SAS安全列名称

Question

SAS中有一种简单的方法可以将字符串转换为可用作列名的SAS安全名称吗？

即.

Rob Penridge ---->  Rob_Penridge

$*@'Blah@*   ---->  ____Blah__

我正在使用a proc transpose,然后想要在转置后使用重命名的列.

Answer 1

proc transpose 只要你设定,就会不加任何修改地取这些名字 options validvarname=any;

如果您想在之后使用列,可以使用NLITERAL函数构造可用于引用它们的命名文字:

options validvarname=any;

/* Create dataset and transpose it */
data zz;
    var1 = "Rob Penridge";    
    var2 = 5;
    output;

    var1 = "$*@'Blah@*";
    var2 = 100;
    output;           
run;

proc transpose
    data = zz
    out  = zz_t;
    id     var1;
run;


/* Refer to the transposed columns in the dataset using NLITERAL */
data _null_;
    set zz;
    call symput(cats("name", _n_), nliteral(var1));
run;

data blah;
    set zz_t;
    &name1. = &name1. + 5;
    &name2. = &name2. + 200;
run;