好像是用到Bartlett's test,请问是吗?在stata中怎么实现这个检验啊?
部分数据如下:
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- * Example generated by -dataex-. To install: ssc install dataex
- clear
- input str7 month double pe_group float Rpe
- "2000-04" 1 1.0568731
- "2000-04" 10 4.5449543
- "2000-05" 1 .28364068
- "2000-05" 10 7.256728
- "2000-06" 1 1.615665
- "2000-06" 10 5.353874
- "2000-07" 1 .8430888
- "2000-07" 10 -4.2913327
- "2000-08" 1 -5.944741
- "2000-08" 10 -7.064318
- "2000-09" 1 3.282044
- "2000-09" 10 1.8400534
- "2000-10" 1 4.5522876
- "2000-10" 10 6.908288
- "2000-11" 1 -3.729717
- "2000-11" 10 -.9293364
- "2000-12" 1 -1.7031157
- "2000-12" 10 2.3375256
- "2001-01" 1 -8.784877
- "2001-01" 10 -1.8318678
- "2001-02" 1 8.570084
- "2001-02" 10 6.614954
- "2001-03" 1 .32673725
- "2001-03" 10 -2.961357
- "2001-04" 1 3.253896
- "2001-04" 10 -.4007596
- "2001-05" 1 -.17409217
- "2001-05" 10 .738491
- "2001-06" 1 -13.206244
- "2001-06" 10 -11.150176
- "2001-07" 1 -4.54394
- "2001-07" 10 -1.5193508
- "2001-08" 1 -13.696084
- "2001-08" 10 -3.088878
- "2001-09" 1 -3.3942466
- "2001-09" 10 -4.177815
- "2001-10" 1 3.269756
- "2001-10" 10 2.46493
- "2001-11" 1 -9.115622
- "2001-11" 10 -.9006248
- "2001-12" 1 -16.329002
- "2001-12" 10 -3.811634
- "2002-01" 1 5.776729
- "2002-01" 10 1.718223
- "2002-02" 1 9.252511
- "2002-02" 10 2.523239
- "2002-03" 1 4.487519
- "2002-03" 10 1.9174887
- "2002-04" 1 -7.686377
- "2002-04" 10 -8.870165
- "2002-05" 1 11.68479
- "2002-05" 10 16.656778
- "2002-06" 1 -4.569487
- "2002-06" 10 -4.930008
- "2002-07" 1 -.2102751
- "2002-07" 10 1.4934283
- "2002-08" 1 -7.169538
- "2002-08" 10 -4.454941
- "2002-09" 1 -5.708391
- "2002-09" 10 -4.484365
- "2002-10" 1 -7.036925
- "2002-10" 10 -3.598886
- "2002-11" 1 -5.381551
- "2002-11" 10 -3.720749
- "2002-12" 1 9.869685
- "2002-12" 10 8.676769
- "2003-01" 1 .4826658
- "2003-01" 10 1.2779065
- "2003-02" 1 -3.829301
- "2003-02" 10 3.171578
- "2003-03" 1 -6.193032
- "2003-03" 10 6.875524
- "2003-04" 1 4.1779084
- "2003-04" 10 4.5429645
- "2003-05" 1 -7.680101
- "2003-05" 10 -5.691186
- "2003-06" 1 -4.0343304
- "2003-06" 10 2.3388977
- "2003-07" 1 -2.612408
- "2003-07" 10 -4.147039
- "2003-08" 1 -4.1628942
- "2003-08" 10 -4.1195874
- "2003-09" 1 -10.604317
- "2003-09" 10 5.9259
- "2003-10" 1 -.04576769
- "2003-10" 10 4.4125752
- "2003-11" 1 -4.2430434
- "2003-11" 10 11.035
- "2003-12" 1 8.782889
- "2003-12" 10 6.696218
- "2004-01" 1 12.41764
- "2004-01" 10 5.405829
- "2004-02" 1 2.936206
- "2004-02" 10 4.1298113
- "2004-03" 1 -12.74618
- "2004-03" 10 -10.21592
- "2004-04" 1 -3.802344
- "2004-04" 10 -3.206588
- "2004-05" 1 -13.506953
- "2004-05" 10 -7.621353
- end
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