SAS中文论坛

标题: SAS编程计算率的95%置信区间。急等答案，谢谢！ [打印本页]

作者: shiyiming 时间: 2011-12-6 11:58
标题: SAS编程计算率的95%置信区间。急等答案，谢谢！
请问一下如何用SAS编程计算某个率的95%置信区间？例如有100个受访者，对A,B两种物品做出好，一般，差的评价。100人中队两种物品的评价相同的比例为一致率，请问如何用SAS来计算这个一致率的95%置信区间？谢谢，急等答案！

作者: shiyiming 时间: 2012-5-28 21:39
标题: Re: SAS编程计算率的95%置信区间。急等答案，谢谢！
[code:1xe4m806]

data ads;
do a=1 to 3;
do b=1 to 3;
      input w@@;
      output;
end;
end;
cards;
48 24 8 10 25 25 10 25 25
;

proc freq;
  weight w;
  tables a*b/agree;
  output out=bds kappa;
run;
data cds;
  set bds;
  u=_kappa_/E_kappa;
  p=2*(1-probnorm(u));
  u=round(u,0.001);
  p=round(p,0.000001);
  proc print;
run;

[/code:1xe4m806]

作者: shiyiming 时间: 2012-5-30 22:33
标题: Re: SAS编程计算率的95%置信区间。急等答案，谢谢！
[quote="MerlinZHOU":ngdzlwp1][code:ngdzlwp1]

data ads;
do a=1 to 3;
do b=1 to 3;
      input w@@;
      output;
end;
end;
cards;
48 24 8 10 25 25 10 25 25
;

proc freq;
  weight w;
  tables a*b/agree;
  output out=bds kappa;
run;
data cds;
  set bds;
  u=_kappa_/E_kappa;
  p=2*(1-probnorm(u));
  u=round(u,0.001);
  p=round(p,0.000001);
  proc print;
run;

[/code:ngdzlwp1][/quote:ngdzlwp1]

100人评价，这回复里这data步的意思是~？？求大牛们解释~？

作者: shiyiming 时间: 2012-5-30 22:33
标题: Re: SAS编程计算率的95%置信区间。急等答案，谢谢！
[quote="MerlinZHOU":2ux7th9z][code:2ux7th9z]

data ads;
do a=1 to 3;
do b=1 to 3;
      input w@@;
      output;
end;
end;
cards;
48 24 8 10 25 25 10 25 25
;

proc freq;
  weight w;
  tables a*b/agree;
  output out=bds kappa;
run;
data cds;
  set bds;
  u=_kappa_/E_kappa;
  p=2*(1-probnorm(u));
  u=round(u,0.001);
  p=round(p,0.000001);
  proc print;
run;

[/code:2ux7th9z][/quote:2ux7th9z]

100人评价，这回复里这data步的意思是~？？求大牛们解释~？

作者: shiyiming 时间: 2012-5-30 22:55
标题: Re: SAS编程计算率的95%置信区间。急等答案，谢谢！
原始数据入下
[code:1ya356sp]
               b
a
   1    2    3
1 48 24    8
2 10 25    25
3 10 25    25

[/code:1ya356sp]
通俗的解释是w的观测值被分成a,b两类
采用上述方式数据输入是为了评价a和b 之间的关系或a b对w的影响等。

欢迎光临 SAS中文论坛 (http://www.mysas.net/forum/)