楼主: SarahLee1212
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[回归分析求助] 怎样设置行业虚拟变量 [推广有奖]

11楼
atmosphere510 发表于 2015-9-6 00:16:19
大神，我也想设置分类的虚拟变量，请问怎么设置啊？我有59个截面，想分成三类，我设截面为code，从1到59，前五个是一类，第六个到第16个是一类，后面剩下的是一类，请问怎么设啊？
12楼
SarahLee1212 发表于 2015-9-6 08:01:08
atmosphere510 发表于 2015-9-6 00:16
大神，我也想设置分类的虚拟变量，请问怎么设置啊？我有59个截面，想分成三类，我设截面为code，从1到59，前 ...
你可以用手工设置
13楼
梦梦梦梦 发表于 2016-6-25 21:03:05
12个行业，怎么弄行业虚拟变量，最后怎么解决了，求指教
14楼
changyunjie 发表于 2016-8-3 20:21:07
梦梦梦梦 发表于 2016-6-25 21:03
12个行业，怎么弄行业虚拟变量，最后怎么解决了，求指教
请问解决了吗，我也是12个行业，不知道怎么设置虚拟变量，谢谢哦！
15楼
黃河泉 在职认证  发表于 2016-8-4 08:59:17
1. 假设 ind 是行业变量（可能是文字或数字），其对应之虚拟变量为
  1. tab ind, gen(ind_dummy)
复制代码

2. 若在回归中，可直接（不需要上一步）用
  1. xi: reg y x1 x2 i.ind
复制代码
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16楼
mvylhru55 发表于 2018-4-7 21:19:25
SarahLee1212 发表于 2015-8-31 17:31
_IIndustry_2 |  -.0122758   .0133315    -0.92   0.357    -.0384374    .0138858
    _IIndustry_3 ...
请问全部都是用第一组作为对照组吗？对照组为0， 第二组的系数是第二组为1的结果是吗？那剩下的组是不管了吗？
17楼
林湾 发表于 2018-5-23 17:12:25 来自手机
changyunjie 发表于 2016-8-3 20:21
请问解决了吗，我也是12个行业，不知道怎么设置虚拟变量，谢谢哦！
同求，请问怎么设置行业虚拟变量
18楼
Binglingg 发表于 2019-3-29 18:32:20
黃河泉 发表于 2016-8-4 08:59
1. 假设 ind 是行业变量（可能是文字或数字），其对应之虚拟变量为
2. 若在回归中，可直接（不需要上一步） ...
您好，我的行业代码后面都有两位数，是全行业的，用了您的代码，结果生成了71个虚拟变量，请问这是怎么回事呀？
19楼
黃河泉 在职认证  发表于 2019-3-29 18:39:36
Binglingg 发表于 2019-3-29 18:32
您好，我的行业代码后面都有两位数，是全行业的，用了您的代码，结果生成了71个虚拟变量，请问这是怎么回 ...
有什么不对吗？
20楼
Binglingg 发表于 2019-3-29 18:46:39
Binglingg 发表于 2019-3-29 18:32
您好，我的行业代码后面都有两位数，是全行业的，用了您的代码，结果生成了71个虚拟变量，请问这是怎么回 ...
  1. * Example generated by -dataex-. To install: ssc install dataex
  2. clear
  3. input str6 code int year str3 indcd byte indcd_dummy70
  4. "000002" 2017 "K70" 0
  5. "000002" 2014 "K70" 0
  6. "000002" 2016 "K70" 0
  7. "000002" 2012 "K70" 0
  8. "000002" 2013 "K70" 0
  9. "000002" 2015 "K70" 0
  10. "000004" 2015 "C27" 0
  11. "000004" 2012 "C27" 0
  12. "000004" 2013 "C27" 0
  13. "000004" 2014 "C27" 0
  14. "000004" 2016 "C27" 0
  15. "000004" 2017 "C27" 0
  16. "000005" 2012 "K70" 0
  17. "000005" 2013 "K70" 0
  18. "000005" 2014 "K70" 0
  19. "000005" 2015 "K70" 0
  20. "000005" 2016 "N77" 0
  21. "000005" 2017 "N77" 0
  22. "000008" 2012 "H61" 0
  23. "000008" 2013 "H61" 0
  24. "000008" 2014 "H61" 0
  25. "000008" 2015 "C37" 0
  26. "000008" 2016 "C37" 0
  27. "000008" 2017 "C37" 0
  28. "000009" 2012 "S90" 0
  29. "000009" 2013 "S90" 0
  30. "000009" 2014 "S90" 0
  31. "000009" 2015 "S90" 0
  32. "000009" 2016 "S90" 0
  33. "000009" 2017 "S90" 0
  34. "000010" 2012 "C35" 0
  35. "000010" 2013 "C35" 0
  36. "000010" 2014 "C35" 0
  37. "000010" 2015 "E48" 0
  38. "000010" 2016 "E48" 0
  39. "000010" 2017 "E48" 0
  40. "000011" 2012 "K70" 0
  41. "000011" 2013 "K70" 0
  42. "000011" 2014 "K70" 0
  43. "000011" 2015 "K70" 0
  44. "000011" 2016 "K70" 0
  45. "000011" 2017 "K70" 0
  46. "000012" 2012 "C30" 0
  47. "000012" 2013 "C30" 0
  48. "000012" 2014 "C30" 0
  49. "000012" 2015 "C30" 0
  50. "000012" 2016 "C30" 0
  51. "000012" 2017 "C30" 0
  52. "000014" 2012 "K70" 0
  53. "000014" 2013 "K70" 0
  54. "000014" 2014 "K70" 0
  55. "000014" 2015 "K70" 0
  56. "000014" 2016 "K70" 0
  57. "000014" 2017 "K70" 0
  58. "000016" 2012 "C39" 0
  59. "000016" 2013 "C39" 0
  60. "000016" 2014 "C39" 0
  61. "000016" 2015 "C39" 0
  62. "000016" 2016 "C39" 0
  63. "000016" 2017 "C39" 0
  64. "000018" 2012 "C17" 0
  65. "000018" 2013 "C17" 0
  66. "000018" 2014 "C17" 0
  67. "000018" 2015 "C17" 0
  68. "000018" 2016 "E50" 0
  69. "000018" 2017 "E50" 0
  70. "000019" 2012 "C15" 0
  71. "000019" 2013 "C15" 0
  72. "000019" 2014 "C15" 0
  73. "000019" 2015 "C15" 0
  74. "000019" 2016 "C15" 0
  75. "000019" 2017 "C15" 0
  76. "000020" 2012 "C39" 0
  77. "000020" 2013 "C39" 0
  78. "000020" 2014 "C39" 0
  79. "000020" 2015 "C39" 0
  80. "000020" 2016 "C39" 0
  81. "000020" 2017 "C39" 0
  82. "000021" 2012 "C39" 0
  83. "000021" 2013 "C39" 0
  84. "000021" 2014 "C39" 0
  85. "000021" 2015 "C39" 0
  86. "000021" 2016 "C39" 0
  87. "000021" 2017 "C39" 0
  88. "000022" 2012 "G55" 0
  89. "000022" 2013 "G55" 0
  90. "000022" 2014 "G55" 0
  91. "000022" 2015 "G55" 0
  92. "000022" 2016 "G55" 0
  93. "000022" 2017 "G55" 0
  94. "000023" 2012 "C30" 0
  95. "000023" 2013 "C30" 0
  96. "000023" 2014 "C30" 0
  97. "000023" 2015 "C30" 0
  98. "000023" 2016 "C30" 0
  99. "000023" 2017 "C30" 0
  100. "000025" 2012 "F51" 0
  101. "000025" 2013 "F51" 0
  102. "000025" 2014 "F51" 0
  103. "000025" 2015 "F51" 0
  104. end
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