- * Example generated by -dataex-. To install: ssc install dataex
- clear
- input long stc float(day_1 sdrate riskpremium smb hml)
- 600508 19358 -.002691 .014928 -.005678 .004306
- 600508 19355 -.005407 .011928 -.001772 .000152
- 600508 19354 -.004053 -.006072 -.002592 -.00636
- 600508 19353 -.001964 .004928 .011332 -.003842
- 600508 19352 .002448 .025928 -.000259 .006486
- 600508 19351 -.00681 .002928 .005763 .0044
- 600508 19348 .012114 -.006072 .006007 .001388
- 600508 19347 .007049 .002928 -.002988 .000261
- 600508 19346 .006948 .000928 .001876 -.004299
- 600508 19345 -.006595 -.000072 -.005259 -.002601
- 600508 19344 .01947 .003928 .001212 -.003624
- 600508 19341 .004591 .042928 -.002801 .007982
- 600508 19340 -.008591 -.011072 -.002463 .002071
- 600508 19339 -.007585 .002928 -.004403 -.002807
- 600508 19338 .007619 -.005072 -.00213 -.00194
- 600508 19337 -.001792 .011928 .009176 -.003289
- 600508 19334 .016415 .015928 .006288 -.001602
- 600508 19333 -.004817 -.001072 .001876 .004278
- 600508 19332 .014131 .030928 .007149 -.000013
- 600508 19331 .005101 .008928 .003107 .000791
- 600508 19330 -.031406 -.013072 -.009087 .016393
- 600508 19327 -.003286 .008928 .005669 .001682
- 600508 19326 .01685 -.006072 -.007362 .002134
- 600508 19325 -.011178 -.010072 -.015477 .008386
- 600508 19324 -.020371 -.016072 -.030202 .005761
- 600508 19323 .006832 -.007072 -.002483 .003074
- 600508 19320 -.004513 .004928 -.003446 -.001318
- 600508 19319 -.010357 -.008072 -.001396 .004142
- 600508 19318 .009866 .009928 .000635 .002857
- 600508 19317 -.004007 -.004072 .000665 -.001055
- 600508 19316 .008885 .000928 .008207 .006508
- 600508 19313 .002194 -.007072 .000982 .002521
- 600508 19312 -.000335 -.013072 -.005993 .00154
- 600508 19311 -.012362 .002928 -.003822 -.00175
- 600508 19310 -.010883 -.015072 -.00566 -.000748
- 600508 19309 -.015921 .004928 .00399 .005905
- 600508 19306 -.014631 -.002072 .000715 .001631
- 600508 19305 -.01358 -.017072 -.010275 .002294
- 600508 19304 -.001149 -.001072 .000039 -.001648
- 600508 19303 -.005109 -.004072 -.002853 .001793
- 600508 19302 .012771 -.002072 .001725 .000619
- 600508 19299 -.004513 .006928 .001594 .002067
- 600508 19298 .001685 .017928 -.000633 .000908
- 600508 19297 -.001807 .002928 -.000903 -.000609
- 600508 19296 -.000446 .001928 -.000916 .002694
- 600508 19295 -.01556 -.003072 .001918 .000511
- 600508 19292 -.001373 -.017072 -.005312 .00169
- 600508 19291 -.002506 -.007072 -.006558 .002137
- 600508 19290 -.010061 -.000072 .001901 .001655
- 600508 19289 -.002859 -.010072 .003089 .001322
- end
老师您好,抱歉打扰您。。。我想算一下异质波动率 IVOL,上标i,下标t(代表第i只个股在t个月的IVOL)。打算做一下一千只左右股票在预先设定期间内(10年)个股每个月日超额收益率回归到fama-french三因子模型后得到的残差项的标准差,这样来定义IVOL。也就是一只股票一个月的数据和三因子做一次回归(意味着总计需要1000只股*120个月次回归),怎样子可以比较快得出这么多股票各自每个月的IVOL?