在SAS中，PROC SQL提供了使用SQL语言的便捷途径，使得某些聚合运算能迅速完成。若想将SQL运算的结果存入Macro Variable中，INTO子句是关键。其基本语法如下：INTO :macro-variable-specification-1, :macro-variable-specification-2, ...值得注意的是，在INTO子句中，每个新创建的Macro Variable前都需要加上冒号“:”。
SQL过程步通过into :子句生成宏变量,具体方法在SAS编程:Proc SQL生成宏变量时INTO子句的使用 中有过介绍,我们需要使用第3种形式: into : macro-variable(指定一个或多个宏变量) into : macro-variable-1 − : macro-variable-n <NOTRIM> (指定一个宏变量序列) into : macro-variable SEPARATED BY 'charact...
However, PROC SQL is much more powerful andefficient in creating macro variables thanks to the in-line view capability and theSELECT, INTO, GROUP BY, HAVING, and ORDER BY clauses. In clinicalprogramming practice, PROC SQL can solve a lot of programming problems, sometimes it is even ...
/*Output: macro variable colname*/ %macro ColName(data=, colnum=);proc sql; select name into: colname separated by ',' from dictionary.columns wherelibname='WORK' and memname="&data." and varnum in &colnum.;/*varnum=n n为第几个变量,即第几列*/ run; quit; %mend; /*data aa;*...
createone macro variablethat willhold all values ofa certain data setvariable. procsql noprint;selectdistinctlocationinto:sites separatedby''fromsasuser.schedule; quit; Global Symbol Table(符号表中,宏与宏值) SitesBoston Dallas Seattle Proc sql中不会进行自动的数据类型转换。对于你想要使用的数据类型要...
PROC SQL SQL相比DATA步可以很快速的完成一些聚合运算。这些运算后的结果如果想要输出到Macro Variable中,就需要用INTO子句来完成。其语法格式如下: INTO:macro-variable-specification-1<, :macro-variable-specification-2...> 特别注意,INTO子句中需要在每个创建的Macro Variable前加“:” ...
/*方法2: macro variable*/ proc sql noprint; select catx(' = ', cats(AVISITN), quote(cats(AVISIT))) into :fmtlst separated by ' ' from demo order by AVISITN; quit; proc format; value vs2t &fmtlst; run; 通过CNTLIN=选项创建。
proc sql; select name into: names separated by " " from SASHelp.class;quit; %put &Sqlobs Names added to Macro variable (array) %nrstr(&NAMES) ; 这里第二行的names宏变量就是包含了SASHelp.class表中的全部name的值,并且以" "分隔...
proc sql noprint; select count(*) into: inn_nvar1 from temp; select distinct name into :inxvar1 - :inxvar&inn_nvar1. from temp; quit; That is, I need to first store # of unique values of name, and then store each of them into macro variable of inxvar. However, I am ...
宏用来处理重复工作最好，比如你需要跑10个回归，用proc reg...，这10个回归其他都一样，就是因变量...