2019-09-15组内和组间排序

一、组内

data temp1;

    set temp;

    by id;

    gid+1;

    if first.id then gid=1;

run;

二、组间

data Mainminus_match1;

    set Mainminus_match;

    by erwei ;

    if first.erwei then indus+1;

run;