0=没病 1=有病 怎么把每一行的个人情况融合成1、0的数字串？
试过以下code，失败。。。有大佬能帮帮忙吗！谢谢。


proc sql;
create table want as
select id, copd, mi,stroke,cancer, summary as copd||mi
from webwork.import
group by id;
quit;

proc print data=webwork.import;
a={copd mi};
b={stroke};
c=a||b;
print c;