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...
/*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...
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 ...
SYMBOLGEN: Macro variable I resolves to 0 MPRINT(VARX): select a1 into:a1 from b; MPRINT(VARX): quit; //从proc sql到这里就是宏varx编译生成的一段proc sql代码,这部分提交给sas运行。 NOTE: PROCEDURE SQL used (Total process time): ...
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...
我想循环使用逗号分隔的宏变量,如下所示,我也在proc sql语句的where条件中使用该变量: %let example = (1, 2, 3, 4) 我发现以下语法几乎涵盖了我的情况: %macro px; %let value = 1 2 3 4; %local i next_value; %let i=1; %do %while (%scan(&value, &i) ne ); ...
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...
自动生成宏变量有两种方法,data步里用call symputx(),或者proc sql中用select into:。 零售项目中,万同学的代码里有很多select into:的使用;唐同学的宏里面就有不少call symput()。 call symputx的用法举例: /*6.1b using symputx to create a macro variable*/ /*生成宏变量jane_age,取值为Data步生成的数据...