Dear All

Attached below is part of my dataset:

Code:
* Example generated by -dataex-. To install: ssc install dataex
clear
input double event_dt float(returns_10mins returns_20mins returns_30mins returns_40mins pos_cnfp pos_cci pos_ijc pos_ism pos_rs neg_cnfp neg_cci neg_ijc neg_ism neg_rs)
1.3886568e+12     .291382    .3361348   .17941247   .22421534         0         0          0 2.6655996         0          0          0          0          0          0
1.3891698e+12  .022160664   .11075424   .15502162   .13289039         0         0          0         0         0          0          0  -.4327536          0          0
1.3892562e+12   -.4881305    -.465891   -.4214268   -.4214268         0         0          0         0         0 -2.0179906          0          0          0          0
1.3897746e+12   .13274339   .22114117   .17695205   .22114117         0         0   .4387522         0         0          0          0          0          0 -.59006274
1.3903794e+12   .06546645   .08727908   .13089007   .10908695         0         0  .26445103         0         0          0          0          0          0          0
1.3908168e+12   .02168492   .04336514   .02168492  -.06508298         0         0          0         0         0          0  -.3839862          0          0          0
1.3909842e+12           0  -.15474746   -.0883978 -.022092124         0         0          0         0         0          0          0  -.0841513          0          0
1.3913352e+12   -.4200293   -.4421851   -.2871978   -.3978785         0         0          0         0         0          0          0          0  -.3214038          0
 1.391589e+12  -.11095086           0  -.08875084 -.066555746         0         0          0         0         0          0          0  -.8975567          0          0
1.3916754e+12   .04425758           0  -.06642312  -.08857396         0         0          0         0         0     -.7778          0          0          0          0
1.3921938e+12  -.12978587   -.1730853   -.2380696   -.2380696         0         0          0         0         0          0          0 -1.0137575          0 -.59006274
1.3927986e+12           0    .1081198    .0865052    .1081198         0         0   .6711537         0         0          0          0          0          0          0
 1.393236e+12  -.26396847  -.02197078   .10978155    .4384049         0         0          0         0         0          0  -1.089188          0          0          0
1.3934034e+12  -.04373497  -.19695815  -.21886636  -.19695815         0         0          0         0         0          0          0 -.25845245          0          0
1.3937544e+12   .06515366    .0217226  -.10868385  -.08693763         0         0          0         0         0          0          0          0  -.4280825          0
1.3940082e+12  -.06513951 -.021708455  -.04342163 -.021708455         0         0 .032049473         0         0          0          0          0          0          0
1.3940946e+12   -.4994039    -.368884   -.3906255  -.56472784         0         0          0         0         0 -1.4411577          0          0          0          0
 1.394613e+12  -.04495392  -.08992806   .08984727   .29170895         0         0  .14825024         0 .04330736          0          0          0          0          0
1.3952178e+12    .0893256           0   -.0670466  -.04469274         0         0   .5549529         0         0          0          0          0          0          0
1.3958226e+12           0 -.022802416           0   .04558924         0         0  .09014986         0         0          0          0          0          0          0
  1.39626e+12  -.04460303  -.06691201   .02229406  -.04460303         0  .4219586          0         0         0          0          0          0          0          0
1.3964274e+12   .04443457  .022219753   .19980027   .11104943         0         0          0         0         0          0          0  -.0841513          0          0
1.3964328e+12    .3099405    .3541394    .4645512     .486619         0         0          0 1.4921342         0          0          0          0          0          0
1.3965138e+12     .614711     .483305    .6365953    .7022192  2.841826         0          0         0         0          0          0          0          0          0
1.3970322e+12   .10882578    .0870701   .04354452    .0870701         0         0   .7292541         0         0          0          0          0          0          0
1.3974642e+12   .13060516   .10884947   .08708905    .0653239         0         0          0         0 2.3656642          0          0          0          0          0
 1.397637e+12   .15488443    .2211901    .2432822   .15488443         0         0          0         0         0          0          0   -1.42046          0          0
1.3982418e+12   .02229406   .02229406           0  -.02229903         0         0          0         0         0          0          0  -.7232555          0          0
1.3986792e+12    .4163477    .5037794    .4382128    .4600731         0  .8450798          0         0         0          0          0          0          0          0
1.3988466e+12 -.022368863   -.0671216   .22341385   .22341385         0         0   .3225514         0         0          0          0          0          0          0
1.3991976e+12  -.02249972    .0899483   .24716337    .3144657         0         0          0         0         0          0          0          0 -.26806444          0
1.3994514e+12  .067226894  .022413986   .04482295  -.04484305         0         0  1.1940572         0         0          0          0          0          0          0
1.3995378e+12   -.3830127   -.4055887   -.6316285    -.473347 1.8323687         0          0         0         0          0          0          0          0          0
1.4000562e+12  -.13714288  -.06854793  -.09140769  -.13714288         0         0          0         0         0          0          0 -.31655285          0 -.59006274
 1.400661e+12   .11492933    .1838236    .1838236    .1608641         0         0          0         0         0          0          0  -.9556571          0          0
1.4010984e+12   -.1145082   .04576659    .3655476   .50228417         0         0          0         0         0          0 -.20264864          0          0          0
1.4012658e+12  -.02235386  -.02235386   .06703162   .06703162         0         0          0         0         0          0          0   -.490854          0          0
1.4017032e+12   .11152003  -.08930565     -.20105  -.13398841         0         0          0  .5853651         0          0          0          0          0          0
1.4018706e+12   .06694187   .06694187   .08924588    .1115449         0         0          0         0         0          0          0 -.20035207          0          0
 1.401957e+12    .1783724    .3564272    .3564272    .3786618  .4623907         0          0         0         0          0          0          0          0          0
1.4024754e+12 -.022043426           0 -.022043426           0         0         0          0         0         0          0          0  -.9556571          0          0
 1.402821e+12   .04420866 -.022111664  .022106776  .022106776         0         0          0         0 .04330736          0          0          0          0          0
1.4030802e+12   -.1103631  -.04413063  -.08828074   -.1103631         0         0  .26445103         0         0          0          0          0          0          0
 1.403685e+12   .06560963   .06560963  -.04376368  -.04376368         0         0          0         0         0          0          0   -.490854          0          0
1.4041224e+12   .13230433   .22041005    .1983909   .15433803         0 1.3487953          0         0         0          0          0          0          0          0
1.4042898e+12   .04385003   .04385003   .06576784   .04385003         0         0          0         0         0          0          0   -.490854          0          0
1.4042952e+12  .021975607  -.10995053  -.17597893   -.2200221         0         0          0         0         0          0          0          0 -.05470702          0
1.4043762e+12  -.19984463   -.1554002  -.06657051  -.06657051         0         0          0         0         0 -1.8593615          0          0          0          0
1.4048946e+12   .11229648   .06739302   .08984727   .17961387         0         0  1.8331615         0         0          0          0          0          0          0
 1.405413e+12  -.11280317  -.09023236  -.11280317 -.067666635         0         0          0         0         0          0          0          0          0 -.59006274
1.4054994e+12   .26972368    .2472745    .1798966   .22482024         0         0          0         0         0          0          0 -.20035207          0          0
1.4061042e+12  .068642035  -.13742559  -.27504027    -.389864         0         0   .3806518         0         0          0          0          0          0          0
1.4065416e+12   .18386583    .1609011   .11495575  .023001725         0  .7846338          0         0         0          0          0          0          0          0
 1.406709e+12   .04548556  -.02275054           0  -.02275054         0         0          0         0         0          0          0 -.25845245          0          0
  1.40706e+12  -.09097112  -.20480153           0           0         0         0          0         0         0          0          0          0 -.10804638          0
1.4073138e+12  .068298236  .068298236   .04553734   .09105396         0         0  .26445103         0         0          0          0          0          0          0
1.4074002e+12  -1.0454271  -1.2324305  -1.2558304   -1.209036         0         0          0         0         0  -2.868819          0          0          0          0
1.4079186e+12    .1166453   .13995804   .13995804   .13995804         0         0   .4387522         0         0          0          0          0          0 -1.0123093
1.4085234e+12  .022896394           0  .022896394   .06867346         0         0  .26445103         0         0          0          0          0          0          0
1.4091282e+12  -.09057972  -.02263724  -.09057972  -.09057972         0         0          0         0         0          0          0  -.4327536          0          0
1.4095656e+12  -.24980143  -.36355415  -.29528698   -.2270664         0         0          0         0         0          0 -1.1496339          0          0          0
 1.409652e+12   .13586959    .3844854    .5649094    .3393285         0         0          0         0         0          0          0          0  -.6414399          0
 1.409733e+12 -.067834936  -.04521818 -.022606533           0         0         0          0         0         0          0          0  -1.246159          0          0
1.4098194e+12   .06719678   .13434844   .20145503   .17909116 .04418687         0          0         0         0          0          0          0          0          0
1.4103378e+12   .13407823   .11174434   .13407823   .13407823         0         0  1.5426595         0         0          0          0          0          0          0
1.4109426e+12   .04458315   .02229406   .04458315   .08914643         0         0   .4387522         0         0          0          0          0          0          0
1.4115474e+12           0           0  .022474436  .022474436         0         0          0         0         0          0          0  -.8394563          0          0
1.4119848e+12  -.06785028 -.022611646  -.11310939  -.29435095         0         0          0         0         0          0 -.58547246          0          0          0
1.4121522e+12           0  -.04486317  -.13464993  -.11219568         0         0          0         0         0          0          0 -1.4785606          0          0
 1.412244e+12   .46713465    .6445183    .5558658    .5558658         0         0          0         0         0          0          0          0 -.05470702          0
 1.412757e+12   .06573902   .06573902   .02191781           0         0         0  1.1940572         0         0          0          0          0          0          0
1.4128434e+12   -.3532792   -.4639354    -.530388    -.530388         0         0          0         0         0  -.6191709          0          0          0          0
1.4133618e+12   -.1123722   -.1123722  -.06740816  -.04493373         0         0          0         0         0          0          0  -.6651552          0          0
1.4134482e+12   .24900974   .20378135   .20378135    .2942177         0         0          0         0 1.7322943          0          0          0          0          0
1.4139666e+12   .18140595   .22670606    .2493484   .27198565         0         0   .9616556         0         0          0          0          0          0          0
 1.414404e+12   .25076953    .4327532    .5009118    .4554779         0         0          0         0         0          0 -.28324312          0          0          0
1.4145714e+12    .0891067   .02228412    .0891067   .11137099         0         0          0         0         0          0          0  -.8394563          0          0
1.4149224e+12  -.08853476  -.17714797  -.13283154  -.08853476         0         0          0         0         0          0          0          0 -1.0148153          0
1.4151762e+12   .06556661   .06556661   .02186031           0         0         0  .49685255         0         0          0          0          0          0          0
1.4152626e+12    .5797118    .5797118    .5154651    .5368852  2.466885         0          0         0         0          0          0          0          0          0
1.4156946e+12 -.021410983  -.06424671  -.14997324  -.14997324         0         0  .26445103         0         0          0          0          0          0          0
1.4158674e+12   .06386376   .08514262   .06386376   .06386376         0         0          0         0  .2544307          0          0          0          0          0
1.4163858e+12           0  -.04223865           0 -.021117095         0         0          0         0         0          0          0 -.20035207          0          0
1.4169042e+12  -.06347191  -.08463818  -.08463818  -.14816386         0         0   .7292541         0         0          0          0          0          0          0
 1.417428e+12 -.021256244   .06374164 -.021256244  -.04251701         0         0          0         0         0          0 -1.1496339          0          0          0
1.4175144e+12  -.06344507  -.04229224  .021139415   .23228814         0         0          0  .3186684         0          0          0          0          0          0
1.4175954e+12           0  -.16806726  -.21012826  -.18909556         0         0          0         0         0          0          0 -1.0718578          0          0
1.4176818e+12  -.37712175  -.33514905   -.4401139   -.4611201         0         0          0         0         0 -1.1383204          0          0          0          0
1.4182002e+12  -.02116626  -.08469194  -.12706482  -.06351223         0         0          0         0         0          0          0  -1.246159          0          0
1.4185458e+12   .10467917   .12560186   .20924887    .2301497         0         0          0         0  .4655541          0          0          0          0          0
 1.418805e+12           0 -.020718947 -.020718947  -.04144219         0         0   1.484559         0         0          0          0          0          0          0
1.4198472e+12    .1856245    .1856245    .2268276     .370905         0  1.630876          0         0         0          0          0          0          0          0
1.4203656e+12  -.24665993   -.3908264    -.432055  -.55584294         0         0          0         0         0          0          0          0 -.05470702          0
1.4206194e+12 -.021068156           0           0           0         0         0          0         0         0          0          0 -1.9433638          0          0
1.4207058e+12     .315027    .3988669    .3569558    .3988669         0         0          0         0         0 -.12886299          0          0          0          0
1.4217426e+12   .16732904    .2091176    .1882255   .12552303         0         0  1.5426595         0         0          0          0          0          0          0
1.4222664e+12  -.06390457  -.04259851   .04258037   .04258037         0  .4421073          0         0         0          0          0          0          0          0
1.4224338e+12  -.02131969           0 -.063972704  -.02131969         0         0   .4387522         0         0          0          0          0          0          0
1.4228712e+12   .08460237   .06345849   .12687674    .2324845         0         0          0         0         0          0          0          0  -.4280825          0
1.4230386e+12  -.06289968  -.12583894  -.16782047  -.18881784         0         0   .8454549         0         0          0          0          0          0          0
end
format %-tc event_dt
To put everything in context, I am providing a summary of the data in each columns:
  1. returns columns represent equity returns at 10 minutes interval, starting from 10 to 40 minutes
  2. columns labelled pos refer to positive observations
  3. columns labelled neg refer to negative observations
So I am running the following regressions and saving my results using estout:

Code:
eststo: quietly regress returns_10mins pos_cnfp - neg_rs, noconstant vce(robust)
eststo: quietly regress returns_20mins pos_cnfp - neg_rs, noconstant vce(robust)
eststo: quietly regress returns_30mins pos_cnfp - neg_rs, noconstant vce(robust)
eststo: quietly regress returns_40mins pos_cnfp - neg_rs, noconstant vce(robust)

estout using 1.Results_MNA_Surprise.xls, cells(b(star fmt(2)) t(par ([ ]))) starlevels(* 0.10 ** 0.05 *** 0.010) stats(r2 N cnfp cci ijc ism rs) replace

eststo clear
I would appreciate your advice to achieve the following:
  1. Add a column to my regression output table showing positive_betas - negative_betas for each of cnfp, cci, ijc, ism and rs, and for each return interval
  2. Perform a Wald Test that positive_betas - negative_betas !=0, saving the results in the table along with starlevels for each of cnfp, cci, ijc, ism and rs, and for each return interval
  3. And finally is there a more efficient way to run all the above regressions?
Thank you for your help.

Regards
Parvesh