求大神指点，刚学金融计量学和SAS，下面代码是按照书上内容打出来的，但下面出错
求大神帮忙修改运行不出部分


libname CAPM 'D:\SAS\3.2in';
data capm.riraw;
infile 'D:\SAS\fe\Chap3-2-1 BJS.csv' delimiter = ' , ' MISSOVER DSD lrecl=5000;
input date r1-r25 rf rm;
run;/*导入原始数据——收益率*/
data capm.rida;
infile 'D:\SAS\3.2in\Chap3-2-1 date.csv' delimiter = ' , ' MISSOVER DSD lrecl=5000;
input date date1;
run;/*从capm.riraw中读取date ri rf rm code，其中code取1-25，用来提取r1-r25分别放入不同的数据集中*/
%macro mac;
%do i=1 %to 25;
data capm.ri&i.;
set capm.riraw;
code=&i.;
ri=r&i.;
keep date ri rf rm code;
run;
%End;
%MEND mac;
%mac;
data capm.ri;
set capm.ri1 capm.ri2 capm.ri3 capm.ri4 capm.ri5 capm.ri6 capm.ri7 capm.ri8 capm.ri9 capm.ri10 capm.ri11 capm.ri12 capm.ri13 capm.ri14 capm.ri15 capm.ri16 capm.ri17 capm.ri18 capm.ri19 capm.ri20 capm.ri21 capm.ri22 capm.ri23 capm.ri24 capm.ri25;
run;
proc sort data=capm.ri; by date; run;
proc sort data=capm.rida; by date;run;

data capm.riraw1;
merge capm.ri capm.rida; by date;
rif=ri-rf;rmf=rm-rf;
run;
proc sort data=capm.riraw1; by code;run;
%macro mac;
%do i=1 %to 30;
data capm.t&i.;
set capm.riraw1;
if date1>=&i. and date1<=35+&i.;
rif=ri-rf;rmf=rm-rf;
run;
%End;
%MEND mac;
%mac;
/*以上可运行出来，下面运行出来出错*/

%macro mac;

%do i=1 %to 30;

datacapm.t&i.;

setcapm.riraw1;

ifdate1>=&i. and date1<=35+&i.;

rif=ri-rf;rmf=rm-rf;

run;

%End;

%MEND mac;

%mac;

%macro mac;

%do i=1 %to 30;

datacapm.t&i.;

setcapm.riraw1;

ifdate1>=&i. and date1<=35+&i.;

rif=ri-rf; rmf=rm-rf;

run;

proc reg data=capm.t&i.;

outest=capm.beta_&i.;

by code;

model rif=rmf;

run;

proc rank data=capm.beta_&i. out=capm.beta&i.groups=5;

ranks p =input(rmf,grpfmt.);

var rmf;

run;

%End;

%MEND mac;

%mac;

%macro mac;

%do i=1 %to 30;

data capm.beta&i.;

set capm.beta&i.;

date1=&i.+36;

keep code date1p;

run;

%End;

%MEND mac;

%mac;

data capm.cop;

set capm.beta1;

run;

%macro mac;

%do i=1 %to 30;

data capm.cop;

merge capm.copcapm.beta&i.;

by code date1;

run;

%End;

%MEND mac;

%mac;

data capm.riraw2;

set capm.riraw1;

if date1>=37 and date1<=66;

run;

proc sort data=capm.riraw2;

by code;run;

proc sort data=capm.riraw2;

by date1;run;

proc sort data=capm.cop;

by code;run;

proc sort data=capm.cop;

by date1;run;

data capm.cop2;

merge capm.cop capm.riraw2;

by date1 code;

keep code date1 ri rm rf p;

run;

proc sort data=capm.cop2;

by p date1;run;

proc univariate data=capm.cop2

var ri rm rf;

by p datel;

output out=capm.rip

mean=meanri mean=meanrmmean=meanrf;

run;

data capm.rip1;

set capm.rip;

meanrif=meanri-meanrf;

meanrmf=meanrm-meanrf;

run;

proc sort data=capm.rip1 ;

by p;run;

proc reg data=capm.rip1

outest=capm.beta;

model meanrif=meanrmf;

by p;

run;

proc univariate data=capm.rip1;

var meanri;

by p;

output out=capm.rip2

mean=meanrip;

run;

data capm.beta0;

merge capm.beta capm.rip2;

by p;

run;

proc reg data=capm.beta0;

model meanrip=meanrmf;

run;