现有如下两列数: | |
0.940278 | 1 |
0.838616 | 0 |
0.84515 | 1 |
0.878174 | 1 |
0.88333 | 1 |
0.885006 | 1 |
想利用SAS 9.0画出ROC曲线,并求出AUC值,该怎么做啊!谢谢了!
楼主: bridog
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20394
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[原创博文] ROC曲线在SAS中如何绘制 |
博士生 84%
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回帖推荐data a;
input x iswy;
cards;
0.940278 1
0.838616 0
0.84515 1
0.878174 1
0.88333 1
0.885006 1
;
run;
Proc sort data=a out=a;
by descending x;
run;
data a;
set a;
i=1;
sn+i;
run;
data a;
set a;
wy+iswy;
if iswy=0 then isnotwy=1;
else isnotwy=0;
run;
data a ;set a;
notwy+isnotwy;
run;
proc sql;
create table roc as
select sn,wy/sum(iswy) as y,notwy/sum(isnotwy) as x
...
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