假设你的数据集为在work逻辑库中的数据集date

data date;
set date;
year=year(date);
run;

proc sort data=date;
by year;
run;

proc means data=date mean std;
var p;
by year;
output out=result;   /*save the result file*/
run;

假设你的数据集为在work逻辑库中的数据集date

data date;
set date;
year=year(date);
run;

proc sort data=date;
by year;
run;

proc means data=date mean std;
var p;
by year;
output out=result;   /*save the result file*/
run;

假设你的数据集为在work逻辑库中的数据集date

data date;
set date;
year=year(date);
run;

proc sort data=date;
by year;
run;

proc means data=date mean std;
var p;
by year;
output out=result;   /*save the result file*/
run;

假设你的数据集为在work逻辑库中的数据集date

data date;
set date;
year=year(date);
run;

proc sort data=date;
by year;
run;

proc means data=date mean std;
var p;
by year;
output out=result;   /*save the result file*/
run;

还在研究中，暂时还没能力回答你