我创建了下面的宏来生成基于日期宏的几个数据集。
%macro pull(date);
proc sql;
create table new&date as
select * from acct
where date=&date.;
quit;
%mend;
因此,如果我想为20170101 20170201 20170301 20170401 20170501创建数据集,我所能做的就是使用下面的宏
%macro pull(20170101)
%macro pull(20170201)
%macro pull(20170301)
%macro pull(20170401)
%macro pull(20170501)
我现在正计划创建两个宏变量
%let begin=20170101;
%let end =20170501;
使用循环创建基于开始和结束的数据集。是否可以这样做。所以我要做的是将开始日期和结束日期作为宏变量,并从acct数据集中提取开始日期和结束日期之间的记录,并在开始日期和结束日期之间为每个月创建单独的数据集
注意数据集包含每年的月度日期。
以下是我正在尝试的代码
%let beg="01jan2000"d;
%let end="01jan2001"d;
%macro Test;
%do date=&beg. %to &end.;
proc sql;
create table IPw_&date. as
select *
from sample
where date=&date. quit;
%end;
%mend;
%Test;
答案 0 :(得分:1)
当必须从不是SAS日期值的值推断出日期信息时,您需要input
获取日期值的信息,并put
迭代的值以获得所需的非日期表示。
此示例演示
代码
%macro pull(yyyymmdd);
%local out;
%let out = pull_&yyyymmdd;
data &out;
pull_date = input ("&yyyymmdd", yymmdd8.);
format pull_date yymmdd10.;
run;
%mend;
%macro pull_each_month(begin=, end=);
%local
begin_date end_date
begin_month end_month
pull_date pull_ymd
;
%put NOTE: &=begin &=end;
%let begin_date = %sysfunc(inputn(&begin,yymmdd8.));
%let end_date = %sysfunc(inputn(&end,yymmdd8.));
%put NOTE: &=begin_date &=end_date;
%let begin_month = %sysfunc(intnx(month,&begin_date,0));
%let end_month = %sysfunc(intnx(month,&end_date,0));
%put NOTE: &=begin_month &=end_month;
%let pull_month = &begin_month;
%do %while (&pull_month <= &end_month);
%let pull_ymd = %sysfunc(putn(&pull_month,yymmddn8.));
%put NOTE: Invoking pull for &=pull_month &=pull_ymd;
%pull (&pull_ymd)
%let pull_month = %sysfunc(INTNX(MONTH,&pull_month,1));
%end;
%mend;
%pull_each_month (
begin = 20170101
, end = 20170501
)
%macro pull_each_month(begin=, end=);
%local
begin_date end_date
begin_month end_month
pull_date pull_ymd
;
%put NOTE: &=begin &=end;
%let begin_date = %sysfunc(inputn(&begin,yymmdd8.));
%let end_date = %sysfunc(inputn(&end,yymmdd8.));
%put NOTE: &=begin_date &=end_date;
%let begin_month = %sysfunc(intnx(month,&begin_date,0));
%let end_month = %sysfunc(intnx(month,&end_date,0));
%put NOTE: &=begin_month &=end_month;
%let pull_month = &begin_month;
%do %while (&pull_month <= &end_month);
%let pull_ymd = %sysfunc(putn(&pull_month,yymmddn8.));
%put NOTE: Invoking pull for &=pull_month &=pull_ymd;
%let pull_month = %sysfunc(INTNX(MONTH,&pull_month,1));
%end;
%mend;
%pull_each_month (
begin = 20170101
, end = 20170501
)
答案 1 :(得分:0)
%macro pull(begin,end);
%let i=0;
%let begin=%sysfunc(inputn(&begin,anydtdte9.));
%let end=%sysfunc(inputn(&end,anydtdte9.));
%do %until (&begin=&end);
%let begin=%sysfunc(intnx(month,&begin,&i));
%let date=%sysfunc(putn(&begin,yymmddn8.));
proc sql;
create table new&date as
select * from acct where date=&date.;
quit;
%let i=%eval(&i+1);
%end;
%mend;
%pull(20170101,20170501)