楼主: 思乐冰
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[新手尝试] 如何求三年滚动标准差 [推广有奖]

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楼主
思乐冰 发表于 2022-5-9 21:34:51 |AI写论文

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* Example generated by -dataex-. For more info, type help dataex
clear
input str12(Stkcd year) double Ins
"000059" "2012" .596965
"000059" "2013"  .55596
"000059" "2014" .572662
"000059" "2015" .547074
"000059" "2016" .577447
"000059" "2017" .507707
"000059" "2018" .496762
"000059" "2019" .494996
"000301" "2012" .392615
"000301" "2013" .378718
"000301" "2014" .373525
"000301" "2015" .390048
"000301" "2016" .387173
"000301" "2017" .379991
"000420" "2012" .225267
"000420" "2013" .223525
end


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关键词:标准差

沙发
思乐冰 发表于 2022-5-9 21:37:36
* Example generated by -dataex-. For more info, type help dataex
clear
input str12(Stkcd year) double Ins
"000059" "2012" .596965
"000059" "2013"  .55596
"000059" "2014" .572662
"000059" "2015" .547074
"000059" "2016" .577447
"000059" "2017" .507707
"000059" "2018" .496762
"000059" "2019" .494996
"000301" "2012" .392615
"000301" "2013" .378718
"000301" "2014" .373525
"000301" "2015" .390048
"000301" "2016" .387173
"000301" "2017" .379991
"000420" "2012" .225267
"000420" "2013" .223525
end

藤椅
思乐冰 发表于 2022-5-9 21:45:28
  1. * Example generated by -dataex-. For more info, type help dataex
  2. clear
  3. input str12(Stkcd year) double Ins
  4. "000059" "2012" .596965
  5. "000059" "2013"  .55596
  6. "000059" "2014" .572662
  7. "000059" "2015" .547074
  8. "000059" "2016" .577447
  9. "000059" "2017" .507707
  10. "000059" "2018" .496762
  11. "000059" "2019" .494996
  12. "000301" "2012" .392615
  13. "000301" "2013" .378718
  14. "000301" "2014" .373525
  15. "000301" "2015" .390048
  16. "000301" "2016" .387173
  17. "000301" "2017" .379991
  18. "000420" "2012" .225267
  19. "000420" "2013" .223525
  20. end
复制代码

板凳
思乐冰 发表于 2022-5-9 21:46:27
  1. * Example generated by -dataex-. For more info, type help dataex
  2. clear
  3. input str12(Stkcd year) double Ins
  4. "000059" "2012" .596965
  5. "000059" "2013"  .55596
  6. "000059" "2014" .572662
  7. "000059" "2015" .547074
  8. "000059" "2016" .577447
  9. "000059" "2017" .507707
  10. "000059" "2018" .496762
  11. "000059" "2019" .494996
  12. "000301" "2012" .392615
  13. "000301" "2013" .378718
  14. "000301" "2014" .373525
  15. "000301" "2015" .390048
  16. "000301" "2016" .387173
  17. "000301" "2017" .379991
  18. "000420" "2012" .225267
  19. "000420" "2013" .223525
  20. end
复制代码

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