096636 .008366548   .020946147 0 0   8 1 1 0 1 1240522 8.061123e-07 .9999992
21930 6490 100     6900000   10611 21.3663    147427472 1 0 0   3.061815 .008366548    .01820156 0 0 146 1 1 0 1 1240522 8.061123e-07 .9999992
21930 3427 100       50000      31   70.83      3541500 1 0 0  4.2602825 .008366548   .011153466 0 0 379 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2205   9      566000       0      75     42450000 1 0 0   4.317488 .008366548   .024266666 0 0  28 1 1 0 1 1240522 8.061123e-07 .9999992
21930 5224   9  1950060000       0   4.811   9381738496 0 1 0   1.570905 .008366548   -.16586988 0 0  53 1 1 0 1 1240522 8.061123e-07 .9999992
21930 7501  21 16329158000       0  24.729 4.038037e+11 0 0 1  3.2079766 .008366548 -.0039629587 0 0  11 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4204  18   885637000 4319848  137.98 1.222002e+11 0 0 1   4.927109 .008366548   .028120017 0 0   7 1 1 0 1 1240522 8.061123e-07 .9999992
21930 6528  24     9127000   26875   19.23    175512208 1 0 0  2.9564714 .008366548   .017160686 0 0  12 1 1 0 1 1240522 8.061123e-07 .9999992
21930 6240 100     2000000    7264 27.6162     55232400 1 0 0  3.3184025 .008366548   .020965954 0 0  56 1 1 0 1 1240522 8.061123e-07 .9999992
21930  812 100     1450000    3101   25.51     36989500 1 0 0  3.2390704 .008366548  .0003920031 0 0 288 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2533 100    23612000   59252    9.59    226439072 1 0 0   2.260721 .008366548     .0177268 0 0   2 1 1 0 1 1240522 8.061123e-07 .9999992
21930 7280   5  1100442000  566727   93.09 102440148992 0 0 1   4.533567 .008366548   .067031905 0 0  15 1 1 0 1 1240522 8.061123e-07 .9999992
21930 7301 100     1500000    3995 121.494    182240992 1 0 0   4.799865 .008366548    .02374027 0 0  48 1 1 0 1 1240522 8.061123e-07 .9999992
21930 6153   9    63662000 1440589   54.64   3478491648 0 1 0  4.0007663 .008366548   -.12573206 0 0  73 1 1 0 1 1240522 8.061123e-07 .9999992
21930  675   3    48498000  386868   102.5   4971044864 0 1 0   4.629863 .008366548     .0662439 0 0  73 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2789   1    29306000  195427    5.56    162941360 1 0 0   1.715598 .008366548   -.18884893 0 0   2 1 1 0 1 1240522 8.061123e-07 .9999992
21930 7073 100    10482000   29701   11.87    124421336 1 0 0   2.474014 .008366548    .01432182 0 0  21 1 1 0 1 1240522 8.061123e-07 .9999992
21930 7222 100     3195000  222763    5.79     18499050 1 0 0  1.7561322 .008366548   -.10708117 0 0  59 1 1 0 1 1240522 8.061123e-07 .9999992
21930 7718   5    94088000  517904   23.77   2236471808 0 1 0  3.1684244 .008366548    .06520825 0 0   7 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4715 100    13249000 1959158   74.71    989832768 1 0 0   4.313614 .008366548   -.09262481 0 0  61 1 1 0 1 1240522 8.061123e-07 .9999992
21930 5319   2    65630000  330052   12.78    838751424 1 0 0  2.5478814 .008366548    .08685446 0 0  57 1 1 0 1 1240522 8.061123e-07 .9999992
21930 6292  14    21363000  102941   24.74    528520608 1 0 0  3.2084215 .008366548    -.0966047 0 0  45 1 1 0 1 1240522 8.061123e-07 .9999992
21930 6428 100      950000    5118 45.5698     43291312 1 0 0   3.819245 .008366548   .015264495 0 0  70 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2354   9    26080000  149820    1.57     40945600 1 0 0   .4510756 .008366548    .08280255 0 0  22 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2535 100      175000     403 43.3899      7593233 1 0 0   3.770227 .008366548   .014524117 0 0   7 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4113  14     7833000    7834    6.06     47467980 1 0 0  1.8017098 .008366548     .0379703 0 0   5 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4044  14    10119000   33708   5.155     52163444 1 0 0   1.639967 .008366548   -.13676043 0 0   4 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2918   1    33496000  267164    6.51    218058960 1 0 0  1.8733394 .008366548    -.2749616 0 0   6 1 1 0 1 1240522 8.061123e-07 .9999992
21930  223  24     5400000   32870   22.04    119016000 1 0 0   3.092859 .008366548   .010703267 0 0  65 1 1 0 1 1240522 8.061123e-07 .9999992
21930 1494  19     2111000   79032    1.02      2153220 1 0 0  .01980263 .008366548     .2655039 0 0  34 1 1 0 1 1240522 8.061123e-07 .9999992
21930 7976  13    30745000   49796    1.26     38738700 1 0 0   .2311117 .008366548  -.015873017 0 0  50 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2667 100      950000    1483   25.02     23769000 1 0 0  3.2196755 .008366548   -.01558753 0 0   2 1 1 0 1 1240522 8.061123e-07 .9999992
21930 1217  13    21941000   76954    5.43    119139632 1 0 0   1.691939 .008366548   -.12707183 0 0   7 1 1 0 1 1240522 8.061123e-07 .9999992
21930 5786  16    19816000  136144   21.78    431592480 1 0 0   3.080992 .008366548   -.05096419 0 0   2 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2221   9    63596000 1052438   48.74   3099668992 0 1 0     3.8865 .008366548    .01415675 0 0   1 1 1 0 1 1240522 8.061123e-07 .9999992
21930 5627 100    12183000   11445   21.35    260107056 1 0 0   3.061052 .008366548   .016861826 0 0  33 1 1 0 1 1240522 8.061123e-07 .9999992
21930 6715  24    14000000   34987   26.14    365960000 1 0 0  3.2634666 .008366548  .0045906655 0 0  25 1 1 0 1 1240522 8.061123e-07 .9999992
21930 7896 100      996000    9651   17.77     17698920 1 0 0   2.877512 .008366548   -.05064716 0 0   9 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4856 100    20340000   75245   15.91    323609408 1 0 0   2.766948 .008366548 -.0031426775 0 0 293 1 1 0 1 1240522 8.061123e-07 .9999992
21930 7108  24   114341000 2592077    9.88   1129689088 1 0 0  2.2905126 .008366548   .072874494 0 0   2 1 1 0 1 1240522 8.061123e-07 .9999992
21930 8181 100    33854000   45563   20.33    688251840 1 0 0  3.0120976 .008366548    .03148057 0 0   8 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4409  14   215397000 1343488   80.62  17365305344 0 0 1  4.3897467 .008366548    .04068469 0 0  55 1 1 0 1 1240522 8.061123e-07 .9999992
21930 1607  24    38378000   43863  107.96   4143288832 0 1 0   4.681761 .008366548    .06567247 0 0  40 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4230  20    22495000  559395   39.32    884503424 1 0 0  3.6717334 .008366548    .17166837 0 0 257 1 1 0 1 1240522 8.061123e-07 .9999992
21930 3565 100     2250000    1296 29.2758     65870552 1 0 0   3.376761 .008366548   .019736437 0 0  34 1 1 0 1 1240522 8.061123e-07 .9999992
21930 5325  17    32200000   60379   27.65    890329984 1 0 0  3.3196256 .008366548  .0018083183 0 0   4 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2869 100    72300000 2971153    29.8   2154540032 0 1 0  3.3945084 .008366548    .01510067 0 0  55 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4516 100     9800000    5844   26.48    259504000 1 0 0    3.27639 .008366548   .008119335 0 0  21 1 1 0 1 1240522 8.061123e-07 .9999992
21930 5841 100    27709000   80442   23.81    659751296 1 0 0   3.170106 .008366548   .034859303 0 0  24 1 1 0 1 1240522 8.061123e-07 .9999992
21930 7248 100      225000       0 65.6763     14777168 1 0 0   4.184738 .008366548    .02661386 0 0  13 1 1 0 1 1240522 8.061123e-07 .9999992
21930 5721   1   363416000 9634964    2.96   1075711360 1 0 0  1.0851892 .008366548        -.125 0 0 162 1 1 0 1 1240522 8.061123e-07 .9999992
21930 3315   2    64725000  380175   14.05    909386240 1 0 0  2.6426225 .008366548     .1900356 0 0  14 1 1 0 1 1240522 8.061123e-07 .9999992
21930 6593  16     4600000    6557 26.7251    122935456 1 0 0   3.285603 .008366548  .0028100924 0 0  67 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2005   9    50307000 2240780   87.21   4387273216 0 1 0   4.468319 .008366548   -.05882353 0 0  15 1 1 0 1 1240522 8.061123e-07 .9999992
21930 3663  14    26150000  612661    2.73     71389504 1 0 0  1.0043017 .008366548    .15750916 0 0  74 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2111  15    35857000   68306   20.24    725745664 1 0 0   3.007661 .008366548   -.00444664 0 0  22 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4152  14   632238000       0   8.931   5646517760 0 1 0  2.1895285 .008366548   .010077259 0 0   4 1 1 0 1 1240522 8.061123e-07 .9999992
21930 5827 100    32397000  384343   17.39    563383808 1 0 0   2.855895 .008366548   -.03105233 0 0  58 1 1 0 1 1240522 8.061123e-07 .9999992
21930 7143   1     8775000    3332    7.15     62741248 1 0 0  1.9671123 .008366548  -.012587412 0 0  26 1 1 0 1 1240522 8.061123e-07 .9999992
21930 3093 100     2500000    5882   19.09     47725000 1 0 0  2.9491646 .008366548  -.019381875 0 0   3 1 1 0 1 1240522 8.061123e-07 .9999992
21930 1399 100      200000     410   22.59      4518000 1 0 0   3.117507 .008366548   .013058876 0 0 232 1 1 0 1 1240522 8.061123e-07 .9999992
21930 1005   1    35125000    9450   5.445    191255632 1 0 0  1.6946977 .008366548  -.015610652 0 0  11 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4303 100    23350000   89134   21.61    504593504 1 0 0   3.073156 .008366548   .016658954 0 0 219 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2138 100     5100000    8238   57.08    291108000 1 0 0  4.0444536 .008366548    .02014716 0 0  17 1 1 0 1 1240522 8.061123e-07 .9999992
21930  949  14   352431000 4834484   29.75  10484822016 0 0 1   3.392829 .008366548   .029915966 0 0   2 1 1 0 1 1240522 8.061123e-07 .9999992
21930 7047  15    20000000   22598   28.44    5.688e+08 1 0 0   3.347797 .008366548  .0014064697 0 0  40 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2161 100       71000       0 72.1633      5123595 1 0 0  4.2789316 .008366548  -.002810293 0 0  20 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4672 100    11647000   27273   14.69    171094432 1 0 0   2.687167 .008366548  .0013478557 0 0   9 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4251 100     2050000     620  12.175     24958750 1 0 0  2.4993846 .008366548    .01560575 0 0  14 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4330 100    17250000   58303   37.21    641872512 1 0 0  3.6165776 .008366548   .025262026 0 0  49 1 1 0 1 1240522 8.061123e-07 .9999992
21930 3064 100     2025000    7133 28.8677     58457092 1 0 0   3.362723 .008366548   .020528134 0 0  27 1 1 0 1 1240522 8.061123e-07 .9999992
21930 7880  23   281896000 1427995  155.18  43744620544 0 0 1   5.044586 .008366548    .03982472 0 0  90 1 1 0 1 1240522 8.061123e-07 .9999992
21930 3263 100      600000      51 50.8385     30503100 1 0 0   3.928654 .008366548   .006268871 0 0  85 1 1 0 1 1240522 8.061123e-07 .9999992
21930 3016 100    56700000  236382  148.19   8402373120 0 1 0   4.998495 .008366548    .04021864 0 0  30 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2793   1    18000000   46152   25.21    453780000 1 0 0   3.227241 .008366548    .01547005 0 0  23 1 1 0 1 1240522 8.061123e-07 .9999992
21930 3603 100    17400000  225100    9.86    171564000 1 0 0  2.2884862 .008366548  .0030425964 0 0  25 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4909   2    20698000  199336   34.99    724223040 1 0 0   3.555062 .008366548   -.01914833 0 0  92 1 1 0 1 1240522 8.061123e-07 .9999992
21930 5127  16     9659000   22299    6.33     61141472 1 0 0  1.8453002 .008366548   .008688783 0 0 105 1 1 0 1 1240522 8.061123e-07 .9999992
21930 1031 100     4750000   30231   30.66    145635008 1 0 0   3.422959 .008366548   .012557077 0 0 120 1 1 0 1 1240522 8.061123e-07 .9999992
21930 3380 100    35550000  535305   48.04   1707821952 1 0 0   3.872034 .008366548  .0010407993 0 0  14 1 1 0 1 1240522 8.061123e-07 .9999992
21930 5716  14    92094000  661914  106.33   9792355328 0 1 0  4.6665473 .008366548   -.04175679 0 0  25 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2227 100      612000     903  9.5492      5844111 1 0 0  2.2564573 .008366548  -.021551544 0 0  91 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2279 100     4574000  164914      48    219552000 1 0 0   3.871201 .008366548     -.020625 0 0 106 1 1 0 1 1240522 8.061123e-07 .9999992
21930 5950   1     6900000    9779   25.52    176088000 1 0 0  3.2394624 .008366548   .005485893 0 0  21 1 1 0 1 1240522 8.061123e-07 .9999992
21930 3609  21   101212000  369008   73.12   7400621568 0 1 0   4.292102 .008366548   .010530635 0 0   2 1 1 0 1 1240522 8.061123e-07 .9999992
21930 2415  13    91529000  700962  234.41  21455312896 0 0 1   5.457072 .008366548   .035919968 0 0 153 1 1 0 1 1240522 8.061123e-07 .9999992
21930  683   1   1.684e+08 1394296   .3362     56616080 1 0 0  -1.090049 .008366548     -.189768 0 0 181 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4524 100     1650000    3693    36.6     60390000 1 0 0   3.600048 .008366548    .04344262 0 0   5 1 1 0 1 1240522 8.061123e-07 .9999992
21930 5087   9   306462000 1478237  34.745  10648022016 0 0 1  3.5480356 .008366548  -.003309829 0 0   5 1 1 0 1 1240522 8.061123e-07 .9999992
21930 4348   3    19261000  554776   24.32    468427520 1 0 0   3.191299 .008366548    .11554276 0 0 283 1 1 0 1 1240522 8.061123e-07 .9999992
Thank you very much in advance!